1
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Yang H, Wu K, Guo H, Wei J, Guo J, Liu R, Wang X, Bai Y, Xu Y, Li T, Zhu C, Hou F. Crystallinity Control and Strain Release in Wide-Bandgap Perovskite Film via Seed-Induced Growth for Efficient Photovoltaics. ACS APPLIED MATERIALS & INTERFACES 2024; 16:42566-42576. [PMID: 39088734 DOI: 10.1021/acsami.4c08445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/03/2024]
Abstract
The seed method stands out as a straightforward and efficient approach for fabricating high-performance perovskite solar cells (PSCs). In this study, we propose the utilization of an antisolvent as an additive to induce crystal seeding, thereby facilitating the growth of wide-bandgap perovskite grains. Specifically, we introduce three commonly used antisolvents─ethyl acetate (EA), isopropanol (IPA), and chlorobenzene (CB)─directly into the perovskite precursor solution to generate perovskite seeds, which serve to promote subsequent nucleation. This antisolvent-crystal seeding method (ACSM) results in increased grain sizes, reduced film defects, and overall improved film quality. Consequently, the power conversion efficiencies (PCEs) of 1.647 eV PSCs with EA, IPA, and CB additives are recorded at 19.86%, 20.61%, and 20.45%, respectively, surpassing that of the reference device with a PCE of 18.83%. Furthermore, the stability of the PSCs prepared through ACSM is notably enhanced. Notably, PSCs optimized with IPA retain 75% of the original PCE after being stored in ambient air conditions (25 °C, RH ∼ 15%) for 30 days, better than the CB-added (64%) and the EA-added devices (53%), while the reference devices only retain 31% of the initial PCE. Moreover, even after continuous thermal annealing at 50 °C for 200 h, IPA-assisted devices demonstrate the best stability, followed by those with CB and EA, with the reference exhibiting the poorest stability.
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Affiliation(s)
- Haoran Yang
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Kai Wu
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Haikuo Guo
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Jiali Wei
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Jingwei Guo
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Rui Liu
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Xin Wang
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Yali Bai
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Yue Xu
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Tiantian Li
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Chengjun Zhu
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
| | - Fuhua Hou
- School of Physical Science and Technology, Key Laboratory of Semiconductor Photovoltaic Technology and Energy Materials at Universities of Inner Mongolia Autonomous Region, Inner Mongolia University, Hohhot 010021, China
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2
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Gao Y, Song Z, Fu Q, Chen Y, Yang L, Hu Z, Chen Y, Liu Y. Controlled Nucleation and Oriented Crystallization of Methylammonium-Free Perovskites via In Situ Generated 2D Perovskite Phases. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2405921. [PMID: 38932651 DOI: 10.1002/adma.202405921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/08/2024] [Indexed: 06/28/2024]
Abstract
Enhancing stability while maintaining high efficiency is among the primary challenges in the commercialization of perovskite solar cells (PSCs). Here, a crystal growth technique assisted by in situ generated 2D perovskite phases has been developed to construct high-quality 2D/3D perovskite films. The in situ generated 2D perovskite serve as templates for regulating the nucleation and oriented crystal growth in the α-FAPbI3-rich film. This led to a high film quality with much reduced trap density and an ultralong carrier lifetime. The obtained perovskite film shows excellent stability under extreme environment conditions (T = 200 °C, RH = 75 ± 5%). The corresponding PSC achieved an efficiency of 26.16% (certified 25.84%), along with excellent operational stability (T93 > 1300 h, T ≅ 50 °C) as well as outstanding high and low temperature cycle stability.
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Affiliation(s)
- Yuping Gao
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zonglong Song
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Qiang Fu
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Yu Chen
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, 100049, China
| | - Liu Yang
- Department of Microelectronic Science and Engineering, Ningbo University, Ningbo, 315211, China
| | - Ziyang Hu
- Department of Microelectronic Science and Engineering, Ningbo University, Ningbo, 315211, China
| | - Yongsheng Chen
- Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
| | - Yongsheng Liu
- The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
- Renewable Energy Conversion and Storage Center (RECAST), Nankai University, Tianjin, 300071, China
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3
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Saeed A, Wang L, Chen Z, Fang J, Hussain I, Yuan L, Wang S, Zhao J, Zhang H, Miao Q. Revealing the Roles of Guanidine Hydrochloride Ionic Liquid in Ion Inhibition and Defects Passivation for Efficient and Stable Perovskite Solar Cells. CHEMSUSCHEM 2024; 17:e202400466. [PMID: 38727153 DOI: 10.1002/cssc.202400466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 05/10/2024] [Indexed: 07/23/2024]
Abstract
As a result of full-scale ongoing global efforts, the power conversion efficiency (PCE) of the organic-inorganic metal halide perovskite has skyrocketed. Unfortunately, the long-term operational stability for commercialization standards is still lagging owing to intrinsic defects such as ion migration-induced degradation, undercoordinated Pb2+, and shallow defects initiated by disordered crystal growth. Herein, we employed multifunctional, non-volatile tetra-methyl guanidine hydrochloride [TMGHCL] ionic liquid (IL) as an additive to elucidate defects' passivation effects on organic-inorganic metal halide perovskite. More specifically, the formation of hydrogen bonds between H+ in GA+ and I- and coordinate bonding between Cl- and undercoordinated Pb2+ could significantly passivate these defects. The hypothesis was confirmed by both experimental and DFT simulations displaying that the optimized ratio of IL integration restrains ion migration, improving grains' size, and significantly elongating the carrier lifetime. Remarkably, the modified cell achieved a peak efficiency of 22.00 % with negligible hysteresis, compared to the control device's PCE of 20.12 %. In addition, the TMGHCL-based device retains its 93.29 % efficiency after 16 days of continuous exposure to air with a relative humidity of 35±5% and temperature of 25±5 °C. This efficient approach of adding IL to perovskites absorber can produce high PCE and has strong commercialization potential.
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Affiliation(s)
- Aamir Saeed
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
- University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Liang Wang
- Info-Powered Energy System Research Center (i-PERC), The University of Electro-Communications, Tokyo, 182-8585
| | - Zhaoyang Chen
- Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology, Henan University, Zhengzhou, 450000, P. R. China
| | - Junhui Fang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Iqbal Hussain
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Lin Yuan
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Shuai Wang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
| | - Jianwei Zhao
- Shenzhen Huasuan Technology Co. Ltd, Shenzhen, 518055, P.R. China
| | - Haitao Zhang
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
- Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology, Henan University, Zhengzhou, 450000, P. R. China
| | - Qingqing Miao
- CAS Key Laboratory of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P.R. China
- Longzihu New Energy Laboratory, Zhengzhou Institute of Emerging Industrial Technology, Henan University, Zhengzhou, 450000, P. R. China
- Langfang Technological Centre of Green Industry, Langfang, 065001, P.R. China
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Wang S, Yang Q, Han X, Chen D, Liu B, Fang W. Regulating structural stability and photoelectrical properties of FAPbI 3via formamidine cation orientation. Phys Chem Chem Phys 2024; 26:13979-13986. [PMID: 38682867 DOI: 10.1039/d4cp00507d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2024]
Abstract
Organic cations play a significant role in the structural stability and photoelectrical properties of organic-inorganic hybrid perovskites. The orientation of organic cations impacts its interaction with inorganic octahedrons [PbI]6-, subsequently modifying the atomic structure and electronic and optical properties of perovskite materials. However, it is still challenging to regulate the stability of perovskites with different orientations. In this work, density functional theory calculations were performed to investigate the effects of the formamidine cation (FA+) located at the angles of 0°, 45°, 90° and 180° (relative to the normal of the crystal plane) along the typical crystal directions ([001], [010], [110] and [111]) on the structural stability and photoelectrical properties of formamidine lead iodide (FAPbI3). The results show that when FA+ is located at 45° along the [111] direction, FAPbI3 achieves the highest stability and excellent photoelectrical properties. The energy evolution curves display that the system with the orientation of [111] has the minimum energy value, signifying stronger stability than the other orientations. Especially, when FA+ is located at 45° along the [111] direction. it exhibits a stronger hydrogen bond between H and I atoms, shorter Pb-I bond length and smaller [PbI]6- octahedral tilt bond angle. The band gap in the [110] direction changes from direct to indirect while FAPbI3 with other FA+ orientations still maintains the direct band structure located at the high symmetric R point. Furthermore, FA+ orientation drives the redshift of FAPbI3 towards the long wavelength region in the [111] crystal direction, which enhances the light absorption coefficient. This work can offer guidance in employing molecular regulation technology for the development of stable perovskite solar cells.
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Affiliation(s)
- Shuning Wang
- College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China.
| | - Qi Yang
- College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Xiuchen Han
- College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China.
| | - Dongmeng Chen
- College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China.
| | - Bing Liu
- College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China.
- College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, P. R. China
| | - Wenjing Fang
- College of Science, China University of Petroleum (East China), Qingdao 266580, P. R. China.
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5
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Gao M, Xu X, Tian H, Ran P, Jia Z, Su Y, Hui J, Gan X, Zhao S, Zhu H, Lv H, Yang YM. Enhancing Efficiency of Large-Area Wide-Bandgap Perovskite Solar Modules with Spontaneously Formed Self-Assembled Monolayer Interfaces. J Phys Chem Lett 2024; 15:4015-4023. [PMID: 38577843 DOI: 10.1021/acs.jpclett.4c00814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Wide-bandgap (WBG) perovskites play a crucial role in perovskite-based tandem cells. Despite recent advances using self-assembled monolayers (SAMs) to facilitate efficiency breakthroughs, achieving precise control over the deposition of such ultrathin layers remains a significant challenge for large-scale fabrication of WBG perovskite and, consequently, for the tandem modules. To address these challenges, we propose a facile method that integrates MeO-2PACz and Me-4PACz in optimal proportions (Mixed SAMs) into the perovskite precursor solution, enabling the simultaneous codeposition of WBG perovskite and SAMs. This technique promotes the spontaneous formation of charge-selective contacts while reducing defect densities by coordinating phosphonic acid groups with the unbonded Pb2+ ions at the bottom interface. The resulting WBG perovskite solar cells (PSCs) demonstrated a power conversion efficiency of 19.31% for small-area devices (0.0585 cm2) and 17.63% for large-area modules (19.34 cm2), highlighting the potential of this codeposition strategy for fabricating high-performance, large-area WBG PSCs with enhanced reproducibility. These findings offer valuable insights for advancing WBG PSCs and the scalable fabrication of modules.
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Affiliation(s)
- Mingyang Gao
- Jiangxi Intelligent Building Engineering Research Center College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Xuehui Xu
- Jiangxi Intelligent Building Engineering Research Center College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, China
- Intelligent Optics & Photonics Research Center, Jiaxing Research Institute of Zhejiang University, Jiaxing 314041, Zhejiang, China
| | - Hong Tian
- Jiangxi Intelligent Building Engineering Research Center College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, China
- State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Peng Ran
- State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Ziyan Jia
- Jiangxi Intelligent Building Engineering Research Center College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, China
- Intelligent Optics & Photonics Research Center, Jiaxing Research Institute of Zhejiang University, Jiaxing 314041, Zhejiang, China
| | - Yirong Su
- State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
| | - Juan Hui
- State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Intelligent Optics & Photonics Research Center, Jiaxing Research Institute of Zhejiang University, Jiaxing 314041, Zhejiang, China
| | - Xianjin Gan
- Jiangxi Intelligent Building Engineering Research Center College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, China
| | - Shuo Zhao
- State Key Laboratory of Modern Optical Instrumentation Key Laboratory of Excited-State Materials of Zhejiang Province Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Haiming Zhu
- State Key Laboratory of Modern Optical Instrumentation Key Laboratory of Excited-State Materials of Zhejiang Province Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Hui Lv
- Jiangxi Intelligent Building Engineering Research Center College of Civil Engineering and Architecture, Nanchang Hangkong University, Nanchang 330063, China
| | - Yang Michael Yang
- State Key Laboratory of Modern Optical Instrumentation College of Optical Science and Engineering, Zhejiang University, Hangzhou 310027, China
- Intelligent Optics & Photonics Research Center, Jiaxing Research Institute of Zhejiang University, Jiaxing 314041, Zhejiang, China
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6
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Dong Y, Zhang J, Zhang H, Wang W, Hu B, Xia D, Lin K, Geng L, Yang Y. Multifunctional MOF@COF Nanoparticles Mediated Perovskite Films Management Toward Sustainable Perovskite Solar Cells. NANO-MICRO LETTERS 2024; 16:171. [PMID: 38602570 PMCID: PMC11009200 DOI: 10.1007/s40820-024-01390-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 02/27/2024] [Indexed: 04/12/2024]
Abstract
Although covalent organic frameworks (COFs) with high π-conjugation have recently exhibited great prospects in perovskite solar cells (PSCs), their further application in PSCs is still hindered by face-to-face stacking and aggregation issues. Herein, metal-organic framework (MOF-808) is selected as an ideal platform for the in situ homogeneous growth of a COF to construct a core-shell MOF@COF nanoparticle, which could effectively inhibit COF stacking and aggregation. The synergistic intrinsic mechanisms induced by the MOF@COF nanoparticles for reinforcing intrinsic stability and mitigating lead leakage in PSCs have been explored. The complementary utilization of π-conjugated skeletons and nanopores could optimize the crystallization of large-grained perovskite films and eliminate defects. The resulting PSCs achieve an impressive power conversion efficiency of 23.61% with superior open circuit voltage (1.20 V) and maintained approximately 90% of the original power conversion efficiency after 2000 h (30-50% RH and 25-30 °C). Benefiting from the synergistic effects of the in situ chemical fixation and adsorption abilities of the MOF@COF nanoparticles, the amount of lead leakage from unpackaged PSCs soaked in water (< 5 ppm) satisfies the laboratory assessment required for the Resource Conservation and Recovery Act Regulation.
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Affiliation(s)
- Yayu Dong
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China
- School of Materials Science and Engineering, East China Jiaotong University, Nanchang, 330013, Jiangxi, People's Republic of China
| | - Jian Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China.
| | - Hongyu Zhang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China
| | - Wei Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China
| | - Boyuan Hu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China
| | - Debin Xia
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China
| | - Kaifeng Lin
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China
| | - Lin Geng
- School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China
| | - Yulin Yang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China.
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7
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Lei B, Cui W, Sheng J, Zhong F, Dong F. Halogen-Site Regulation in Cs 3Bi 2X 9 Quantum Dots for Efficient and Selective Oxidation of Benzyl Alcohol Driven by Solar Light. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308088. [PMID: 38009494 DOI: 10.1002/smll.202308088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 10/13/2023] [Indexed: 11/29/2023]
Abstract
Sluggish charge kinetics and low selectivity limit the solar-driven selective organic transformations under mild conditions. Herein, an efficient strategy of halogen-site regulation, based on the precise control of charge transfer and molecule activation by rational design of Cs3Bi2X9 quantum dots photocatalysts, is proposed to achieve both high selectivity and yield of benzyl-alcohol oxidation. In situ PL spectroscopy study reveals that the Bi─Br bonds formed in the form of Br-associated coordination can enhance the separation and transfer of photoexcited carriers during the practical reaction. As the active center, the exclusive Bi─Br covalence can benefit the benzyl-alcohol activation for producing carbon-centered radicals. As a result, the Cs3Bi2Br9 with this atomic coordination achieves a conversion ratio of 97.9% for benzyl alcohol and selectivity of 99.6% for aldehydes, which are 56.9- and 1.54-fold higher than that of Cs3Bi2Cl9. Combined with quasi-in situ EPR, in situ ATR-FTIR spectra, and DFT calculation, the conversion of C6H5-CH2OH to C6H5-CH2* at Br-related coordination is revealed to be a determining step, which can be accelerated via halogen-site regulation for enhancing selectivity and photocatalytic efficiency. The mechanistic insights of this research elucidate how halogen-site regulation in favor of charge transfer and molecule activation toward efficient and selective oxidation of benzyl alcohol.
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Affiliation(s)
- Ben Lei
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Wen Cui
- College of Resources and Environmental Engineering, Guizhou University, Guiyang, 550025, China
| | - Jianping Sheng
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Fengyi Zhong
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Fan Dong
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
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8
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Yu G, Huang Y, Khan D, Sui Y, Wang S, Yang X, Zhou W, Chang K, Tang J, Chen W, Han P, Tang Z. RbPbI 3 Seed Embedding in PbI 2 Substrate Tailors the Facet Orientation and Crystallization Kinetics of Perovskites. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307219. [PMID: 37882353 DOI: 10.1002/smll.202307219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/05/2023] [Indexed: 10/27/2023]
Abstract
High power conversion efficiencies (PCEs) in perovskite solar cells (PSCs) have always been awe-inspiring, but perovskite films scalability is an exacting precondition for PSCs commercial deployment, generally unachievable through the antisolvent technique. On the contrary, in the two-step sequential method, the perovskite's uncontrolled crystallization and unnecessary PbI2 residue impede the device's performance. These two issues motivated to empower the PbI2 substrate with orthorhombic RbPbI3 crystal seeds, which act as grown nuclei and develop orientated perovskites lattice stacks, improving the perovskite films morphologically and reducing the PbI2 content in eventual perovskite films. Thence, achieving a PCE of 24.17% with suppressed voltage losses and an impressive life span of 1140 h in the open air.
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Affiliation(s)
- Guoping Yu
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Pingshan, Shenzhen, 518118, China
| | - Yuanmei Huang
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Pingshan, Shenzhen, 518118, China
| | - Danish Khan
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Pingshan, Shenzhen, 518118, China
| | - Yujie Sui
- The College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100000, China
| | - Shuanglin Wang
- The College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100000, China
| | - Xiqi Yang
- The College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100000, China
| | - Wencai Zhou
- The College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100000, China
| | - Kai Chang
- State Key Laboratory of Organic Electronics and Information Displays, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Institute of Advanced Materials (IAM), Nanjing University of Posts & Telecommunications, 9 Wenyuan Road, Nanjing, 210023, China
| | - Jun Tang
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Pingshan, Shenzhen, 518118, China
| | - Wei Chen
- Shenzhen Key Laboratory of Ultraintense Laser and Advanced Material Technology, Center for Advanced Material Diagnostic Technology, and College of Engineering Physics, Shenzhen Technology University, Lantian Road 3002, Pingshan, Shenzhen, 518118, China
| | - Peigang Han
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Pingshan, Shenzhen, 518118, China
| | - Zeguo Tang
- College of New Materials and New Energies, Shenzhen Technology University, Lantian Road 3002, Pingshan, Shenzhen, 518118, China
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9
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Elawad M, Elbashir AA, Sajid M, John KI, Nimir H, Yang L, Ziyada AK, Osman A, Rajab F. Metal complex as p-type dopant-based organic spiro-OMeTAD hole-transporting material for free-Li-TFSI perovskite solar cells. J Chem Phys 2024; 160:044707. [PMID: 38284656 DOI: 10.1063/5.0176351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 01/05/2024] [Indexed: 01/30/2024] Open
Abstract
Lithium bis(fluorosulfonyl)imide (Li-TFSI) is an efficient p-dopant that has been used to enhance the conductivity of perovskite solar cells (PSCs). However, the performance of the corresponding devices is still not satisfactory due to the impact of Li-TFSI on the fill factor and the short-circuit current density of these PSCs. Herein, a new Mn complex [(Mn(Me-tpen)(ClO4)2-)]2+ was introduced as a p-type dopant into spiro-OMeTAD and was successfully applied as a hole transport material (HTM) for PSCs. Analytical studies used for device characterization included scanning electron microscopy, UV-Vis spectroscopy, current-voltage (IV) characteristics, incident photon to current efficiency, power conversion efficiency (PCE), and electrochemical impedance spectroscopy. The UV-Vis spectra displayed oxidation in the HTM by the addition of a dopant. Moreover, the movement of electrons from the higher orbital of the spiro-OMeTAD to the dopant stimulates the generation of the hole carriers in the HTM, enhancing its conductivity with outstanding long-term stability under mild conditions in a humid (RH ∼ 30%) environment. The incorporation of the Mn complex into the composite improved the material's properties and the stability of the fabricated devices. The Mn complex as a p-type dopant for spiro-OMeTAD exhibits a perceptible PCE of 16.39% with an enhanced conductivity of 98.13%. This finding may pave a rational way for developing efficient and stable PSCs in real environments.
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Affiliation(s)
- Mohammed Elawad
- Department of Chemistry, Faculty of Science, Omdurman Islamic University, P.O. Box 382, Omdurman, Sudan
| | - Abdalla A Elbashir
- Department of Chemistry, College of Science, King Faisal University, Al-Hofuf, Al-Ahsa 31982, Saudi Arabia
| | - Muhammad Sajid
- Faculty of Materials and Chemical Engineering, Yibin University, 64400 Yibin, Sichuan, China
- Department of Chemical Engineering, University of Gujrat, Gujrat 50700, Pakistan
| | - Kingsley Igenepo John
- Department of Chemical Engineering, University of Gujrat, Gujrat 50700, Pakistan
- Lab of Department of Pure and Applied Chemistry, College of Natural Sciences, Veritas University Abuja, PMB 5171, Abuja, Nigeria
| | - Hassan Nimir
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, P.O. Box 2713, Doha, State of Qatar
| | - Li Yang
- Faculty of Materials and Chemical Engineering, Yibin University, 64400 Yibin, Sichuan, China
| | - Abobakr K Ziyada
- Department of General Studies, Jubail Industrial College, P.O. Box 10099, Jubail Industrial City 31961, Saudi Arabia
| | - Abdelbagi Osman
- Department of Chemical Engineering, College of Engineering, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
| | - Fahd Rajab
- Department of Chemical Engineering, College of Engineering, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
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10
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Dey K, Ghosh D, Pilot M, Pering SR, Roose B, Deswal P, Senanayak SP, Cameron PJ, Islam MS, Stranks SD. Substitution of lead with tin suppresses ionic transport in halide perovskite optoelectronics. ENERGY & ENVIRONMENTAL SCIENCE 2024; 17:760-769. [PMID: 38269299 PMCID: PMC10805128 DOI: 10.1039/d3ee03772j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 11/23/2023] [Indexed: 01/26/2024]
Abstract
Despite the rapid rise in the performance of a variety of perovskite optoelectronic devices with vertical charge transport, the effects of ion migration remain a common and longstanding Achilles' heel limiting the long-term operational stability of lead halide perovskite devices. However, there is still limited understanding of the impact of tin (Sn) substitution on the ion dynamics of lead (Pb) halide perovskites. Here, we employ scan-rate-dependent current-voltage measurements on Pb and mixed Pb-Sn perovskite solar cells to show that short circuit current losses at lower scan rates, which can be traced to the presence of mobile ions, are present in both kinds of perovskites. To understand the kinetics of ion migration, we carry out scan-rate-dependent hysteresis analyses and temperature-dependent impedance spectroscopy measurements, which demonstrate suppressed ion migration in Pb-Sn devices compared to their Pb-only analogues. By linking these experimental observations to first-principles calculations on mixed Pb-Sn perovskites, we reveal the key role played by Sn vacancies in increasing the iodide ion migration barrier due to local structural distortions. These results highlight the beneficial effect of Sn substitution in mitigating undesirable ion migration in halide perovskites, with potential implications for future device development.
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Affiliation(s)
- Krishanu Dey
- Cavendish Laboratory, University of Cambridge Cambridge UK
| | - Dibyajyoti Ghosh
- Department of Materials Science and Engineering and Department of Chemistry, Indian Institute of Technology Delhi Hauz Khas India
| | | | - Samuel R Pering
- Department of Materials, Loughborough University Loughborough UK
| | - Bart Roose
- Department of Chemical Engineering and Biotechnology, University of Cambridge Cambridge UK
| | - Priyanka Deswal
- Department of Physics, Indian Institute of Technology Delhi Hauz Khas India
| | - Satyaprasad P Senanayak
- Nanoelectronics and Device Physics Lab,School of Physical Sciences, National Institute of Science Education and Research, HBNI, Jatni India
| | | | | | - Samuel D Stranks
- Cavendish Laboratory, University of Cambridge Cambridge UK
- Department of Chemical Engineering and Biotechnology, University of Cambridge Cambridge UK
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11
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Bechir MB, Alresheedi F. Growth methods' effect on the physical characteristics of CsPbBr 3 single crystal. Phys Chem Chem Phys 2024; 26:1274-1283. [PMID: 38105672 DOI: 10.1039/d3cp04645a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
This study offers an extensive exploration into approaches for cultivating CsPbBr3 SCs using inverse temperature crystallization (ITC), with a specific focus on seed-induced (method (1)) and nucleation-mediated (method (2)) growth techniques. Our findings reveal that leveraging seed-assisted growth at lower temperatures yields noteworthy enhancements in the material's optical and electrical behaviors, outperforming the outcomes achieved through nucleation-driven growth. Concretely, through the employment of the space charge limited current (SCLC) technique, an evident contrast emerges in the trap-populated threshold voltage between the seed-facilitated crystal (SC1) (measuring 0.309 V) and its nucleation-facilitated counterpart (SC2) (measuring 1.513 V), consequently giving rise to discernable dissimilarities in trap density assessments. Evidence from temperature-dependent analysis of space charge limited currents substantiates these findings, revealing trap density values of 8.81 × 109 cm-3 for SC1, juxtaposed with 2.08 × 1010 cm-3 for SC2. Additionally, the SC1 displays a notably diminished trap energy level. Furthermore, the investigation underscores the affirmative influence of method (1) at lower temperatures on the optical and crystalline characteristics of the substance. This effect is evidenced by enhanced photoluminescence (PL) reactions and reduced lattice strain (Ls), as determined through X-ray diffraction (XRD) techniques. Moreover, the research establishes the substantial impact of this enhanced crystallization technique on the photodetector (PD) attributes of the crystal. This effect induces elevated levels of detectivity and responsivity for method (1).
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Affiliation(s)
- Mohamed Ben Bechir
- Laboratory of Spectroscopic and Optical Characterization of Materials (LaSCOM), Faculty of Sciences, University of Sfax, BP1171 - 3000 Sfax, Tunisia.
| | - Faisal Alresheedi
- Department of Physics, College of Science, Qassim University, Buraidah 51452, Saudi Arabia
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12
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Ahn N, Choi M. Towards Long-Term Stable Perovskite Solar Cells: Degradation Mechanisms and Stabilization Techniques. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306110. [PMID: 37997198 PMCID: PMC10811515 DOI: 10.1002/advs.202306110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2023] [Revised: 10/22/2023] [Indexed: 11/25/2023]
Abstract
It is certain that perovskite materials must be a game-changer in the solar industry as long as their stability reaches a level comparable with the lifetime of a commercialized Si photovoltaic. However, the operational stability of perovskite solar cells and modules still remains unresolved, especially when devices operate in practical energy-harvesting modes represented by maximum power point tracking under 1 sun illumination at ambient conditions. This review article covers from fundamental aspects of perovskite instability including chemical decomposition pathways under light soaking and electrical bias, to recent advances and techniques that effectively prevent such degradation of perovskite solar cells and modules. In particular, fundamental causes for permanent degradation due to ion migration and trapped charges are overviewed and explain their interplay between ions and charges. Based on the degradation mechanism, recent advances on the strategies are discussed to slow down the degradation during operation for a practical use of perovskite-based solar devices.
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Affiliation(s)
- Namyoung Ahn
- Chemistry DivisionLos Alamos National LaboratoryLos AlamosNM87544USA
| | - Mansoo Choi
- Global Frontier Center for Multiscale Energy SystemsSeoul National UniversitySeoul08826Republic of Korea
- Department of Mechanical EngineeringSeoul National UniversitySeoul08826Republic of Korea
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13
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Chen J, Lou YH, Wang ZK. Characterizing Spatial and Energetic Distributions of Trap States Toward Highly Efficient Perovskite Photovoltaics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2305064. [PMID: 37635401 DOI: 10.1002/smll.202305064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 07/15/2023] [Indexed: 08/29/2023]
Abstract
Due to their greater opt electric performance, perovskite photovoltaics (PVs) present huge potential to be commercialized. Perovskite PV's high theoretical efficiency expands the available development area. The passivation of defects in perovskite films is crucial for approaching the theoretical limit. In addition to creating efficient passivation techniques, it is essential to direct the passivation approach by getting precise and real-time information on the trap states through measurements. Therefore, it is necessary to establish quantitative characterization methods for the trap states in energy and 3D spaces. The authors cover the characterization of the spatial and energy distributions of trap states in this article with an eye toward high-efficiency perovskite photovoltaics. After going over the strategies that have been created for characterizing and evaluating trap states, the authors will concentrate on how to direct the creative development of characterization techniques for trap states assessment and highlight the opportunities and challenges of future development. The 3D space and energy distribution mappings of trap states are anticipated to be realized. The review will give key guiding importance for further approaching the theoretical efficiency of perovskite photovoltaics, offering some future research direction and technological assistance for the development of appropriate targeted passivation technologies.
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Affiliation(s)
- Jing Chen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
| | - Yan-Hui Lou
- College of Energy, Soochow Institute for Energy and Materials Innovations, Soochow University, Suzhou, 215006, China
| | - Zhao-Kui Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, 215123, China
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14
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Wang S, Yang T, Yang Y, Du Y, Huang W, Cheng L, Li H, Wang P, Wang Y, Zhang Y, Ma C, Liu P, Zhao G, Ding Z, Liu SF, Zhao K. In Situ Self-Elimination of Defects via Controlled Perovskite Crystallization Dynamics for High-Performance Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2305314. [PMID: 37652150 DOI: 10.1002/adma.202305314] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Revised: 08/26/2023] [Indexed: 09/02/2023]
Abstract
Understanding and controlling crystallization is crucial for high-quality perovskite films and efficient solar cells. Herein, the issue of defects in formamidinium lead iodide (FAPbI3 ) formation is addressed, focusing on the role of intermediates. A comprehensive picture of structural and carrier evolution during crystallization is demonstrated using in situ grazing-incidence wide-angle X-ray scattering, ultraviolet-visible spectroscopy and photoluminescence spectroscopy. Three crystallization stages are identified: precursors to the δ-FAPbI3 intermediate, then to α-FAPbI3 , where defects spontaneously emerge. A hydrogen-sulfate-based ionic liquid additive is found to enable the phase-conversion pathway of precursors → solvated intermediates → α-FAPbI3 , during which the spontaneous generation of δ-FAPbI3 can be effectively circumvented. This additive extends the initial growth kinetics and facilitates solvent-FA+ ion exchange, which results in the self-elimination of defects during crystallization. Therefore, the improved crystallization dynamics lead to larger grain sizes and fewer defects within thin films. Ultimately, the improved perovskite crystallization dynamics enable high-performance solar cells, achieving impressive efficiencies of 25.14% at 300 K and 26.12% at 240 K. This breakthrough might open up a new era of application for the emerging perovskite photovoltaic technology to low-temperature environments such as near-space and polar regions.
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Affiliation(s)
- Shiqiang Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Tinghuan Yang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Yingguo Yang
- Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201204, Shanghai, China
- School of Microelectronics, Fudan University, Shanghai, 200433, China
| | - Yachao Du
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Wenliang Huang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Liwei Cheng
- Shanghai Synchrotron Radiation Facility (SSRF), Zhangjiang Lab, Shanghai Advanced Research Institute, Chinese Academy of Sciences, 201204, Shanghai, China
| | - Haojin Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Peijun Wang
- Dalian National Laboratory for Clean Energy; iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China
| | - Yajie Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Yi Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Chuang Ma
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Pengchi Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Guangtao Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Zicheng Ding
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
| | - Shengzhong Frank Liu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
- Dalian National Laboratory for Clean Energy; iChEM, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China
| | - Kui Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education; Shaanxi Key Laboratory for Advanced Energy Devices;, Shaanxi Engineering Lab for Advanced Energy Technology, School of Materials Science and Engineering, Shaanxi Normal University, 710119, Xi'an, China
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15
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Moradi S, Kundu S, Awais M, Haruta Y, Nguyen HD, Zhang D, Tan F, Saidaminov MI. High-Throughput Exploration of Triple-Cation Perovskites via All-in-One Compositionally-Graded Films. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2301037. [PMID: 37330659 DOI: 10.1002/smll.202301037] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 05/22/2023] [Indexed: 06/19/2023]
Abstract
Many devices heavily rely on combinatorial material optimization. However, new material alloys are classically developed by studying only a fraction of giant chemical space, while many intermediate compositions remain unmade in light of the lack of methods to synthesize gapless material libraries. Here report a high-throughput all-in-one material platform to obtain and study compositionally-tunable alloys from solution is reported. This strategy is applied to make all Csx MAy FAz PbI3 perovskite alloys (MA and FA stand for methylammonium and formamidinium, respectively), in less than 10 min, on a single film, on which 520 unique alloys are then studied. Through stability mapping of all these alloys in air supersaturated with moisture, a range of targeted perovskites are found, which are then chosen to make efficient and stable solar cells in relaxed fabrication conditions, in ambient air. This all-in-one platform provides access to an unprecedented library of compositional space with no unmade alloys, and hence aids in a comprehensive accelerated discovery of efficient energy materials.
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Affiliation(s)
- Shahram Moradi
- Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Soumya Kundu
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Muhammad Awais
- Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Yuki Haruta
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Hai-Dang Nguyen
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Dongyang Zhang
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
| | - Furui Tan
- Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng, 475004, P. R. China
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
- Department of Chemistry, University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
- Centre for Advanced Materials and Related Technologies (CAMTEC), University of Victoria, 3800 Finnerty Rd, Victoria, BC, V8P 5C2, Canada
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16
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Wang R, Li X, Qi J, Su C, Yang J, Yang S, Yuan M, He T. Lattice Strain Regulation Enables High-Performance Formamidinium Perovskite Photovoltaics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2304149. [PMID: 37326208 DOI: 10.1002/adma.202304149] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/14/2023] [Indexed: 06/17/2023]
Abstract
Formamidinium lead iodide (FAPbI3 ) perovskite possesses an ideal optical bandgap and is a potential material for fabricating the most efficient single-junction perovskite solar cells (PSCs). Nevertheless, large formamidinium (FA) cations result in residual lattice strain, which reduces the power conversion efficiency (PCE) and operational stability of PSCs. Herein, the modulation of lattice strain in FAPbI3 crystals via a π-conjugated organic amine, i.e., 4-pyrene oxy butylamine (PYBA), is proposed. PYBA pairs at the grain boundary serve as a template for the crystallization of FAPbI3 perovskite, thereby inducing a highly oriented crystal and a pure α-phase film. The PYBA pairs with strong π-π interactions provide a solid fulcrum for external compression strain, thus compensating for the inherent tension strain of FAPbI3 crystals. The strain release elevates the valence band of the perovskite crystals, thereby decreasing the bandgap and trap density. Consequently, the PYBA-regulated FAPbI3 PSC achieves an excellent PCE of 24.76%. Moreover, the resulting device exhibits improves operational stability and maintains over 80% of its initial PCE after 1500 h under maximum power point tracking conditions.
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Affiliation(s)
- Rui Wang
- Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, P. R. China
| | - Xinhao Li
- Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, P. R. China
| | - Jiahui Qi
- Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, P. R. China
| | - Chao Su
- Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, P. R. China
| | - Jien Yang
- School of Materials Science and Engineering, Henan Normal University, Xinxiang, 453007, P. R. China
| | - Shaopeng Yang
- Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, P. R. China
- Province-Ministry Co-construction Collaborative Innovation Center of Hebei Photovoltaic Technology, Hebei University, Baoding, 071002, P. R. China
| | - Mingjian Yuan
- Department of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Tingwei He
- Hebei Key Laboratory of Optic-electronic Information and Materials, College of Physics Science and Technology, Hebei University, Baoding, 071002, P. R. China
- Province-Ministry Co-construction Collaborative Innovation Center of Hebei Photovoltaic Technology, Hebei University, Baoding, 071002, P. R. China
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17
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Bautista-Quijano JR, Telschow O, Paulus F, Vaynzof Y. Solvent-antisolvent interactions in metal halide perovskites. Chem Commun (Camb) 2023; 59:10588-10603. [PMID: 37578354 PMCID: PMC10470408 DOI: 10.1039/d3cc02090h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 07/10/2023] [Indexed: 08/15/2023]
Abstract
The fabrication of metal halide perovskite films using the solvent-engineering method is increasingly common. In this method, the crystallisation of the perovskite layer is triggered by the application of an antisolvent during the spin-coating of a perovskite precursor solution. Herein, we introduce the current state of understanding of the processes involved in the crystallisation of perovskite layers formed by solvent engineering, focusing in particular on the role of antisolvent properties and solvent-antisolvent interactions. By considering the impact of the Hansen solubility parameters, we propose guidelines for selecting the appropriate antisolvent and outline open questions and future research directions for the fabrication of perovskite films by this method.
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Affiliation(s)
- Jose Roberto Bautista-Quijano
- Chair for Emerging Electronic Technologies, Technical University Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
- Leibniz-Institute for Solid State and Materials Research Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
| | - Oscar Telschow
- Chair for Emerging Electronic Technologies, Technical University Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
- Leibniz-Institute for Solid State and Materials Research Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
| | - Fabian Paulus
- Leibniz-Institute for Solid State and Materials Research Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
- Center for Advancing Electronics Dresden, Technical University of Dresden, Helmholtz Str. 18, 01069, Dresden, Germany
| | - Yana Vaynzof
- Chair for Emerging Electronic Technologies, Technical University Dresden, Nöthnitzer Str. 61, 01187 Dresden, Germany.
- Leibniz-Institute for Solid State and Materials Research Dresden, Helmholtzstraße 20, 01069 Dresden, Germany
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18
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Sheng W, He J, Yang J, Cai Q, Xiao S, Zhong Y, Tan L, Chen Y. Multifunctional Metal-Organic Frameworks Capsules Modulate Reactivity of Lead Iodide toward Efficient Perovskite Solar Cells with UV Resistance. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2301852. [PMID: 37087113 DOI: 10.1002/adma.202301852] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 04/20/2023] [Indexed: 05/03/2023]
Abstract
The two-step sequential deposition process is demonstrated as a reliable technology for the fabrication of efficient perovskite solar cells (PVSCs). However, the complete conversion of dense PbI2 to perovskite in planar PVSCs is tough without mesoporous titanium dioxide as support. Herein, multifunctional capsules consisting of zeolitic imidazolate framework-8 (ZIF-8) encapsulant and formamidinium iodide (FAI) are introduced between tin oxide (SnO2 ) and lead iodide (PbI2 ) layer. Intriguingly, the capsule dopant interlayer benefits the formation of porous PbI2 film due to the porous nanostructure of ZIF-8 that is favorable for the subsequent intercalation reaction. Furthermore, the constituent of the perovskite precursor in ZIF-8 pores can convert into the crystal nuclei of perovskite by reacting with PbI2 first, thereby promoting further perovskite crystallization. Significantly, the incorporation of ZIF-8 can enhance the resistance of perovskite against UV illumination due to down-conversion effect. Consequently, the modified device achieves a champion power conversion efficiency (PCE) of 24.08% and displays enhanced UV stability, which can sustain 83% of its original PCE under 365 nm UV illumination for 300 h. Moreover, the unencapsulated device maintains 90% of initial PCE after 1500 h storage in dark ambient conditions with a relative humidity range of 50%-70%.
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Affiliation(s)
- Wangping Sheng
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Jiacheng He
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Jia Yang
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Qianqian Cai
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Shuqin Xiao
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Yang Zhong
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
| | - Licheng Tan
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Peking University Yangtze Delta Insititute of Optoelectronics, Nantong, 226010, China
| | - Yiwang Chen
- College of Chemistry and Chemical Engineering/Institute of Polymers and Energy Chemistry (IPEC), Nanchang University, 999 Xuefu Avenue, Nanchang, 330031, China
- Peking University Yangtze Delta Insititute of Optoelectronics, Nantong, 226010, China
- National Engineering Research Center for Carbohydrate Synthesis/Key Lab of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education, Jiangxi Normal University, 99 Ziyang Avenue, Nanchang, 330022, China
- College of Chemistry and Chemical Engineering, Gannan Normal University, Ganzhou, 341000, China
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19
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Chang J, Feng E, Li H, Ding Y, Long C, Gao Y, Yang Y, Yi C, Zheng Z, Yang J. Crystallization and Orientation Modulation Enable Highly Efficient Doctor-Bladed Perovskite Solar Cells. NANO-MICRO LETTERS 2023; 15:164. [PMID: 37386337 PMCID: PMC10310680 DOI: 10.1007/s40820-023-01138-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 05/29/2023] [Indexed: 07/01/2023]
Abstract
With the rapid rise in perovskite solar cells (PSCs) performance, it is imperative to develop scalable fabrication techniques to accelerate potential commercialization. However, the power conversion efficiencies (PCEs) of PSCs fabricated via scalable two-step sequential deposition lag far behind the state-of-the-art spin-coated ones. Herein, the additive methylammonium chloride (MACl) is introduced to modulate the crystallization and orientation of a two-step sequential doctor-bladed perovskite film in ambient conditions. MACl can significantly improve perovskite film quality and increase grain size and crystallinity, thus decreasing trap density and suppressing nonradiative recombination. Meanwhile, MACl also promotes the preferred face-up orientation of the (100) plane of perovskite film, which is more conducive to the transport and collection of carriers, thereby significantly improving the fill factor. As a result, a champion PCE of 23.14% and excellent long-term stability are achieved for PSCs based on the structure of ITO/SnO2/FA1-xMAxPb(I1-yBry)3/Spiro-OMeTAD/Ag. The superior PCEs of 21.20% and 17.54% are achieved for 1.03 cm2 PSC and 10.93 cm2 mini-module, respectively. These results represent substantial progress in large-scale two-step sequential deposition of high-performance PSCs for practical applications.
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Affiliation(s)
- Jianhui Chang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, Hunan, People's Republic of China
| | - Erming Feng
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, Hunan, People's Republic of China
| | - Hengyue Li
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, Hunan, People's Republic of China
| | - Yang Ding
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, Hunan, People's Republic of China
| | - Caoyu Long
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, Hunan, People's Republic of China
| | - Yuanji Gao
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, Hunan, People's Republic of China
| | - Yingguo Yang
- Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201204, People's Republic of China
| | - Chenyi Yi
- Department of Electrical Engineering, Tsinghua University, Beijing, 100084, People's Republic of China
| | - Zijian Zheng
- Department of Applied Biology and Chemical Technology, Faculty of Science, The Hong Kong Polytechnic University, Hong Kong, 999077, People's Republic of China
| | - Junliang Yang
- Hunan Key Laboratory of Nanophotonics and Devices, School of Physics and Electronics, Central South University, Changsha, 410083, Hunan, People's Republic of China.
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20
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Ma W, Zhang Z, Liu Y, Gao H, Mao Y. Highly efficient and stable quasi two-dimensional perovskite solar cells via synergistic effect of dual additives. J Colloid Interface Sci 2023; 646:922-931. [PMID: 37235937 DOI: 10.1016/j.jcis.2023.05.132] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 05/28/2023]
Abstract
Recently, quasi two-dimensional (Q-2D) perovskites with alternating cations in the interlayer space (ACI) have attracted more attentions owing to their elevated stability compared with three-dimensional (3D) analogs. While the efficiency of the devices derived from Q-2D perovskites is much smaller than that based on 3D perovskites. Here, we utilized urea and methoxyamine hydrochloride (MOAH) dual additives to acquire high quality Q-2D ACI perovskite GA(MA)5Pb5I16 (GA = guanidinium, MA = methylammonium) films. The efficiency of the perovskite solar cells (PSCs) derived from the Q-2D perovskite films induced by the synergistic effect of urea and MOAH dual additives increases to 20.32% from 17.21% for the devices without additive. This efficiency enhancement could be attributed to the enlarged grain size, improved crystallinity, optimized quantum well thickness distribution, and reduced trap states of the perovskite films. Moreover, the solar cells with dual additives present improved stability. The efficiency of devices with dual additives holds 95% of the original value after storage for 1600 h in ambient air. These results prove that the synergistic effect of urea and MOAH is an effective method to achieve highly efficient and stable Q-2D PSCs.
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Affiliation(s)
- Wenbo Ma
- School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Zhenlong Zhang
- School of Physics and Electronics, Henan University, Kaifeng 475004, China.
| | - Yuefeng Liu
- School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Huiping Gao
- School of Physics and Electronics, Henan University, Kaifeng 475004, China
| | - Yanli Mao
- School of Physics and Electronics, Henan University, Kaifeng 475004, China; International Joint Research Laboratory of New Energy Materials and Devices of Henan Province, Kaifeng 475004, China.
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21
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Gao F, Zhao Q. Facet Engineering: A Promising Pathway toward Highly Efficient and Stable Perovskite Photovoltaics. J Phys Chem Lett 2023; 14:4409-4418. [PMID: 37140914 DOI: 10.1021/acs.jpclett.3c00709] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Perovskite solar cells are considered to be important candidates for future energy applications. The facet orientation causes anisotropy in the photoelectric and chemical properties of the surface of perovskite films and therefore might affect the photovoltaic properties and stability of the devices. Facet engineering has attracted increasing attention only recently in the perovskite solar cell community, and related deep investigation is rather rare. To date, it is still difficult to precisely regulate and directly observe perovskite films with specific crystal facets due to the limitations of solution methods and characterization technology. Consequently, the link between facet orientation and photovoltaic performance of perovskite solar cells is still controversial. Herein, we highlight the latest progress in the means of direct characterization and regulation of crystal facets and briefly analyze the existing issues and future perspectives of facet engineering in perovskite photovoltaics.
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Affiliation(s)
- Feng Gao
- State Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
| | - Qing Zhao
- State Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100084, China
- Yangtze Delta Institute of Optoelectronics, Peking University, Nantong 226010, China
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22
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Wu S, Zhang J, Qin M, Li F, Deng X, Lu X, Li WJ, Jen AKY. Manipulating Crystallographic Orientation via Cross-Linkable Ligand for Efficient and Stable Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2207189. [PMID: 36760026 DOI: 10.1002/smll.202207189] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/16/2023] [Indexed: 05/11/2023]
Abstract
The crystallographic orientation of polycrystalline perovskites is found to be strongly correlated with their intrinsic properties; therefore, it can be used to effectively enhance the performance of perovskite-based devices. Here, a facile way of manipulating the facet orientation of polycrystalline perovskite films in a controllable manner is reported. By incorporating a cross-linkable organic ligand into the perovskite precursor solution, the crystal orientation disorder can be reduced in the resultant perovskite films to exhibit the prominent (001) orientation with a preferred stacking mode. Moreover, the as-formed low-dimensional perovskites (LDPs) between the organic ligand and the excess lead iodide can passivate the defects around the grain boundaries. Consequently, highly efficient p-i-n structured perovskite solar cells (PSCs) can be made in both rigid and flexible forms from modified perovskites to show high power conversion efficiencies (PCE) of 24.12% and 23.23%, respectively. The devices also exhibit superior long-term stability in a humid environment (with T90 > 1000 h) and under thermal stress (retaining 87% of its initial PCE after 1000 h). More importantly, the ligand enables the derived LDPs to be crosslinked (under 254 nm UV illumination) to demonstrate excellent mechanical bending durability in flexible devices.
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Affiliation(s)
- Shengfan Wu
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Jie Zhang
- Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Minchao Qin
- Department of Physics, The Chinese University of Hong Kong, Sha Tin, 999077, Hong Kong
| | - Fengzhu Li
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Xiang Deng
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Xinhui Lu
- Department of Physics, The Chinese University of Hong Kong, Sha Tin, 999077, Hong Kong
| | - Wen-Jung Li
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
| | - Alex K-Y Jen
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Hong Kong Institute for Clean Energy, City University of Hong Kong, Kowloon, 999077, Hong Kong
- Department of Chemistry, City University of Hong Kong, Kowloon, 999077, Hong Kong
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23
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He J, Wang S, Li X, Zhang F. Seeding Agents in Metal Halide Perovskite Solar Cells: From Material to Mechanism. CHEMSUSCHEM 2023; 16:e202202109. [PMID: 36624051 DOI: 10.1002/cssc.202202109] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/05/2023] [Indexed: 06/17/2023]
Abstract
Metal halide perovskite solar cells (PSCs) have been showing up in the commercial field, with an inspiring power conversion efficiency (PCE) of over 26 % in the laboratory. The quality of perovskite films is still a bottleneck due to the random and fast crystallization of ionic perovskite materials. Seeding agent-mediated crystallization has consistently been recognized as an efficient method for preparing bulk single crystals and high-quality films. Herein, we summarized the seeding mechanism, characterization techniques, and seeding agents working in different locations during PSC device fabrication. This Review could further facilitate researchers with a deeper understanding of seeding agents and enhance more choices for seeding crystallization to improve the performance further and the device's large-scale fabrication toward commercialization.
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Affiliation(s)
- Jun He
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Shirong Wang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Xianggao Li
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
| | - Fei Zhang
- School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, P. R. China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin, 300072, P. R. China
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24
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Kundar M, Bhandari S, Chung S, Cho K, Sharma SK, Singh R, Pal SK. Surface Passivation by Sulfur-Based 2D (TEA) 2PbI 4 for Stable and Efficient Perovskite Solar Cells. ACS OMEGA 2023; 8:12842-12852. [PMID: 37065021 PMCID: PMC10099414 DOI: 10.1021/acsomega.2c08126] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 02/14/2023] [Indexed: 06/19/2023]
Abstract
Perovskite solar cells (PSCs) with superior performance have been recognized as a potential candidate in photovoltaic technologies. However, defects in the active perovskite layer induce nonradiative recombination which restricts the performance and stability of PSCs. The construction of a thiophene-based 2D structure is one of the significant approaches for surface passivation of hybrid PSCs that may combine the benefits of the stability of 2D perovskite with the high performance of three-dimensional (3D) perovskite. Here, a sulfur-rich spacer cation 2-thiopheneethylamine iodide (TEAI) is synthesized as a passivation agent for the construction of a three-dimensional/two-dimensional (3D/2D) perovskite bilayer structure. TEAI-treated PSCs possess a much higher efficiency (20.06%) compared to the 3D perovskite (MA0.9FA0.1PbI3) devices (17.42%). Time-resolved photoluminescence and femtosecond transient absorption spectroscopy are employed to investigate the effect of surface passivation on the charge carrier dynamics of the 3D perovskite. Additionally, the stability test of TEAI-treated perovskite devices reveals significant improvement in humid (RH ∼ 46%) and thermal stability as the sulfur-based 2D (TEA)2PbI4 material self-assembles on the 3D surface, making the perovskite surface hydrophobic. Our findings provide a reliable approach to improve device stability and performance successively, paving the way for industrialization of PSCs.
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Affiliation(s)
- Milon Kundar
- School
of Physical Sciences, Indian Institute of
Technology Mandi, Kamand, Mandi, Himachal
Pradesh 175005, India
- Advanced
Materials Research Centre, Indian Institute
of Technology Mandi, Kamand, Mandi, Himachal
Pradesh 175005, India
| | - Sahil Bhandari
- School
of Physical Sciences, Indian Institute of
Technology Mandi, Kamand, Mandi, Himachal
Pradesh 175005, India
- Advanced
Materials Research Centre, Indian Institute
of Technology Mandi, Kamand, Mandi, Himachal
Pradesh 175005, India
| | - Sein Chung
- Department
of Chemical Engineering, Pohang University
of Science and Technology, Pohang 37673, South Korea
| | - Kilwon Cho
- Department
of Chemical Engineering, Pohang University
of Science and Technology, Pohang 37673, South Korea
| | - Satinder K. Sharma
- School
of Computing and Electrical Engineering (SCEE), Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175005, India
| | - Ranbir Singh
- School
of Computing and Electrical Engineering (SCEE), Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175005, India
- School
of Mechanical and Materials Engineering, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175005, India
| | - Suman Kalyan Pal
- School
of Physical Sciences, Indian Institute of
Technology Mandi, Kamand, Mandi, Himachal
Pradesh 175005, India
- Advanced
Materials Research Centre, Indian Institute
of Technology Mandi, Kamand, Mandi, Himachal
Pradesh 175005, India
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25
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Fan Y, Chen H, Liu X, Ren M, Liang Y, Wang Y, Miao Y, Chen Y, Zhao Y. Myth behind Metastable and Stable n-Hexylammonium Bromide-Based Low-Dimensional Perovskites. J Am Chem Soc 2023; 145:8209-8217. [PMID: 37002871 DOI: 10.1021/jacs.3c01684] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
In perovskite solar cells, passivating the surface or interface that contains a high concentration of defects, specifically deep-level defects, is one of the most important topics to substantially enhance the power conversion efficiency and stability of the devices. Long-chain alkylammonium bromides have been widely and commonly adapted for passivation treatment. However, the mechanism behind is still not well explored as the formation route and the exact structure of these alkylammonium bromide-based low-dimensional perovskites are unclear. Herein, we investigate the physical and chemical properties of an n-hexylammonium bromide (HABr)-based low-dimensional perovskite including both thin films and single crystals. First of all, the HA2PbBr4 perovskite film and aged single crystal demonstrate different X-ray diffraction patterns from those of the fresh as-prepared single crystal. We found that the fresh HA2PbBr4 single crystal exhibits a metastable phase as its structure changes with aging due to the relaxation of crystal lattice strains, whereas the HA2PbBr4 perovskite film is pretty stable as the aged single crystal. Upon reacting with FAPbI3, HABr can be intercalated into the FAPbI3 lattice to form a mixed-cation perovskite of HAFAPbI3Br, which is in a dynamic equilibrium of decomposition and formation. In contrast, the reaction of HABr with excess PbI2 forms a stable HA2PbI2Br2 perovskite. Based on such findings, we rationally develop a HA2PbI2Br2-passivated FACs-based perovskite by reacting HABr with excess PbI2, the photovoltaics based on which are more stable and efficient than those passivated by the HAFAPbI3Br perovskite. Our discovery paves way for a more in-depth study of bromide-containing low-dimensional perovskites and their optoelectronic applications.
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Affiliation(s)
- Yingping Fan
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Haoran Chen
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xiaomin Liu
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Meng Ren
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yugang Liang
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yao Wang
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yanfeng Miao
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuetian Chen
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yixin Zhao
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, Shanghai 200240, China
- Shanghai Non-carbon Energy Conversion and Utilization Institute, Shanghai 200240, China
- State Key Lab of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China
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26
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Pan T, Zhou W, Wei Q, Peng Z, Wang H, Jiang X, Zang Z, Li H, Yu D, Zhou Q, Pan M, Zhou W, Ning Z. Surface-Energy-Regulated Growth of α-Phase Cs 0.03 FA 0.97 PbI 3 for Highly Efficient and Stable Inverted Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2208522. [PMID: 36692303 DOI: 10.1002/adma.202208522] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 12/29/2022] [Indexed: 06/17/2023]
Abstract
Methylammonium (MA)-free formamidinium (FA)-dominated Csx FA1-x PbI3 is rising as the most promising candidate for highly efficient and stable perovskite solar cells. However, the growth of high-quality Csx FA1-x PbI3 black-phase perovskite structure without ion doping in the lattice remains a challenge. Herein, propeller-shaped halogenated tertiary ammonium is synthesized, showing high binding energy on the perovskite surface and large steric hindrance. This molecule can significantly reduce the barrier of high surface energy that suppresses the growth of the α-phase Csx FA1-x PbI3 structure. As a result, the α-phase structure can be formed at room temperature, which can further act as a seed for the growth of high-quality film. Solar cells based on the film show a record efficiency up to 23.6% for MA free Csx FA1- x PbI3 solar cells with inverted structure and excellent stability at 85 °C over 200 h.
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Affiliation(s)
- Ting Pan
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Wei Zhou
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Qi Wei
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Zijian Peng
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Hao Wang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Xianyuan Jiang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Zihao Zang
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Hansheng Li
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Danni Yu
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Qilin Zhou
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Mengling Pan
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Wenjia Zhou
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
| | - Zhijun Ning
- School of Physical Science and Technology, Shanghai Tech University, Shanghai, 201210, P. R. China
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27
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Szostak R, de Souza Gonçalves A, de Freitas JN, Marchezi PE, de Araújo FL, Tolentino HCN, Toney MF, das Chagas Marques F, Nogueira AF. In Situ and Operando Characterizations of Metal Halide Perovskite and Solar Cells: Insights from Lab-Sized Devices to Upscaling Processes. Chem Rev 2023; 123:3160-3236. [PMID: 36877871 DOI: 10.1021/acs.chemrev.2c00382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Abstract
The performance and stability of metal halide perovskite solar cells strongly depend on precursor materials and deposition methods adopted during the perovskite layer preparation. There are often a number of different formation pathways available when preparing perovskite films. Since the precise pathway and intermediary mechanisms affect the resulting properties of the cells, in situ studies have been conducted to unravel the mechanisms involved in the formation and evolution of perovskite phases. These studies contributed to the development of procedures to improve the structural, morphological, and optoelectronic properties of the films and to move beyond spin-coating, with the use of scalable techniques. To explore the performance and degradation of devices, operando studies have been conducted on solar cells subjected to normal operating conditions, or stressed with humidity, high temperatures, and light radiation. This review presents an update of studies conducted in situ using a wide range of structural, imaging, and spectroscopic techniques, involving the formation/degradation of halide perovskites. Operando studies are also addressed, emphasizing the latest degradation results for perovskite solar cells. These works demonstrate the importance of in situ and operando studies to achieve the level of stability required for scale-up and consequent commercial deployment of these cells.
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Affiliation(s)
- Rodrigo Szostak
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-100 Campinas, SP, Brazil
| | - Agnaldo de Souza Gonçalves
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
- Gleb Wataghin Institute of Physics, University of Campinas (UNICAMP), 13083-859 Campinas, SP, Brazil
| | - Jilian Nei de Freitas
- Center for Information Technology Renato Archer (CTI), 13069-901 Campinas, SP, Brazil
| | - Paulo E Marchezi
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
- Department of Engineering and Physics, Karlstad University, 651 88 Karlstad, Sweden
| | - Francineide Lopes de Araújo
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
| | - Hélio Cesar Nogueira Tolentino
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), 13083-100 Campinas, SP, Brazil
| | - Michael F Toney
- Department of Chemical & Biological Engineering, and Renewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, United States
| | | | - Ana Flavia Nogueira
- Laboratório de Nanotecnologia e Energia Solar (LNES), University of Campinas (UNICAMP), 13083-970, Campinas, SP, Brazil
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28
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Zhang Z, Fu J, Chen Q, Zhang J, Huang Z, Cao J, Ji W, Zhang L, Wang A, Zhou Y, Dong B, Song B. Dopant-Free Polymer Hole Transport Materials for Highly Stable and Efficient CsPbI 3 Perovskite Solar Cells. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206952. [PMID: 36541718 DOI: 10.1002/smll.202206952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 12/02/2022] [Indexed: 06/17/2023]
Abstract
All-inorganic perovskite CsPbI3 contains no volatile organic components and is a thermally stable photoactive material for wide-bandgap perovskite solar cells (PSCs); however, CsPbI3 readily undergoes undesirable phase transitions due to the hygroscopic nature of the ionic dopants used in commonly used hole transport materials. In the current study, the popular donor material PM6 in organic solar cells is used as a hole transport layer (HTL). The benzodithiophene-based backbone-conjugated polymer requires no dopant and leads to a higher power conversion efficiency (PCE) than 2,2',7,7'-tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9'-spirobifluorene (Spiro-OMeTAD). Moreover, PM6 also shows priorities in hole mobility, hydrophobicity, cascade energy level alignment, and even defect passivation of perovskite films. With PM6 as the dopant-free HTL, the PSCs achieve a champion PCE of 18.27% with a competitive fill factor of 82.8%. Notably, the present PCE is based on the dopant-free HTL in CsPbI3 PSCs reported thus far. The PSCs with PM6 as the HTL retain over 90% of the initial PCE stored in a glovebox filled with N2 for 3000 h. In contrast, the PSCs with Spiro-OMeTAD as the HTL maintain ≈80% of the initial PCE under the same conditions.
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Affiliation(s)
- Zelong Zhang
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Jianfei Fu
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Qiaoyun Chen
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Jiajia Zhang
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Zhezhi Huang
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Ji Cao
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Wenxi Ji
- Beijing Research Institute of Chemical Industry China Petroleum & Chemical Corporation, Beijing, 100013, China
| | - Longgui Zhang
- Beijing Research Institute of Chemical Industry China Petroleum & Chemical Corporation, Beijing, 100013, China
| | - Ailian Wang
- Beijing Research Institute of Chemical Industry China Petroleum & Chemical Corporation, Beijing, 100013, China
| | - Yi Zhou
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Bin Dong
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou, 215123, China
| | - Bo Song
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
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29
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Liu Y, Che G, Cui W, Pang B, Sun Q, Yu L, Dong L. Enhanced charge extraction for all-inorganic perovskite solar cells by graphene oxide quantum dots modified TiO2 layer. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2238-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
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30
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Zheng H, Zhang R, Wu X, Zhang Q, Wu Z, Wong WPD, Chen J, Xu QH, Loh KP. Strain-Driven Solid-Solid Crystal Conversion in Chiral Hybrid Pseudo-Perovskites with Paramagnetic-to-Ferromagnetic Transition. J Am Chem Soc 2023; 145:3569-3576. [PMID: 36727858 DOI: 10.1021/jacs.2c12525] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Hybrid organic-inorganic perovskites (HOIPs) are promising stimuli-responsive materials (SPMs) owing to their molecular softness and tailorable structural dimensionality. The design of mechanically responsive HOIPs requires an in-depth understanding of how lattice strain induces intermolecular rearrangement that impacts physical properties. While chirality transfer from an organic cation to an inorganic lattice is known to influence chiral-optical properties, its effect on strain-induced phase conversion has not been explored. As opposed to achiral or racemic organic cations, chiral organic cations can potentially afford a new dimension in strain-responsive structural change. Herein, we demonstrate that mechanical strain induces a solid phase crystal conversion in chiral halide pseudo-perovskite single crystals (R/S)-(FE)2CuCl4 (FE = (4-Fluorophenyl)ethylamine) from a 0D isolated CuCl4 tetrahedral to 1D corner-sharing CuFCl5 octahedral framework via the incorporation of Cu···F interaction and N-H···F hydrogen bonding. This strain-induced crystal-to-crystal conversion involves the connection of neighboring 0D CuCl4 tetrahedra via Cu2+-Cl--Cu2+ linkages as well as the incorporation of a F-terminated organic cation as one of the X atoms in BX6 octahedra, leading to a reduced band gap and paramagnetic-to-ferromagnetic conversion. Control experiments using nonchiral or racemic perovskite analogs show the absence of such solid phase conversion. To demonstrate pressure-sensitive properties, the 0D phase is dispersed in water-soluble poly(vinyl alcohol) (PVA) polymer, which can be applied to a large-scale pressure-induced array display on fibrous Spandex substrates via a screen-printing method.
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Affiliation(s)
- Haining Zheng
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Rongrong Zhang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Xiao Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Qihan Zhang
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Zhenyue Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Walter P D Wong
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Jingsheng Chen
- Department of Materials Science and Engineering, National University of Singapore, Singapore 117575, Singapore
| | - Qing-Hua Xu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Kian Ping Loh
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou 350207, China.,Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
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31
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Li B, Shen T, Yun S. Recent progress of crystal orientation engineering in halide perovskite photovoltaics. MATERIALS HORIZONS 2023; 10:13-40. [PMID: 36415914 DOI: 10.1039/d2mh00980c] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Manipulating the crystallographic orientation of semiconductor crystals plays a vital role in fine-tuning their facet-dependent properties, such as surface properties, charge transfer properties, trap state density, and lattice strain. The success in crystal orientation engineering enables the preferential growth orientation of perovskite thin films with favorable crystal planes by precise nucleation manipulation and growth condition optimization, rendering the films with the unique optoelectronic properties to further improve the efficiency of perovskite solar cells (PSCs). However, the origin and impact of preferential crystallographic orientation of perovskite thin films on the corresponding photovoltaic performance of PSCs are still far from being well understood. Herein, we explore the crystal orientation-dependent optoelectronic properties of halide perovskites and their influence on the photovoltaic performance of PSCs. We summarize the basic strategies for crystal facet engineering in the fabrication of preferentially oriented perovskite thin films, with a focus on the oriented growth mechanism during thin film formation. Based on the above knowledge and the recent research progress in terms of crystal orientation engineering in PSCs, a brief outlook on the remaining challenges and perspectives are provided.
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Affiliation(s)
- Bo Li
- School of Materials and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, 710055, China.
| | - Ting Shen
- Department of Materials Science and Engineering, Clemson University, Clemson, SC, 29634, USA
| | - Sining Yun
- School of Materials and Engineering, Xi'an University of Architecture and Technology, Xi'an, Shaanxi, 710055, China.
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32
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Guo Q, Wang L, Yang L, Duan J, Du H, Ji G, Liu N, Zhao X, Chen C, Xu L, Gao L, Luo J, Tang J. Spectra stable deep-blue light-emitting diodes based on cryolite-like cerium(III) halides with nanosecond d-f emission. SCIENCE ADVANCES 2022; 8:eabq2148. [PMID: 36525491 PMCID: PMC9757739 DOI: 10.1126/sciadv.abq2148] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 11/14/2022] [Indexed: 06/03/2023]
Abstract
Next-generation wide color gamut displays require the development of efficient and toxic-free light-emitting materials meeting the crucial Rec. 2020 standard. With the rapid progress of green and red perovskite light-emitting diodes (PeLEDs), blue PeLEDs remain a central challenge because of the undesirable color coordinates and poor spectra stability. Here, we report Cs3CeBrxI6-x (x = 0 to 6) with the cryolite-like structure and stable and tunable color coordinates from (0.17, 0.02) to (0.15, 0.04). Further encouraged by the short exciton lifetime (26.1 ns) and high photoluminescence quantum yield (~76%), we construct Cs3CeBrxI6-x-based rare-earth LEDs via thermal evaporation. A seed layer strategy is conducted to improve the device's performance. The optimal Cs3CeI6 device achieves a maximum external quantum efficiency of 3.5% and a luminance of 470 cd m-2 with stable deep-blue color coordinates of (0.15, 0.04). Our work opens another avenue to achieving efficient and spectrally stable deep-blue LEDs.
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Affiliation(s)
- Qingxun Guo
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Liang Wang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Longbo Yang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Jiashun Duan
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Hainan Du
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Guoqi Ji
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Nian Liu
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Xue Zhao
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Chao Chen
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Ling Xu
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
| | - Liang Gao
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, P. R. China
| | - Jiajun Luo
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, P. R. China
| | - Jiang Tang
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan, Hubei 430074, P. R. China
- Optics Valley Laboratory, 1037 Luoyu Road, Wuhan, P. R. China
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33
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The Effect of Short Chain Carboxylic Acids as Additives on the Crystallization of Methylammonium Lead Triiodide (MAPI). INORGANICS 2022. [DOI: 10.3390/inorganics10110201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Due to their exceptional properties, the study of hybrid perovskite (HyP) structures and applications dominate current photovoltaic prospects. Methylammonium lead tri-iodide perovskite (MAPI) is the model compound of the HyP class of materials that, in a few years, achieved, in photovoltaics, a power conversion efficiency of 25%. The attention on HyP has recently moved to large single crystals as emerging candidates for photovoltaic application because of their improved stability and optoelectronic properties compared to polycrystalline films. To control the quality and symmetry of the large MAPI single crystals, we proposed an original method that consisted of adding short-chain carboxylic acids to the inverse temperature crystallization (ICT) of MAPI in γ-butyrolactone (GBL). The crystals were characterized by single-crystal X-ray diffraction (SC-XRD), X-ray powder diffraction (XRPD) and Raman spectroscopy. Based on SC-XRD analysis, MAPI crystals grown using acetic and trifluoroacetic acids adopt a tetragonal symmetry “I4cm”. MAPI grown in the presence of formic acid turned out to crystallize in the orthorhombic “Fmmm” space group demonstrating the acid’s effect on the crystallization of MAPI.
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34
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Recent progress in perovskite solar cells: from device to commercialization. Sci China Chem 2022. [DOI: 10.1007/s11426-022-1426-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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35
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Zhang Y, Xu L, Sun J, Wu Y, Kan Z, Zhang H, Yang L, Liu B, Dong B, Bai X, Song H. 24.11% High Performance Perovskite Solar Cells by Dual Interfacial Carrier Mobility Enhancement and Charge‐Carrier Transport Balance. ADVANCED ENERGY MATERIALS 2022; 12:2201269. [DOI: 10.1002/aenm.202201269] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Indexed: 07/31/2023]
Affiliation(s)
- Yuhong Zhang
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
| | - Lin Xu
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
| | - Jiao Sun
- Department of Cell Biology College of Basic Medical Sciences Jilin University Changchun Jilin 130021 P. R. China
| | - Yanjie Wu
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
| | - Zitong Kan
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
| | - Huan Zhang
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
| | - Long Yang
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
| | - Bin Liu
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
| | - Biao Dong
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
| | - Xue Bai
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
| | - Hongwei Song
- State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University 2699 Qianjin Street Changchun 130012 P. R. China
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36
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Cheng Q, Wang B, Huang G, Li Y, Li X, Chen J, Yue S, Li K, Zhang H, Zhang Y, Zhou H. Impact of Strain Relaxation on 2D Ruddlesden-Popper Perovskite Solar Cells. Angew Chem Int Ed Engl 2022; 61:e202208264. [PMID: 35789174 DOI: 10.1002/anie.202208264] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Indexed: 01/07/2023]
Abstract
Although the photovoltaic performance of perovskite solar cells (PSCs) has reached the commercial standards, the unsatisfactory stability limits their further application. Hydrophobic interface and encapsulation can block the damage of water and oxygen, while the instability induced by intrinsic residual strain remains inevitable. Here, the residual strain in a two-dimensional (2D) Ruddlesden-Popper (RP) perovskite film is investigated by X-ray diffraction and atomic force microscopy. It's found that the spacer cations contribute to the residual strain even though they are not in the inorganic cages. Benefited from strain relaxation, the film quality is improved, leading to suppressed recombination, promoted charge transport and enhanced efficiency. More significantly, the strain-released devices maintain 86 % of the initial efficiency after being kept in air with 85 % relative humidity (RH) for 1080 h, 82 % under maximum power point (MPP) tracking at 50 °C for 804 h and 86 % after continuous heating at 85 °C for 1080 h.
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Affiliation(s)
- Qian Cheng
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100191, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Boxin Wang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100191, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Gaosheng Huang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100191, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yanxun Li
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100191, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xing Li
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, China
| | - Jieyi Chen
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100191, China
| | - Shengli Yue
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100191, China
| | - Kang Li
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, China
| | - Hong Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100191, China
| | - Yuan Zhang
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, China
| | - Huiqiong Zhou
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100191, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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37
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Zhang H, Ren Z, Liu K, Qin M, Wu Z, Shen D, Zhang Y, Chandran HT, Hao J, Lee CS, Lu X, Zheng Z, Huang J, Li G. Controllable Heterogenous Seeding-Induced Crystallization for High-Efficiency FAPbI 3 -Based Perovskite Solar Cells Over 24. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2204366. [PMID: 35867885 DOI: 10.1002/adma.202204366] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 07/17/2022] [Indexed: 06/15/2023]
Abstract
The addition of small seeding particles into a supersaturated solution is one among the most effective approaches to obtain high-quality semiconductor materials via increased crystallization rates. However, limited study is conducted on this approach for the fabrication of perovskite solar cells. Here, a new strategy-"heterogenous seeding-induced crystallization (hetero-SiC)" to assist the growth of FAPbI3 -based perovskite is proposed. In this work, di-tert-butyl(methyl)phosphonium tetrafluoroborate is directly introduced into the precursor, which forms a low-solubility complex with PbI2 . The low-solubility complex can serve as the seed to induce crystallization of the perovskite during the solvent-evaporation process. Various in situ measurement tools are used to visualize the hetero-SiC process, which is shown to be an effective way of manipulating the nucleation and crystal growth of perovskites. The hetero-SiC process greatly improves the film quality, reduces film defects, and suppresses nonradiative recombination. A hetero-SIC proof-of-concept device exhibits outstanding performance with 24.0% power conversion efficiency (PCE), well over the control device with 22.2% PCE. Additionally, hetero-SiC perovskite solar cell (PSC) stability under light illumination is enhanced and the PSC retains 84% of its initial performance after 1400 h of light illumination.
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Affiliation(s)
- Hengkai Zhang
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Zhiwei Ren
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Kuan Liu
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Minchao Qin
- Department of Physics, The Chinese University of Hong Kong, New Territories, Hong Kong, China
| | - Zehan Wu
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Dong Shen
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Yaokang Zhang
- Laboratory for Advanced Interfacial Materials and Devices, Research Centre for Smart Wearable Technology, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Hrisheekesh Thachoth Chandran
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
| | - Jianhua Hao
- Department of Applied Physics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Chun-Sing Lee
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, Kowloon, Hong Kong, China
| | - Xinhui Lu
- Department of Physics, The Chinese University of Hong Kong, New Territories, Hong Kong, China
| | - Zijian Zheng
- Laboratory for Advanced Interfacial Materials and Devices, Research Centre for Smart Wearable Technology, Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Jinsong Huang
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Gang Li
- Department of Electronic and Information Engineering, Research Institute for Smart Energy (RISE), The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- The Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, 518057, China
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38
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Cheng Q, Wang B, Huang G, Li Y, Li X, Chen J, Yue S, Li K, Zhang H, Zhang Y, Zhou H. Impact of Strain Relaxation on 2D Ruddlesden‐Popper Perovskite Solar Cells. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Qian Cheng
- National Center for Nanoscience and Technology CAS Key Laboratory of Nanosystem and Hierarchical Fabrication No.11 ZhongGuanCun BeiYiTiao Beijing CHINA
| | - Boxin Wang
- National Center for Nanoscience and Technology CAS Key Laboratory of Nanosystem and Hierarchical Fabrication No.11 ZhongGuanCun BeiYiTiao Beijing CHINA
| | - Gaosheng Huang
- National Center for Nanoscience and Technology CAS Key Laboratory of Nanosystem and Hierarchical Fabrication No.11 ZhongGuanCun BeiYiTiao Beijing CHINA
| | - Yanxun Li
- National Center for Nanoscience and Technology CAS Key Laboratory of Nanosystem and Hierarchical Fabrication No.11 ZhongGuanCun BeiYiTiao Beijing CHINA
| | - Xing Li
- Beihang University School of Chemistry XueYuan Road No.37 Beijing CHINA
| | - Jieyi Chen
- National Center for Nanoscience and Technology CAS Key Laboratory of Nanosystem and Hierarchical Fabrication No.11 ZhongGuanCun BeiYiTiao Beijing CHINA
| | - Shengli Yue
- National Center for Nanoscience and Technology CAS Key Laboratory of Nanosystem and Hierarchical Fabrication No.11 ZhongGuanCun BeiYiTiao Beijing CHINA
| | - Kang Li
- Beihang University School of Chemistry XueYuan Road No.37 Beijing CHINA
| | - Hong Zhang
- National Center for Nanoscience and Technology CAS Key Laboratory of Nanosystem and Hierarchical Fabrication No.11 ZhongGuanCun BeiYiTiao Beijing CHINA
| | - Yuan Zhang
- Beihang University School of Chemistry XueYuan Road No.37 Beijing CHINA
| | - Huiqiong Zhou
- National Center for Nanoscience and Technology No.11 ZhongGuanCun BeiYiTiao Beijing CHINA
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39
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Chen Y, Ding X, Yang L, Wang Y, Gurti JI, Wang M, Li W, Wang X, Yang W. Small practical cluster models for perovskites based on the similarity criterion of central location environment and their applications. Phys Chem Chem Phys 2022; 24:14375-14389. [PMID: 35642957 DOI: 10.1039/d2cp00562j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Developing universal theoretical models for perovskites (often denoted as ABX3) can contribute to the rational design of novel perovskite photovoltaic materials. However, few models can be successfully applied to study the intrinsic electronic structure due to the poor accuracy and unaffordable computational cost. Herein, we report the innovative construction of small practical cluster models through the similarity criterion of the central location environment, which retains only the central A-site as the original cation while the others are substituted by Cs to keep the clusters electrically neutral. The central cation has a chemical environment similar to that of the bulk perovskite. The binding energy between A and the BX framework, geometric structures (B-X distances and B-X-B angles), and the electronic structures (the gap and the spatial distribution of HOMO and LUMO, electron distribution) of these clusters have been investigated and compared with the corresponding properties of bulk materials. The results suggest that the cluster model with twelve B-atoms suitably describes these properties. The geometric structures and gaps are closer to the bulk situations than the quasi-one-dimensional and quasi-two-dimensional cluster models with all-primitive cations, respectively. Other organic cations, such as NH3(CH2)nCH3 (n = 1, 2, and 3 for EA, PA, and BA, respectively), and (NH2)2CH (FA) can, therefore, mimic perovskite materials. Clusters with different sizes of A indicate that PA and BA will distort the quasi-cubic structures, which is consistent with the judgment of the tolerance factor of bulk materials. The reliable cluster model provides the research foundation for some basic issues of perovskites, such as vibrational spectroscopy and hydrogen bonding strength, to gain detailed insight into the interactions between A and the BX framework.
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Affiliation(s)
- Yan Chen
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China. .,School of New Energy, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China
| | - Xunlei Ding
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China. .,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China
| | - Luona Yang
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China. .,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China
| | - Yaya Wang
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China. .,School of New Energy, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China
| | - Joseph Israel Gurti
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China. .,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China
| | - Mengmeng Wang
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China. .,School of New Energy, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China
| | - Wei Li
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China. .,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China
| | - Xin Wang
- School of Mathematics and Physics, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China. .,Institute of Clusters and Low Dimensional Nanomaterials, North China Electric Power University, Beinong Road 2, Huilongguan, Beijing 102206, P. R. China
| | - Weijie Yang
- Department of Power Engineering, School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China.
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40
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Yu D, Wei Q, Li H, Xie J, Jiang X, Pan T, Wang H, Pan M, Zhou W, Liu W, Chow PCY, Ning Z. Quasi-2D Bilayer Surface Passivation for High Efficiency Narrow Bandgap Perovskite Solar Cells. Angew Chem Int Ed Engl 2022; 61:e202202346. [PMID: 35233881 DOI: 10.1002/anie.202202346] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Indexed: 11/10/2022]
Abstract
The combination of comprehensive surface passivation and effective interface carriers transfer plays a critical role in high-performance perovskite solar cells. A 2D structure is an important approach for surface passivation of perovskite film, however, its large band gap could compromise carrier transfer. Herein, we synthesize a new molecule 2-thiopheneethylamine thiocyanate (TEASCN) for the construction of bilayer quasi-2D structure precisely on a tin-lead mixed perovskite surface. This bilayer structure can passivate the perovskite surface and ensure effective carriers transfer simultaneously. As a result, the open-circuit voltage (Voc ) of the device is increased without sacrificing short-circuit current density (Jsc ), giving rise to a high certified efficiency from a credible third-party certification of narrow band gap perovskite solar cells. Furthermore, theoretical simulation indicates that the inclusion of TEASCN makes the bilayer structure thermodynamically more stable, which provides a strategy to tailor the number of layers of quasi-2D perovskite structures.
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Affiliation(s)
- Danni Yu
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Qi Wei
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Hansheng Li
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Junhan Xie
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Xianyuan Jiang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Ting Pan
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Hao Wang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Mengling Pan
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Wenjia Zhou
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Weimin Liu
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
| | - Philip C Y Chow
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam, Hong Kong, 999077, China
| | - Zhijun Ning
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai, 201210, China
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Chen C, Zhou Z, Jiang Y, Feng Y, Fang Y, Liu J, Chen M, Liu J, Gao J, Feng SP. Additive Engineering in Antisolvent for Widening the Processing Window and Promoting Perovskite Seed Formation in Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2022; 14:17348-17357. [PMID: 35389214 DOI: 10.1021/acsami.2c00954] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The chlorobenzene (CB) antisolvent is widely used to fabricate high-efficiency perovskite solar cells (PSCs). However, the narrow processing window and the strict volume ratio of a binary mixed solvent limit the fabrication of large-area and high-quality perovskite films. In this work, by systematic investigation of additives with the CB antisolvent, a universal guideline is achieved wherein a small amount of additive with a donor number between 9.0 and 27.0 kcal/mol can significantly widen the antisolvent treating time slot from 2 to 40 s while simultaneously enlarging the processor binary mixed solvent (dimethylformamide/dimethyl sulfoxide) from 7:3 to 0:10. Moreover, this process facilitates the formation of perovskite seeds as templates for perovskite crystal growth, effectively reducing the bulk defects in perovskite films. Finally, the obtained PSCs show remarkable power conversion efficiencies (PCEs) of 22.22 and 19.74% for rigid and flexible devices, respectively.
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Affiliation(s)
- Cong Chen
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China
- Institute for Advanced Materials & Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Zhiwen Zhou
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China
| | - Yue Jiang
- Institute for Advanced Materials & Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Yancong Feng
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology & Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Yating Fang
- Institute for Advanced Materials & Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Jiayan Liu
- Institute for Advanced Materials & Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Mojun Chen
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China
| | - Junming Liu
- Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
| | - Jinwei Gao
- Institute for Advanced Materials & Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou 510006, China
| | - Shien-Ping Feng
- Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong 999077, China
- Department of Advanced Design and Systems Engineering, City University of Hong Kong, Kowloon, Hong Kong 999077, China
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42
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Kumar J, Srivastava P, Bag M. Advanced Strategies to Tailor the Nucleation and Crystal Growth in Hybrid Halide Perovskite Thin Films. Front Chem 2022; 10:842924. [PMID: 35494624 PMCID: PMC9043105 DOI: 10.3389/fchem.2022.842924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Accepted: 03/15/2022] [Indexed: 11/26/2022] Open
Abstract
Remarkable improvement in the perovskite solar cell efficiency from 3.8% in 2009 to 25.5% today has not been a cakewalk. The credit goes to various device fabrication and designing techniques employed by the researchers worldwide. Even after tremendous research in the field, phenomena such as ion migration, phase segregation, and spectral instability are not clearly understood to date. One of the widely used techniques for the mitigation of ion migration is to reduce the defect density by fabricating the high-quality perovskite thin films. Therefore, understanding and controlling the perovskite crystallization and growth have become inevitably crucial. Some of the latest methods attracting attention are controlling perovskite film morphology by modulating the coating substrate temperature, antisolvent treatment, and solvent engineering. Here, the latest techniques of morphology optimization are discussed, focusing on the process of nucleation and growth. It can be noted that during the process of nucleation, the supersaturation stage can be induced faster by modifying the chemical potential of the system. The tailoring of Gibbs free energy and, hence, the chemical potential using the highly utilized techniques is summarized in this minireview. The thermodynamics of the crystal growth, design, and orientation by changing several parameters is highlighted.
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Affiliation(s)
- Jitendra Kumar
- Advanced Research in Electrochemical Impedance Spectroscopy, Department of Physics, Indian Institute of Technology Roorkee, Roorkee, India
| | - Priya Srivastava
- Advanced Research in Electrochemical Impedance Spectroscopy, Department of Physics, Indian Institute of Technology Roorkee, Roorkee, India
| | - Monojit Bag
- Advanced Research in Electrochemical Impedance Spectroscopy, Department of Physics, Indian Institute of Technology Roorkee, Roorkee, India
- Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, India
- *Correspondence: Monojit Bag,
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43
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Zhu W, Wang S, Zhang X, Wang A, Wu C, Hao F. Ion Migration in Organic-Inorganic Hybrid Perovskite Solar Cells: Current Understanding and Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2105783. [PMID: 35038213 DOI: 10.1002/smll.202105783] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 11/29/2021] [Indexed: 06/14/2023]
Abstract
Organic-inorganic hybrid perovskite (OIHPs) solar cells are the most promising alternatives to traditional silicon solar cells, with a certified power conversion efficiency beyond 25%. However, the poor stability of OHIPs is one of the thorniest obstacles that hinder its commercial development. Among all the factors affecting stability, ion migration is prominent because it is unavoidable and intrinsic in OHIPs. Therefore, it is important to understand the mechanism for ion migration and regulation strategies. Herein, the types of ions that may migrate in OHIPs are first discussed; afterward, the migrating channels are demonstrated. The effects of ion migration are further elaborated. While ion migration can facilitate the p-i-n structure in some cases, the current hysteresis and other adverse effects such as phase segregation in OHIPs attract widespread attention. Based on these, several recent strategies to suppress the ion migration are enumerated, including the introduction of alkali cations, organic additives, grain boundaries passivation, and employment of low-dimensional perovskites. Finally, the prospect for further modulating the ion migration and more stable perovskite solar cells is proposed.
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Affiliation(s)
- Weike Zhu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Shurong Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Xin Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Aili Wang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Cheng Wu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
| | - Feng Hao
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China
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44
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Zhang P, Gu N, Song L, Chen X, Du P, Zha L, Chen WH, Xiong J. The disappearing additive: introducing volatile ethyl acetate into a perovskite precursor for fabricating high efficiency stable devices in open air. NANOSCALE 2022; 14:5204-5213. [PMID: 35315464 DOI: 10.1039/d1nr08483f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In recent years, organic-inorganic halide perovskite solar cells (PSCs) have attracted massive attention because of their high power conversion efficiency (PCE). However, it is difficult to prepare perovskite films with good performance in open air due to the poor stability of perovskite materials in high humidity, which is seriously hindering the practical application and development of PSCs. Herein, ethyl acetate (EA) is introduced into the perovskite precursor to enhance the crystallinity of perovskite for fabricating high efficiency stable devices in the atmospheric environment. Interestingly, volatile EA, which is often used as an anti-solvent, could quickly evaporate and accelerate the nuclei formation during perovskite crystallization. More impressively, the Lewis base nature of EA can form strong chemical bonding interactions with perovskite to passivate the defects during crystallization. As a result, the EA-modified perovskite film demonstrates dense and defect-less morphology with large grain size (the maximum achieves 0.9 μm). The EA-treated device has a dramatic efficiency of 19.53% and negligible hysteresis of the photocurrent. Furthermore, both the temperature and humidity resistances of EA-modified PSC are significantly improved. The normalized PCE of the EA-modified device without encapsulation can still retain over 80% of its initial value after being stored in 60% relative humidity (RH) in the dark for 500 hours. This contribution provides a promising channel for facilitating the commercialization of PSCs.
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Affiliation(s)
- Pengyun Zhang
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Ningxia Gu
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Lixin Song
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Xiang Chen
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Pingfan Du
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Leying Zha
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Wei-Hsiang Chen
- School of Science, Huzhou University, Huzhou, 313000, Zhejiang, China
| | - Jie Xiong
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
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45
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Zhao X, Lu H, Fang WH, Long R. Correlated organic-inorganic motion enhances stability and charge carrier lifetime in mixed halide perovskites. NANOSCALE 2022; 14:4644-4653. [PMID: 35262126 DOI: 10.1039/d1nr07732e] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Organic cations are believed to have little influence on the charge carrier lifetime in hybrid organic-inorganic perovskites. Experiments defy this expectation. We consider formamidinium lead iodide (FAPbI3) doping with and without Br as two prototypical systems, and perform ab initio time-domain nonadiabatic (NA) molecular dynamics simulations to investigate nonradiative electron-hole recombination. The simulations demonstrate that correlated organic-inorganic motion stabilizes the lattice and inhibits nonradiative charge recombination in FAPbI3 upon Br doping. Br doping suppresses the rotation of FA and the vibrations of both organic and inorganic components, and leads to hole localization and the extent of localization is enhanced upon thermal impact, notably reducing the NA coupling by decreasing the overlap between the electron and hole wave functions. Doping also slightly increases the bandgap for further decreasing NA coupling and enhances the open-circuit voltage of perovskite solar cells. The small NA coupling and large bandgap beat the slow coherence loss, delaying electron-hole recombination and extending the charge carrier lifetime to 1.5 ns in Br-doped FAPbI3, which is on the order of 1.1 ns in pristine FAPbI3. The obtained time scales are in good agreement with experiments. Multiple phonon modes, including those of both the inorganic and organic components, couple to the electronic subsystem and accommodate the excess electronic energy lost during nonradiative charge recombination. The study reveals the unexpected atomistic mechanisms for the reduction of electron-hole recombination upon Br doping, rationalizes the experiments, and advances our understanding of the excited-state dynamics of perovskite solar cells.
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Affiliation(s)
- Xi Zhao
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, People's Republic of China.
| | - Haoran Lu
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, People's Republic of China.
| | - Wei-Hai Fang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, People's Republic of China.
| | - Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, People's Republic of China.
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Yu D, Wei Q, Li H, Xie J, Jiang X, Pan T, Wang H, Pan M, Zhou W, Liu W, Chow PCY, Ning Z. Quasi‐2D Bilayer Surface Passivation for High Efficiency Narrow Bandgap Perovskite Solar Cells. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202202346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Danni Yu
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Qi Wei
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Hansheng Li
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Junhan Xie
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Xianyuan Jiang
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Ting Pan
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Hao Wang
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Mengling Pan
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Wenjia Zhou
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Weimin Liu
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
| | - Philip C. Y. Chow
- Department of Mechanical Engineering The University of Hong Kong Pokfulam, Hong Kong 999077 China
| | - Zhijun Ning
- School of Physical Science and Technology ShanghaiTech University 393 Middle Huaxia Road, Pudong Shanghai 201210 China
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Zhang Y, Wang Y, Yang X, Zhao L, Su R, Wu J, Luo D, Li S, Chen P, Yu M, Gong Q, Zhu R. Mechanochemistry Advances High-Performance Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2107420. [PMID: 34845763 DOI: 10.1002/adma.202107420] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/05/2021] [Indexed: 06/13/2023]
Abstract
A prerequisite for commercializing perovskite photovoltaics is to develop a swift and eco-friendly synthesis route, which guarantees the mass production of halide perovskites in the industry. Herein, a green-solvent-assisted mechanochemical strategy is developed for fast synthesizing a stoichiometric δ-phase formamidinium lead iodide (δ-FAPbI3 ) powder, which serves as a high-purity precursor for perovskite film deposition with low defects. The presynthesized δ-FAPbI3 precursor possesses high concentration of micrometer-sized colloids, which are in favor of preferable crystallization by spontaneous nucleation. The resultant perovskite films own preferred crystal orientations of cubic (100) plane, which is beneficial for superior carrier transport compared to that of the films with isotropic crystal orientations using "mixture of PbI2 and FAI" as precursors. As a result, high-performance perovskite solar cells with a maximum power conversion efficiency of 24.2% are obtained. Moreover, the δ-FAPbI3 powder shows superior storage stability for more than 10 months in ambient environment (40 ± 10% relative humidity), being conducive to a facile and practical storage for further commercialization.
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Affiliation(s)
- Yuzhuo Zhang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
| | - Yanju Wang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
| | - Xiaoyu Yang
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
| | - Lichen Zhao
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
| | - Rui Su
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
| | - Jiang Wu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, Jiangsu, 226010, China
| | - Deying Luo
- Department of Materials Science and Engineering, University of Toronto, Toronto, M5G 3E4, Canada
| | - Shunde Li
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
| | - Peng Chen
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
| | - Maotao Yu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
| | - Qihuang Gong
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, Jiangsu, 226010, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi, 030006, China
| | - Rui Zhu
- State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, School of Physics, Frontiers Science Center for Nano-optoelectronics & Collaborative Innovation Center of Quantum Matter, Peking University, Beijing, 100871, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, Jiangsu, 226010, China
- Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi, 030006, China
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48
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Gao F, Luo C, Wang X, Zhao Q. Alkali Metal Chloride-Doped Water-Based TiO 2 for Efficient and Stable Planar Perovskite Photovoltaics Exceeding 23% Efficiency. SMALL METHODS 2021; 5:e2100856. [PMID: 34928042 DOI: 10.1002/smtd.202100856] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 10/16/2021] [Indexed: 06/14/2023]
Abstract
TiO2 is one of the most broadly employed electron transport materials in n-i-p structure perovskite solar cells (PSCs). Low-temperature non-hydrolyzed sol-gel method is developed to prepare TiO2 in order to simplify the fabrication process and match with the planar structure PSCs. Conventional low-temperature TiO2 film using organic solvents as dispersants makes direct doping challenging due to limited solubility. Here, a newly developed water-based TiO2 solution is directly doped with different alkali chlorides, resulting in better conductivity, compatible energy level matching, and enhanced charge extraction in terms of electron transport layer (ETL) for PSCs. As a result, a power conversion efficiency of 23.15% is achieved based on NaCl-doped TiO2 with competitive storage stability and light stability. The water-based TiO2 ETL for more general doping of various solutes opens up a new avenue for environmental-friendly manufacturing superior ETL toward high-efficiency and stable perovskite photovoltaic devices.
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Affiliation(s)
- Feng Gao
- State Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Chao Luo
- State Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Xianjin Wang
- State Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
| | - Qing Zhao
- State Key Lab for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing, 100871, China
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, Jiangsu, 226010, China
- Collaborative Innovation Center of Quantum Matter, Beijing, 100084, China
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49
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Wang Y, Mei X, Qiu J, Zhou Q, Jia D, Yu M, Liu J, Zhang X. Insight into the Interface Engineering of a SnO 2/FAPbI 3 Perovskite Using Lead Halide as an Interlayer: A First-Principles Study. J Phys Chem Lett 2021; 12:11330-11338. [PMID: 34780191 DOI: 10.1021/acs.jpclett.1c03213] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The interfacial properties of the perovskite photovoltaic layer and electron transport layer (ETL) are critical to minimize energy losses of perovskite solar cells (PSCs) induced by interfacial recombination. Herein, the interface engineering of the SnO2/FAPbI3 perovskite using PbX2 (X = Cl, Br, or I) as an interlayer is extensively studied using first-principles calculations. The results reveal that the thickness of the PbI2 interlayer needs to be finely controlled, which may limit charge transport if there is a large amount of PbI2 precipitation at the interface. The high lattice mismatch of the PbBr2 with the SnO2/FAPbI3 interface makes PbBr2 an unfavorable passivation material. Due to the strong coupling of the PbCl2 with both SnO2 and FAPbI3, an efficient electron transport pathway could be built after applying PbCl2 as an interlayer. Meanwhile, the PbCl2 interlayer could also effectively passivate interface defects, therefore lowering the energy losses of PSCs.
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Affiliation(s)
- Yunfei Wang
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Xinyi Mei
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Junming Qiu
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Qisen Zhou
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Donglin Jia
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Mei Yu
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Jianhua Liu
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
| | - Xiaoliang Zhang
- School of Materials Science and Engineering, Beihang University, Beijing 100191, China
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50
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Wang X, Wang Y, Chen Y, Liu X, Zhao Y. Efficient and Stable CsPbI 3 Inorganic Perovskite Photovoltaics Enabled by Crystal Secondary Growth. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2103688. [PMID: 34515363 DOI: 10.1002/adma.202103688] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/22/2021] [Indexed: 06/13/2023]
Abstract
Defect-triggered phase degradation is generally considered as the main issue that causes phase instability and limited device performance for CsPbI3 inorganic perovskites. Here, a defect compensation in CsPbI3 perovskite through crystal secondary growth of inorganic perovskites is demonstrated, and highly efficient inorganic photovoltaics are realized. This secondary growth is achieved by a solid-state reaction between a bromine salt and defective CsPbI3 perovskite. Upon solid-state reaction, the Br- ions can diffuse over the entire CsPbI3 perovskite layer to heal the undercoordinated Pb2+ and conduct certain solid-state I/Br ion exchange reaction, while the organic cations can potentially heal the Cs+ cation vacancies through coupling with [PbI6 ]4- octahedra. The carrier dynamics confirm that this crystal secondary growth can realize defect compensation in CsPbI3 . The as-achieved defect-compensated CsPbI3 not only improves the charge dynamics but also enhances the photoactive phase stability. Finally, the CsPbI3 -based solar cell delivers 20.04% efficiency with excellent operational stability. Overall, this work proposes a novel concept of defect compensation in inorganic perovskites through crystal secondary growth induced by solid-state reaction that is promising for various optoelectronic applications.
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Affiliation(s)
- Xingtao Wang
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Yong Wang
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Yuetian Chen
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Xiaomin Liu
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
| | - Yixin Zhao
- School of Environmental Science and Engineering, Frontiers Science Center for Transformative Molecules, Shanghai Jiao Tong University, 800 Dongchuan Road, Minhang District, Shanghai, 200240, China
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