1
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Zhang D, Hu Z, Vlaic S, Xin C, Pons S, Billot L, Aigouy L, Chen Z. Synergetic Exterior and Interfacial Approaches by Colloidal Carbon Quantum Dots for More Stable Perovskite Solar Cells Against UV. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2401505. [PMID: 38678539 DOI: 10.1002/smll.202401505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/12/2024] [Indexed: 05/01/2024]
Abstract
The achievement of both efficiency and stability in perovskite solar cells (PSCs) remains a challenging and actively researched topic. In particular, among different environmental factors, ultraviolet (UV) photons play a pivotal role in contributing to device degradation. In this work, by harvesting simultaneously both the optical and the structural properties of bottom-up-synthesized colloidal carbon quantum dots (CQDs), a cost-effective means is provided to circumvent the UV-induced degradation in PSCs without scarification on their power conversion efficiencies (PCEs). By exploring and optimizing the number of CQDs and the different locations/interfaces of the solar cells where CQDs are applied, a synergetic configuration is achieved where the photovoltaic performance drop due to optical loss is completely compensated by the increased perovskite crystallinity due to interfacial modification. As a result, on the optimized configurations where CQDs are applied both on the exterior front side as an optical layer and at the interface between the electron transport layer and the perovskite absorber, unencapsulated PSCs with PCEs >20% are fabricated which can maintain up to ≈94% of their initial PCE after 100 h of degradation in ambient air under continuous UV illumination (5 mW cm-2).
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Affiliation(s)
- Dongjiu Zhang
- Laboratoire de Physique et d'Etude des Matériaux (LPEM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 8213, 10 Rue Vauquelin, Paris, F-75005, France
| | - Zhelu Hu
- Laboratoire de Physique et d'Etude des Matériaux (LPEM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 8213, 10 Rue Vauquelin, Paris, F-75005, France
| | - Sergio Vlaic
- Laboratoire de Physique et d'Etude des Matériaux (LPEM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 8213, 10 Rue Vauquelin, Paris, F-75005, France
| | - Chenghao Xin
- Laboratoire de Physique et d'Etude des Matériaux (LPEM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 8213, 10 Rue Vauquelin, Paris, F-75005, France
| | - Stéphane Pons
- Laboratoire de Physique et d'Etude des Matériaux (LPEM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 8213, 10 Rue Vauquelin, Paris, F-75005, France
| | - Laurent Billot
- Laboratoire de Physique et d'Etude des Matériaux (LPEM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 8213, 10 Rue Vauquelin, Paris, F-75005, France
| | - Lionel Aigouy
- Laboratoire de Physique et d'Etude des Matériaux (LPEM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 8213, 10 Rue Vauquelin, Paris, F-75005, France
| | - Zhuoying Chen
- Laboratoire de Physique et d'Etude des Matériaux (LPEM), ESPCI Paris, PSL University, Sorbonne Université, CNRS UMR 8213, 10 Rue Vauquelin, Paris, F-75005, France
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2
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Mussakhanuly N, Choi E, L Chin R, Wang Y, Seidel J, Green MA, M Soufiani A, Hao X, Yun JS. Multifunctional Surface Treatment against Imperfections and Halide Segregation in Wide-Band Gap Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2024; 16:7961-7972. [PMID: 38290432 DOI: 10.1021/acsami.3c12616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Mixed-halide wide-band gap perovskites (WBPs) still suffer from losses due to imperfections within the absorber and the segregation of halide ions under external stimuli. Herein, we design a multifunctional passivator (MFP) by mixing bromide salt, formamidinium bromide (FABr) with a p-type self-assembled monolayer (SAM) to target the nonradiative recombination pathways. Photoluminescence measurement shows considerable suppression of nonradiative recombination rates after treatment with FABr. However, WBPs still remained susceptible to halide segregation for which the addition of 25% p-type SAM was effective to decelerate segregation. It is observed that FABr can act as a passivating agent of the donor impurities, shifting the Fermi-level (Ef) toward the mid-band gap, while p-type SAM could cause an overweight of Ef toward the valence band. Favorable band bending at the interface could prevent the funneling of carriers toward I-rich clusters. Instead, charge carriers funnel toward an integrated SAM, preventing the accumulation of polaron-induced strain on the lattice. Consequently, n-i-p structured devices with an optimal MFP treatment show an average open-circuit voltage (VOC) increase of about 20 mV and fill factor (FF) increase by 4% compared with the control samples. The unencapsulated devices retained 95% of their initial performance when stored at room temperature under 40% relative humidity for 2800 h.
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Affiliation(s)
- Nursultan Mussakhanuly
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Eunyoung Choi
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, U.K
- Dimond Light Source, Harwell Science and Innovation Campus, Didcot OX11 0DE, Oxfordshire, U.K
| | - Robert L Chin
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Yihao Wang
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Jan Seidel
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Martin A Green
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Arman M Soufiani
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Xiaojing Hao
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
| | - Jae S Yun
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney 2052, Australia
- Advanced Technology Institute, Department of Electrical and Electronic Engineering, University of Surrey, Guildford GU2 7XH, Surrey, U.K
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3
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Abicho S, Hailegnaw B, Mayr F, Cobet M, Yumusak C, Lelisho TA, Yohannes T, Kaltenbrunner M, Sariciftci NS, Scharber MC, Workneh GA. 3-Thiophenemalonic Acid Additive Enhanced Performance in Perovskite Solar Cells. ACS OMEGA 2024; 9:2674-2686. [PMID: 38250358 PMCID: PMC10795048 DOI: 10.1021/acsomega.3c07592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/10/2023] [Accepted: 12/22/2023] [Indexed: 01/23/2024]
Abstract
The development of ambient-air-processable organic-inorganic halide perovskite solar cells (OIHPSCs) is a challenge necessary for the transfer of laboratory-scale technology to large-scale and low-cost manufacturing of such devices. Different approaches like additives, antisolvents, composition engineering, and different deposition techniques have been employed to improve the morphology of the perovskite films. Additives that can form Lewis acid-base adducts are known to minimize extrinsic impacts that trigger defects in ambient air. In this work, we used the 3-thiophenemalonic acid (3-TMA) additive, which possesses thiol and carboxyl functional groups, to convert PbI2, PbCl2, and CH3NH3I to CH3NH3PbI3 completely. This strategy is effective in regulating the kinetics of crystallization and improving the crystallinity of the light-absorbing layer under high relative humidity (RH) conditions (30-50%). As a result, the 3-TMA additive increases the yield of the power conversion efficiency (PCE) from 14.9 to 16.5% and its stability under the maximum power point. Finally, we found that the results of this work are highly relevant and provide additional inputs to the ongoing research progress related to additive engineering as one of the efficient strategies to reduce parasitic recombination and enhance the stability of inverted OIHPSCs in ambient environment processing.
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Affiliation(s)
- Samuel Abicho
- Department
of Industrial Chemistry, Addis Ababa Science
and Technology University, P.O. Box 16417 Addis Ababa, Ethiopia
- Sustainable
Energy Center of Excellence, Addis Ababa
Science and Technology University, P.O.
Box 16417 Addis Ababa, Ethiopia
- Linz
Institute for Organic Solar Cells (LIOS)/Institute of Physical Chemistry, Johannes Kepler University, Linz, Altenberger Str. 69, 4040 Linz, Austria
- Department
of Chemistry, Hawassa University, P.O. Box 05 Hawassa, Ethiopia
| | - Bekele Hailegnaw
- Division
of Soft Matter Physics and LIT Soft Materials Lab, Johannes Kepler University, Linz, Altenberger Str. 69, 4040 Linz, Austria
| | - Felix Mayr
- Linz
Institute for Organic Solar Cells (LIOS)/Institute of Physical Chemistry, Johannes Kepler University, Linz, Altenberger Str. 69, 4040 Linz, Austria
| | - Munise Cobet
- Linz
Institute for Organic Solar Cells (LIOS)/Institute of Physical Chemistry, Johannes Kepler University, Linz, Altenberger Str. 69, 4040 Linz, Austria
| | - Cigdem Yumusak
- Linz
Institute for Organic Solar Cells (LIOS)/Institute of Physical Chemistry, Johannes Kepler University, Linz, Altenberger Str. 69, 4040 Linz, Austria
| | | | - Teketel Yohannes
- Department
of Chemistry, Addis Ababa University, P.O. Box 1176 Addis
Ababa, Ethiopia
| | - Martin Kaltenbrunner
- Division
of Soft Matter Physics and LIT Soft Materials Lab, Johannes Kepler University, Linz, Altenberger Str. 69, 4040 Linz, Austria
| | - Niyazi Serdar Sariciftci
- Linz
Institute for Organic Solar Cells (LIOS)/Institute of Physical Chemistry, Johannes Kepler University, Linz, Altenberger Str. 69, 4040 Linz, Austria
| | - Markus Clark Scharber
- Linz
Institute for Organic Solar Cells (LIOS)/Institute of Physical Chemistry, Johannes Kepler University, Linz, Altenberger Str. 69, 4040 Linz, Austria
| | - Getachew Adam Workneh
- Department
of Industrial Chemistry, Addis Ababa Science
and Technology University, P.O. Box 16417 Addis Ababa, Ethiopia
- Sustainable
Energy Center of Excellence, Addis Ababa
Science and Technology University, P.O.
Box 16417 Addis Ababa, Ethiopia
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4
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Song C, Du H, Xu M, Yang J, Zhang X, Wang J, Zhang Y, Gu C, Li R, Hong T, Zhang J, Wang J, Ye Y. Improving the performance of perovskite solar cells using a dual-hole transport layer. Dalton Trans 2024; 53:484-492. [PMID: 38084054 DOI: 10.1039/d3dt03501h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
The energy loss (Eloss) caused by inefficient charge transfer and large energy level offset at the buried interface can easily restrict the performance of p-i-n perovskite solar cells (PVSCs). In this study, the utilization of poly-TPD and P3CT-N as a dual-hole transporting layer (HTLs) was implemented in a sequential manner. This approach aimed to improve the charge transfer efficiency of the HTL and mitigate charge recombination at the interface between the HTL and PVK. The results showed that this strategy also could achieve more suitable energy levels, improve the quality of the perovskite film layer, and ultimately enhance the device's stability. IPVSCs employing the dual-HTLs approach exhibited the highest power conversion efficiency of 19.85%, and the open-circuit voltage increased to 1.09 V from 1.00 V. This study offers a straightforward and efficient approach to boost the device performance by minimizing Eloss and reducing the buried interfacial defects. The findings underscore the potential of employing a dual-HTL strategy as a promising pathway for further advancements in PVSCs.
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Affiliation(s)
- Chenghao Song
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, Zhejiang, China.
| | - Huiwei Du
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, Zhejiang, China.
| | - Menglei Xu
- JinkoSolar, Haining, 314400, Zhejiang, China.
| | - Jie Yang
- JinkoSolar, Haining, 314400, Zhejiang, China.
| | - Xinyu Zhang
- JinkoSolar, Haining, 314400, Zhejiang, China.
| | - Jungan Wang
- JinkoSolar, Haining, 314400, Zhejiang, China.
| | | | - Chengjun Gu
- JinkoSolar, Haining, 314400, Zhejiang, China.
| | - Rui Li
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, Zhejiang, China.
| | - Tao Hong
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, Zhejiang, China.
| | - Jingji Zhang
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, Zhejiang, China.
| | - Jiangying Wang
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, Zhejiang, China.
| | - Yongchun Ye
- College of Materials and Chemistry, China Jiliang University, Hangzhou, 310018, Zhejiang, China.
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5
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Chen J, Xu K, Xie W, Zheng L, Tian Y, Zhang J, Chen J, Liu T, Xu H, Cheng K, Ma R, Chen C, Bao J, Wang X, Liu Y. Enhancing perovskite solar cells efficiency through cesium fluoride mediated surface lead iodide modulation. J Colloid Interface Sci 2023; 652:1726-1733. [PMID: 37672975 DOI: 10.1016/j.jcis.2023.08.158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/10/2023] [Accepted: 08/25/2023] [Indexed: 09/08/2023]
Abstract
The presence of an excessive amount of lead iodide on the surface of perovskite solar cells (PSCs) is a significant contributing factor that adversely affects the stability of these devices when exposed to continuous light. To address this issue, we developed an effective strategy involving polishing PbI2 on a perovskite surface using CsF. In this study, we investigated the effects of CsF post-treatment on perovskite films and their photovoltaic properties. The results of the time-resolved photoluminescence and ultraviolet photoelectron spectroscopy tests reveal the significant positive impact of our passivation method based on CsF, which reduces the valence band offset between the perovskite and hole transport layers while simultaneously enhancing the carrier interface transport. PSCs treated with CsF exhibited a photoelectric conversion efficiency (PCE) of 24.25% and an increased fill factor (FF) of 81.72%, which surpassed those of the original PSCs (PCE = 22.12% and FF = 77.40%). Furthermore, after aging for over 2500 h at room temperature and in 30 ± 10% humidity, the PCE of the unpacked PSCs reduced to only 42% of the initial value. Furthermore, the devices treated with CsF maintained their impressive performance, with the PCE maintaining optimal levels at 91% of the initial efficiency.
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Affiliation(s)
- Junming Chen
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China; Anhui Province Quartz Sand Purification and Photovoltaic Glass Engineering Research Center, Chuzhou 233100, PR China
| | - Kun Xu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Weicheng Xie
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Lishuang Zheng
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Yulu Tian
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Jue Zhang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Jiahui Chen
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Tianyuan Liu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Hanzhong Xu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Kun Cheng
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Ruoming Ma
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Chen Chen
- National Laboratory of Solid State Microstructures, School of Physics, Nanjing University, Nanjing, Jiangsu 210009, PR China
| | - Jusheng Bao
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China
| | - Xuchun Wang
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China; Anhui Province Quartz Sand Purification and Photovoltaic Glass Engineering Research Center, Chuzhou 233100, PR China.
| | - You Liu
- College of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu, Anhui 233000, PR China; Anhui Province Quartz Sand Purification and Photovoltaic Glass Engineering Research Center, Chuzhou 233100, PR China.
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6
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Cha J, Baek D, Jin H, Na H, Park GY, Ham DS, Kim M. Utilizing Machine Learning and Diode Physics to Investigate the Effects of Stoichiometry on Photovoltaic Performance in Sequentially Processed Perovskite Solar Cells. ACS OMEGA 2023; 8:41558-41569. [PMID: 37969995 PMCID: PMC10633957 DOI: 10.1021/acsomega.3c05622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 10/06/2023] [Indexed: 11/17/2023]
Abstract
Organic-inorganic metal halide perovskite solar cells are renowned for their extensive solution processability, although the production of uniformly crystalline perovskite films can necessitate intricate deposition methods. In our study, we harmonized Shockley diode-based numerical analysis with machine learning techniques to extract the device characteristics of perovskite solar cells and optimize their photovoltaic performance in light of the experimental variables. The application of the Shockley diode equation facilitated the extraction of photovoltaic parameters and the prediction of power conversion efficiencies, thus aiding the understanding of device physics and charge recombination. Through machine learning, specifically Gaussian process regression, we trained models on current-voltage curves sensitive to variations in fabrication conditions, thereby pinpointing the optimal settings for enhanced device performance. Our multifaceted approach not only clarifies the interplay between experimental conditions and device performance but also streamlines the optimization process, diminishing the need for exhaustive trial-and-error experiments. This methodology holds substantial promise for advancing the development and fine-tuning of next-generation perovskite solar cells.
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Affiliation(s)
- Jeongbeom Cha
- Graduate
School of Integrated Energy-AI, Jeonbuk
National University, Jeonju 54896, Republic
of Korea
| | - Dohun Baek
- School
of Chemical Engineering, Clean Energy Research Center, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Haedam Jin
- Graduate
School of Integrated Energy-AI, Jeonbuk
National University, Jeonju 54896, Republic
of Korea
| | - Hyemi Na
- School
of Chemical Engineering, Clean Energy Research Center, Jeonbuk National University, Jeonju 54896, Republic of Korea
| | - Geon Yeong Park
- School
of Chemical Engineering, Clean Energy Research Center, Jeonbuk National University, Jeonju 54896, Republic of Korea
- Chemical
Materials Solutions Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Dong Seok Ham
- Chemical
Materials Solutions Center, Korea Research
Institute of Chemical Technology (KRICT), Daejeon 34114, Republic of Korea
| | - Min Kim
- Graduate
School of Integrated Energy-AI, Jeonbuk
National University, Jeonju 54896, Republic
of Korea
- School
of Chemical Engineering, Clean Energy Research Center, Jeonbuk National University, Jeonju 54896, Republic of Korea
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7
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Tian B, Shang Y, Tu Y, Hu J, Han D, Xu Q, Yang S, Ye Y, Ding H, Li Y, Zhu J. Correlation between Interfacial Structures and Device Performance: The Double-Edged Sword Effect of Lead Iodide in Perovskite Solar Cells. Chemphyschem 2023; 24:e202300400. [PMID: 37488069 DOI: 10.1002/cphc.202300400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/22/2023] [Accepted: 07/24/2023] [Indexed: 07/26/2023]
Abstract
The interfacial electronic structure of perovskite layers and transport layers is critical for the performance and stability of perovskite solar cells (PSCs). The device performance of PSCs can generally be improved by adding a slight excess of lead iodide (PbI2 ) to the precursor solution. However, its underlying working mechanism is controversial. Here, we performed a comprehensive study of the electronic structures at the interface between CH3 NH3 PbI3 and C60 with and without the modification of PbI2 using in situ photoemission spectroscopy measurements. The correlation between the interfacial structures and the device performance was explored based on performance and stability tests. We found that there is an interfacial dipole reversal, and the downward band bending is larger at the CH3 NH3 PbI3 /C60 interface with the modification of PbI2 as compared to that without PbI2 . Therefore, PSCs with PbI2 modification exhibit faster charge carrier transport and slower carrier recombination. Nevertheless, the modification of PbI2 undermines the device stability due to aggravated iodide migration. Our findings provide a fundamental understanding of the CH3 NH3 PbI3 /C60 interfacial structure from the perspective of the atomic layer and insight into the double-edged sword effect of PbI2 as an additive.
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Affiliation(s)
- Bingchu Tian
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, 230029, Hefei, China
| | - Yanbo Shang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 230026, Hefei, China
| | - Yi Tu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, 230029, Hefei, China
| | - Jun Hu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, 230029, Hefei, China
| | - Dong Han
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, 230029, Hefei, China
| | - Qian Xu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, 230029, Hefei, China
| | - Shangfeng Yang
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, 230026, Hefei, China
| | - Yifan Ye
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, 230029, Hefei, China
| | - Honghe Ding
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, 230029, Hefei, China
| | - Yu Li
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, 230029, Hefei, China
| | - Junfa Zhu
- National Synchrotron Radiation Laboratory, Department of Chemical Physics, University of Science and Technology of China, 230029, Hefei, China
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8
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Li G, Hu Y, Li M, Tang Y, Zhang Z, Musiienko A, Cao Q, Akhundova F, Li J, Prashanthan K, Yang F, Janasik P, Appiah ANS, Trofimov S, Livakas N, Zuo S, Wu L, Wang L, Yang Y, Agyei-Tuffour B, MacQueen RW, Naydenov B, Unold T, Unger E, Aktas E, Eigler S, Abate A. Managing Excess Lead Iodide with Functionalized Oxo-Graphene Nanosheets for Stable Perovskite Solar Cells. Angew Chem Int Ed Engl 2023; 62:e202307395. [PMID: 37522562 DOI: 10.1002/anie.202307395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/01/2023]
Abstract
Stability issues could prevent lead halide perovskite solar cells (PSCs) from commercialization despite it having a comparable power conversion efficiency (PCE) to silicon solar cells. Overcoming drawbacks affecting their long-term stability is gaining incremental importance. Excess lead iodide (PbI2 ) causes perovskite degradation, although it aids in crystal growth and defect passivation. Herein, we synthesized functionalized oxo-graphene nanosheets (Dec-oxoG NSs) to effectively manage the excess PbI2 . Dec-oxoG NSs provide anchoring sites to bind the excess PbI2 and passivate perovskite grain boundaries, thereby reducing charge recombination loss and significantly boosting the extraction of free electrons. The inclusion of Dec-oxoG NSs leads to a PCE of 23.7 % in inverted (p-i-n) PSCs. The devices retain 93.8 % of their initial efficiency after 1,000 hours of tracking at maximum power points under continuous one-sun illumination and exhibit high stability under thermal and ambient conditions.
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Affiliation(s)
- Guixiang Li
- Key Lab for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
- Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
- Present address: Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne (EPFL), 1015, Lausanne, Switzerland
| | - Yalei Hu
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Altensteinstraße 23a, 14195, Berlin, Germany
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR3572, University of Strasbourg, ISIS, 67000, Strasbourg, France
| | - Meng Li
- Key Lab for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Ying Tang
- Key Lab for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China
| | - Zuhong Zhang
- Key Lab for Special Functional Materials of Ministry of Education, National & Local Joint Engineering Research Center for High-efficiency Display and Lighting Technology, School of Materials Science and Engineering, Collaborative Innovation Center of Nano Functional Materials and Applications, Henan University, Kaifeng, 475004, China
| | - Artem Musiienko
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Qing Cao
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Altensteinstraße 23a, 14195, Berlin, Germany
| | - Fatima Akhundova
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Jinzhao Li
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Karunanantharajah Prashanthan
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
- Department of Physics, University of Jaffna, Jaffna, 40000, Sri Lanka
| | - Fengjiu Yang
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Patryk Janasik
- Silesian University of Technology, 44-100, Gliwice, Poland
| | | | - Sergei Trofimov
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Nikolaos Livakas
- Nanochemistry Department, Istituto Italiano di Tecnologia, Via Morego 30, 16163, Genova, Italy
- Department of Chemistry and Industrial Chemistry, Universitàdegli Studi di Genova, Via Dodecaneso 31, 16146, Genova, Italy
| | - Shengnan Zuo
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Luyan Wu
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
- Department of Physics, Università di Cagliari Cittadella Universitaria, 09042, Monserrato, Italy
| | - Luyao Wang
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Yuqian Yang
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Benjamin Agyei-Tuffour
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
- Department of Materials Science and Engineering, School of Engineering Sciences, College of Basic and Applied Sciences, University of Ghana Legon, GA-521-1966, Accra, Ghana
| | - Rowan W MacQueen
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Boris Naydenov
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Thomas Unold
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Eva Unger
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
| | - Ece Aktas
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II. Naples, pzz.le Vincenzo Tecchio 80, 80125, Naples, Italy
| | - Siegfried Eigler
- Institute of Chemistry and Biochemistry, Freie Universität Berlin, Altensteinstraße 23a, 14195, Berlin, Germany
| | - Antonio Abate
- Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109, Berlin, Germany
- Department of Chemistry, Bielefeld University, Universitätsstraße 25, 33615, Bielefeld, Germany
- Department of Chemical, Materials and Production Engineering, University of Naples Federico II. Naples, pzz.le Vincenzo Tecchio 80, 80125, Naples, Italy
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9
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Wargulski DR, Xu K, Hempel H, Flatken MA, Albrecht S, Abou-Ras D. Relationship between the Annealing Temperature and the Presence of PbI 2 Platelets at the Surfaces of Slot-Die-Coated Triple-Halide Perovskite Thin Films. ACS APPLIED MATERIALS & INTERFACES 2023; 15:41516-41524. [PMID: 37626018 PMCID: PMC10485798 DOI: 10.1021/acsami.3c07692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023]
Abstract
We investigated triple-halide perovskite (THP) absorber layers with 5 mol % MAPbCl3 added to the double-halide perovskite (Cs0.22FA0.78)Pb(I0.85Br0.15)3. As a deposition method, a highly scalable printing technique, slot-die coating, with a subsequent annealing step was used. We found a strong power conversion efficiency (PCE) dependence of the corresponding solar cells on the annealing temperature. The device performance deteriorated when increasing the annealing temperature from 125 to 170 °C, mainly via losses in the open-circuit voltage (Voc) and in the fill factor (FF). To understand the mechanisms behind this performance loss, extensive characterizations were performed on both, the THP thin films and the completed solar-cell stacks, as a function of annealing temperature. Correlative scanning electron microscopy analyses, i.e., electron backscatter diffraction, energy-dispersive X-ray spectroscopy, and cathodoluminescence, in addition to X-ray diffraction and photoluminescence, confirmed the presence of PbI2 platelets on the surface of the THP thin films. Moreover, the area fraction of the PbI2 platelets on the film surface increased with increasing annealing temperature. The deteriorated device performance when the annealing temperature is increased from 125 to 170 °C is explained by the increased series resistance and increased interface recombination caused by the PbI2 platelets, leading to decreased Voc and FF values of the solar-cell devices. Thus, the correlative analyses provided insight into microscopic origins of the efficiency losses.
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Affiliation(s)
- Dan R. Wargulski
- Helmholtz-
Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
| | - Ke Xu
- Helmholtz-
Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
| | - Hannes Hempel
- Helmholtz-
Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
| | - Marion A. Flatken
- Helmholtz-
Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
| | - Steve Albrecht
- Helmholtz-
Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
- Faculty
of Electrical Engineering and Computer Science, Technische Universität Berlin, 10587 Berlin, Germany
| | - Daniel Abou-Ras
- Helmholtz-
Zentrum Berlin für Materialien und Energie GmbH, 14109 Berlin, Germany
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10
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Liu Y, Yang J, Lawrie BJ, Kelley KP, Ziatdinov M, Kalinin SV, Ahmadi M. Disentangling Electronic Transport and Hysteresis at Individual Grain Boundaries in Hybrid Perovskites via Automated Scanning Probe Microscopy. ACS NANO 2023; 17:9647-9657. [PMID: 37155579 DOI: 10.1021/acsnano.3c03363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Underlying the rapidly increasing photovoltaic efficiency and stability of metal halide perovskites (MHPs) is the advancement in the understanding of the microstructure of polycrystalline MHP thin film. Over the past decade, intense efforts have been aimed at understanding the effect of microstructures on MHP properties, including chemical heterogeneity, strain disorder, phase impurity, etc. It has been found that grain and grain boundary (GB) are tightly related to lots of microscale and nanoscale behavior in MHP thin films. Atomic force microscopy (AFM) is widely used to observe grain and boundary structures in topography and subsequently to study the correlative surface potential and conductivity of these structures. For now, most AFM measurements have been performed in imaging mode to study the static behavior; in contrast, AFM spectroscopy mode allows us to investigate the dynamic behavior of materials, e.g., conductivity under sweeping voltage. However, a major limitation of AFM spectroscopy measurements is that they require manual operation by human operators, and as such only limited data can be obtained, hindering systematic investigations of these microstructures. In this work, we designed a workflow combining the conductive AFM measurement with a machine learning (ML) algorithm to systematically investigate grain boundaries in MHPs. The trained ML model can extract GBs locations from the topography image, and the workflow drives the AFM probe to each GB location to perform a current-voltage (IV) curve automatically. Then, we are able to have IV curves at all GB locations, allowing us to systematically understand the property of GBs. Using this method, we discovered that the GB junction points are less conductive, potentially more photoactive, and can play critical roles in MHP stability, while most previous works only focused on the difference between GB and grains.
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Affiliation(s)
- Yongtao Liu
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Jonghee Yang
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Benjamin J Lawrie
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Kyle P Kelley
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Maxim Ziatdinov
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
- Computational Sciences and Engineering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830, United States
| | - Sergei V Kalinin
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Mahshid Ahmadi
- Department of Materials Science and Engineering, University of Tennessee, Knoxville, Tennessee 37996, United States
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11
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Telschow O, Scheffczyk N, Hinderhofer A, Merten L, Kneschaurek E, Bertram F, Zhou Q, Löffler M, Schreiber F, Paulus F, Vaynzof Y. Elucidating Structure Formation in Highly Oriented Triple Cation Perovskite Films. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2206325. [PMID: 37078840 DOI: 10.1002/advs.202206325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 02/06/2023] [Indexed: 05/03/2023]
Abstract
Metal halide perovskites are an emerging class of crystalline semiconductors of great interest for application in optoelectronics. Their properties are dictated not only by their composition, but also by their crystalline structure and microstructure. While significant efforts are dedicated to the development of strategies for microstructural control, significantly less is known about the processes that govern the formation of their crystalline structure in thin films, in particular in the context of crystalline orientation. This work investigates the formation of highly oriented triple cation perovskite films fabricated by utilizing a range of alcohols as an antisolvent. Examining the film formation by in situ grazing-incidence wide-angle X-ray scattering reveals the presence of a short-lived highly oriented crystalline intermediate, which is identified as FAI-PbI2 -xDMSO. The intermediate phase templates the crystallization of the perovskite layer, resulting in highly oriented perovskite layers. The formation of this dimethylsulfoxide (DMSO) containing intermediate is triggered by the selective removal of N,N-dimethylformamide (DMF) when alcohols are used as an antisolvent, consequently leading to differing degrees of orientation depending on the antisolvent properties. Finally, this work demonstrates that photovoltaic devices fabricated from the highly oriented films, are superior to those with a random polycrystalline structure in terms of both performance and stability.
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Affiliation(s)
- Oscar Telschow
- Integrated Center for Applied Physics and Photonic Materials, Technische Universität Dresden, Nöthnitzer Straße 61, 01187, Dresden, Germany
- Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, Helmholtzstraße 18, 01069, Dresden, Germany
| | - Niels Scheffczyk
- Institut für Angewandte Physik, Universität Tübingen, 72076, Tübingen, Germany
| | | | - Lena Merten
- Institut für Angewandte Physik, Universität Tübingen, 72076, Tübingen, Germany
| | | | - Florian Bertram
- Deutsches Elektronen-Synchrotron DESY, Notkestr. 85, 22607, Hamburg, Germany
| | - Qi Zhou
- Integrated Center for Applied Physics and Photonic Materials, Technische Universität Dresden, Nöthnitzer Straße 61, 01187, Dresden, Germany
- Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, Helmholtzstraße 18, 01069, Dresden, Germany
| | - Markus Löffler
- Dresden Center for Nanoanalysis (DCN), Technische Universität Dresden, Helmholtzstraße 18, 01069, Dresden, Germany
| | - Frank Schreiber
- Institut für Angewandte Physik, Universität Tübingen, 72076, Tübingen, Germany
| | - Fabian Paulus
- Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, Helmholtzstraße 18, 01069, Dresden, Germany
| | - Yana Vaynzof
- Integrated Center for Applied Physics and Photonic Materials, Technische Universität Dresden, Nöthnitzer Straße 61, 01187, Dresden, Germany
- Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, Helmholtzstraße 18, 01069, Dresden, Germany
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12
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Zou Q, Zheng G, Yao D, Wang J, Tian N, Mo S, Long F. Effects of Lead Iodide Crystallization on Photovoltaic Performance of Perovskite Solar Cells by the Vapor-Solid Reaction Method. ACS OMEGA 2023; 8:12430-12438. [PMID: 37033797 PMCID: PMC10077426 DOI: 10.1021/acsomega.3c00318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 03/15/2023] [Indexed: 06/19/2023]
Abstract
The vapor-solid reaction method (VRM) is one of the promising techniques to prepare high-performance perovskite solar cells. Herein, PbI2 precursor films were prepared by vacuum evaporation. It was found that the PbI2 precursor films exhibit high crystallinity and orderly morphology at the substrate temperature of 110 °C. On this basis, the precursor films were prepared by VRM to obtain high-quality perovskite films and the power conversion efficiency (PCE) of perovskite solar cells (PSCs) devices reached 17.1%. In contrast, the PbI2 film precursor was prepared on the substrate without being heated and the PCE of the final PSCs devices was only 13.04%.
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Affiliation(s)
- Qin Zou
- Guangxi
Key Laboratory of Optical and Electronic Material and Devices, School
of Materials Science and Engineering, Guilin
University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China
| | - Guoyuan Zheng
- Guangxi
Key Laboratory of Optical and Electronic Material and Devices, School
of Materials Science and Engineering, Guilin
University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China
| | - Disheng Yao
- Guangxi
Key Laboratory of Optical and Electronic Material and Devices, School
of Materials Science and Engineering, Guilin
University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China
| | - Jilin Wang
- Guangxi
Key Laboratory of Optical and Electronic Material and Devices, School
of Materials Science and Engineering, Guilin
University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China
- Collaborative
Innovation Center for Exploration of Nonferrous Metal Deposits and
Efficient Utilization of Resources, Guilin
University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China
| | - Nan Tian
- Guangxi
Key Laboratory of Optical and Electronic Material and Devices, School
of Materials Science and Engineering, Guilin
University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China
| | - Shuyi Mo
- Guangxi
Key Laboratory of Optical and Electronic Material and Devices, School
of Materials Science and Engineering, Guilin
University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China
| | - Fei Long
- Guangxi
Key Laboratory of Optical and Electronic Material and Devices, School
of Materials Science and Engineering, Guilin
University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China
- Collaborative
Innovation Center for Exploration of Nonferrous Metal Deposits and
Efficient Utilization of Resources, Guilin
University of Technology, 12 Jiangan Road, Guilin, Guangxi 541004, China
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13
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Wei X, Zhang P, Xu T, Zhou H, Bai Y, Chen Q. Chemical approaches for electronic doping in photovoltaic materials beyond crystalline silicon. Chem Soc Rev 2022; 51:10016-10063. [PMID: 36398768 DOI: 10.1039/d2cs00110a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Electronic doping is applied to tailor the electrical and optoelectronic properties of semiconductors, which have been widely adopted in information and clean energy technologies, like integrated circuit fabrication and PVs. Though this concept has prevailed in conventional PVs, it has achieved limited success in the new-generation PV materials, particularly in halide perovskites, owing to their soft lattice nature and self-compensation by intrinsic defects. In this review, we summarize the evolution of the theoretical understanding and strategies of electronic doping from Si-based photovoltaics to thin-film technologies, e.g., GaAs, CdTe and Cu(In,Ga)Se2, and also cover the emerging PVs including halide perovskites and organic solar cells. We focus on the chemical approaches to electronic doping, emphasizing various chemical interactions/bonding throughout materials synthesis/modification to device fabrication/operation. Furthermore, we propose new classifications and models of electronic doping based on the physical and chemical properties of dopants, in the context of solid-state chemistry, which inspires further development of optoelectronics based on perovskites and other hybrid materials. Finally, we outline the effects of electronic doping in semiconducting materials and highlight the challenges that need to be overcome for reliable and controllable doping.
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Affiliation(s)
- Xueyuan Wei
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
| | - Pengxiang Zhang
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
| | - Tailai Xu
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
| | - Huanping Zhou
- School of Materials Science and Engineering, Peking University, Beijing, 100871, P. R. China
| | - Yang Bai
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
| | - Qi Chen
- Experimental Centre for Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.
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14
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He R, Yi Z, Luo Y, Luo J, Wei Q, Lai H, Huang H, Zou B, Cui G, Wang W, Xiao C, Ren S, Chen C, Wang C, Xing G, Fu F, Zhao D. Pure 2D Perovskite Formation by Interfacial Engineering Yields a High Open-Circuit Voltage beyond 1.28 V for 1.77-eV Wide-Bandgap Perovskite Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2203210. [PMID: 36372551 PMCID: PMC9799022 DOI: 10.1002/advs.202203210] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 10/05/2022] [Indexed: 06/16/2023]
Abstract
Surface post-treatment using ammonium halides effectively reduces large open-circuit voltage (VOC ) losses in bromine-rich wide-bandgap (WBG) perovskite solar cells (PSCs). However, the underlying mechanism still remains unclear and the device efficiency lags largely behind. Here, a facile strategy of precisely tailoring the phase purity of 2D perovskites on top of 3D WBG perovskite and realizing high device efficiency is reported. The transient absorption spectra, cross-sectional confocal photoluminescence mapping, and cross-sectional Kelvin probe force microscopy are combined to demonstrate optimal defect passivation effect and surface electric-field of pure n = 1 2D perovskites formed atop 3D WBG perovskites via low-temperature annealing. As a result, the inverted champion device with 1.77-eV perovskite absorber achieves a high VOC of 1.284 V and a power conversion efficiency (PCE) of 17.72%, delivering the smallest VOC deficit of 0.486 V among WBG PSCs with a bandgap higher than 1.75 eV. This enables one to achieve a four-terminal all-perovskite tandem solar cell with a PCE exceeding 25% by combining with a 1.25-eV low-bandgap PSC.
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Affiliation(s)
- Rui He
- College of Materials Science and Engineering & Institute of New Energy and Low‐Carbon TechnologyEngineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationSichuan UniversityChengdu610065P. R. China
| | - Zongjin Yi
- College of Materials Science and Engineering & Institute of New Energy and Low‐Carbon TechnologyEngineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationSichuan UniversityChengdu610065P. R. China
| | - Yi Luo
- College of Materials Science and Engineering & Institute of New Energy and Low‐Carbon TechnologyEngineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationSichuan UniversityChengdu610065P. R. China
| | - Jincheng Luo
- College of Materials Science and Engineering & Institute of New Energy and Low‐Carbon TechnologyEngineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationSichuan UniversityChengdu610065P. R. China
| | - Qi Wei
- Joint Key Laboratory of the Ministry of EducationInstitute of Applied Physics and Materials EngineeringUniversity of MacauAvenida da Universidade, TaipaMacau999078P. R. China
| | - Huagui Lai
- Laboratory for Thin Films and PhotovoltaicsEmpa – Swiss Federal Laboratories for Materials Science and TechnologyUeberlandstrasse 129DuebendorfCH‐8600Switzerland
| | - Hao Huang
- Guangxi Key Laboratory of Processing for Non‐ferrous Metals and Featured MaterialsSchool of Resources, Environment and MaterialsGuangxi UniversityNanning530004P. R. China
| | - Bingsuo Zou
- Guangxi Key Laboratory of Processing for Non‐ferrous Metals and Featured MaterialsSchool of Resources, Environment and MaterialsGuangxi UniversityNanning530004P. R. China
| | - Guangyao Cui
- College of Materials Science and Engineering & Institute of New Energy and Low‐Carbon TechnologyEngineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationSichuan UniversityChengdu610065P. R. China
| | - Wenwu Wang
- College of Materials Science and Engineering & Institute of New Energy and Low‐Carbon TechnologyEngineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationSichuan UniversityChengdu610065P. R. China
| | - Chuanxiao Xiao
- Ningbo Institute of Materials Technology and EngineeringChinese Academy of SciencesNingbo New Material Testing and Evaluation Center Co., LtdNingbo City315201P. R. China
| | - Shengqiang Ren
- College of Materials Science and Engineering & Institute of New Energy and Low‐Carbon TechnologyEngineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationSichuan UniversityChengdu610065P. R. China
| | - Cong Chen
- College of Materials Science and Engineering & Institute of New Energy and Low‐Carbon TechnologyEngineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationSichuan UniversityChengdu610065P. R. China
| | - Changlei Wang
- School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and TechnologyKey Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of ChinaSoochow UniversitySuzhou215006P. R. China
| | - Guichuan Xing
- Joint Key Laboratory of the Ministry of EducationInstitute of Applied Physics and Materials EngineeringUniversity of MacauAvenida da Universidade, TaipaMacau999078P. R. China
| | - Fan Fu
- Laboratory for Thin Films and PhotovoltaicsEmpa – Swiss Federal Laboratories for Materials Science and TechnologyUeberlandstrasse 129DuebendorfCH‐8600Switzerland
| | - Dewei Zhao
- College of Materials Science and Engineering & Institute of New Energy and Low‐Carbon TechnologyEngineering Research Center of Alternative Energy Materials & DevicesMinistry of EducationSichuan UniversityChengdu610065P. R. China
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15
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Novel Push-Pull Benzodithiophene-Containing Polymers as Hole-Transport Materials for Efficient Perovskite Solar Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238333. [PMID: 36500425 PMCID: PMC9741263 DOI: 10.3390/molecules27238333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 11/20/2022] [Accepted: 11/21/2022] [Indexed: 12/02/2022]
Abstract
Donor-acceptor conjugated polymers are considered advanced semiconductor materials for the development of thin-film electronics. One of the most attractive families of polymeric semiconductors in terms of photovoltaic applications are benzodithiophene-based polymers owing to their highly tunable electronic and physicochemical properties, and readily scalable production. In this work, we report the synthesis of three novel push-pull benzodithiophene-based polymers with different side chains and their investigation as hole transport materials (HTM) in perovskite solar cells (PSCs). It is shown that polymer P3 that contains triisopropylsilyl side groups exhibits better film-forming ability that, along with high hole mobilities, results in increased characteristics of PSCs. Encouraging a power conversion efficiency (PCE) of 17.4% was achieved for P3-based PSCs that outperformed the efficiency of devices based on P1, P2, and benchmark PTAA polymer. These findings feature the great potential of benzodithiophene-based conjugated polymers as dopant-free HTMs for the fabrication of efficient perovskite solar cells.
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16
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Luan F, Li H, Gong S, Chen X, Shou C, Wu Z, Xie H, Yang S. Precursor engineering for efficient and stable perovskite solar cells. NANOTECHNOLOGY 2022; 34:055402. [PMID: 36322962 DOI: 10.1088/1361-6528/ac9f4f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
The perovskite film prepared by the two-step spin coating method is widely used in photovoltaic devices due to its good film morphology and great reproducibility. However, there usually exists excessive lead iodide (PbI2) in the perovskite film for this method, which is believed to passivate the grain boundaries (GBs) to increase the efficiency of the perovskite solar cells. Nevertheless, the excessive PbI2at the GBs of perovskite is believed to induce the decomposition of the perovskite film and undermine the long-term stability of devices. In this study, we utilize precursor engineering to realize the preparation of perovskite solar cells with high efficiency and stability. The concentration of organic salts (AX: A = MA+, FA+; X = I-, Cl-) in the precursor solution for the second step of the two-step spin coating method is adjusted to optimize the perovskite light-absorbing layer so that the excessive PbI2is converted into perovskite to obtain a smooth and pinhole-free perovskite film with high performance. Our results indicate that by adjusting the concentration of AX in the precursor solution, PbI2in the film could be completely converted into perovskite without excessive AX residue. Both the efficiency and stability of the perovskite solar cells without excessive PbI2have been significantly improved. A planar perovskite solar cell with the highest power conversion efficiency (PCE) of 21.26% was achieved, maintaining about 90% of the initial PCE after 300 h of storage in a dry air environment and in the dark, about 76% of the initial PCE after 300 h of continuous illumination of 1 Sun.
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Affiliation(s)
- Fuyuan Luan
- School of Energy and Materials, Shanghai Polytechnic University, Shanghai 201209, People's Republic of China
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 588 Heshuo Road, Shanghai 201899, People's Republic of China
- Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai 201209, People's Republic of China
| | - Haiyan Li
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 588 Heshuo Road, Shanghai 201899, People's Republic of China
| | - Shuiping Gong
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 588 Heshuo Road, Shanghai 201899, People's Republic of China
| | - Xinyu Chen
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 588 Heshuo Road, Shanghai 201899, People's Republic of China
| | - Chunhui Shou
- Key Laboratory of Solar Energy Utilization & Energy Saving Technology of Zhejiang Province, Zhejiang Energy Group R&D, Hangzhou, Zhejiang 310003, People's Republic of China
| | - Zihua Wu
- School of Energy and Materials, Shanghai Polytechnic University, Shanghai 201209, People's Republic of China
- Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai 201209, People's Republic of China
| | - Huaqing Xie
- School of Energy and Materials, Shanghai Polytechnic University, Shanghai 201209, People's Republic of China
- Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai 201209, People's Republic of China
| | - Songwang Yang
- School of Energy and Materials, Shanghai Polytechnic University, Shanghai 201209, People's Republic of China
- CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 588 Heshuo Road, Shanghai 201899, People's Republic of China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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17
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Song W, Zhang X, Lammar S, Qiu W, Kuang Y, Ruttens B, D'Haen J, Vaesen I, Conard T, Abdulraheem Y, Aernouts T, Zhan Y, Poortmans J. Critical Role of Perovskite Film Stoichiometry in Determining Solar Cell Operational Stability: a Study on the Effects of Volatile A-Cation Additives. ACS APPLIED MATERIALS & INTERFACES 2022; 14:27922-27931. [PMID: 35687012 DOI: 10.1021/acsami.2c05241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Volatile A-cation halide (AX) additives such as formamidinium chloride and methylammonium chloride have been widely employed for high-efficiency perovskite solar cells (PSCs). However, it remains unstudied how they influence the perovskite film stoichiometry and the solar cell performance and operational stability. Hereby, our work shows that over annealing of formamidinium chloride-containing perovskite films leads to a Pb-rich surface, resulting in a high initial efficiency, which however decays during maximum power point tracking (MPPT). On the contrary, perovskite films obtained by a shorter annealing time at the same temperature provide good stability during MPPT but a lower initial efficiency. Thus, we deduce that an optimal annealing is vital for both high efficiency and operational stability, which is then confirmed in the case where methylammonium chloride additive is used. With optimized perovskite annealing conditions, we demonstrate efficient and stable p-i-n PSCs that show a best power conversion efficiency of 20.7% and remain 90% of the initial performance after a 200 h MPPT at 60 °C under simulated 1 sun illumination with high UV content. Our work presents a comprehensive understanding on how volatile AX impacts perovskite film stoichiometry and its correlation to the device performance and operational stability, providing a new guideline for fabricating high-efficiency and operationally stable PSCs.
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Affiliation(s)
- Wenya Song
- Department of Electrical Engineering (ESAT), Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium
- Thin Film PV Technology─Partner in Solliance, Imec, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Xin Zhang
- Department of Electrical Engineering (ESAT), Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium
- Thin Film PV Technology─Partner in Solliance, Imec, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai 200433, P. R. China
- Academy for Engineering & Technology (FAET), Fudan University, 200433 Shanghai, P. R. China
| | - Stijn Lammar
- Department of Electrical Engineering (ESAT), Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium
- Thin Film PV Technology─Partner in Solliance, Imec, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | | | - Yinghuan Kuang
- Thin Film PV Technology─Partner in Solliance, Imec, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Bart Ruttens
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Jan D'Haen
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | | | | | - Yaser Abdulraheem
- Department of Electrical Engineering, Kuwait University, Safat 13060, Kuwait
| | - Tom Aernouts
- Thin Film PV Technology─Partner in Solliance, Imec, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
| | - Yiqiang Zhan
- Center for Micro Nano Systems, School of Information Science and Technology (SIST), Fudan University, Shanghai 200433, P. R. China
- Academy for Engineering & Technology (FAET), Fudan University, 200433 Shanghai, P. R. China
| | - Jef Poortmans
- Department of Electrical Engineering (ESAT), Katholieke Universiteit Leuven, Kasteelpark Arenberg 10, 3001 Leuven, Belgium
- Thin Film PV Technology─Partner in Solliance, Imec, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- EnergyVille, imo-imomec, Thor Park 8320, Genk 3600, Belgium
- Hasselt University, imo-imomec, Martelarenlaan 42, Hasselt 3500, Belgium
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18
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Sun L, Zhang C, Yan L, Gao L, Ma T. Praseodymium-doped triple-cation perovskite layer for enhanced photovoltaic performance. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2021.122826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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19
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Li Y, Xu W, Mussakhanuly N, Cho Y, Bing J, Zheng J, Tang S, Liu Y, Shi G, Liu Z, Zhang Q, Durrant JR, Ma W, Ho-Baillie AWY, Huang S. Homologous Bromides Treatment for Improving the Open-Circuit Voltage of Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106280. [PMID: 34741474 DOI: 10.1002/adma.202106280] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 10/14/2021] [Indexed: 06/13/2023]
Abstract
The power conversion efficiency (PCE) of solution-processed organic-inorganic mixed halide perovskite solar cells has achieved rapid improvement. However, it is imperative to minimize the voltage deficit (Woc = Eg /q - Voc ) for their PCE to approach the theoretical limit. Herein, the strategy of depositing homologous bromide salts on the perovskite surface to achieve a surface and bulk passivation for the fabrication of solar cells with high open-circuit voltage is reported. Distinct from the conclusions given by previous works, that homologous bromides such as FABr only react with PbI2 to form a large-bandgap perovskite layer on top of the original perovskite, this work shows that the bromide also penetrates the perovskite film and passivates the perovskite in the bulk. This is confirmed by the small-bandgap enlargement observed by absorbance and photoluminescence, and the bromide element ratio increasing in the bulk by time-of-flight secondary-ion mass spectrometry and depth-resolved X-ray photoelectron spectroscopy. Furthermore, a clear suppression of non-radiative recombination is confirmed by a variety of characterization methods. This work provides a simple and universal way to reduce the Woc of single-junction perovskite solar cells and it will also shed light on developing other high-performance optoelectronic devices, including perovskite-based tandems and light-emitting diodes.
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Affiliation(s)
- Yong Li
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney, 2052, Australia
| | - Weidong Xu
- Department of Chemistry and Centre for Processable Electronics, Imperial College, London, W12 0BZ, UK
| | - Nursultan Mussakhanuly
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney, 2052, Australia
| | - Yongyoon Cho
- Division of Materials Science, Nara Institute of Science and Technology, Ikoma, Nara, 630-0192, Japan
| | - Jueming Bing
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney, 2052, Australia
- School of Physics and University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Jianghui Zheng
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney, 2052, Australia
- School of Physics and University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Shi Tang
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney, 2052, Australia
- School of Physics and University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Yang Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China
| | - Guozheng Shi
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China
| | - Zeke Liu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China
| | - Qing Zhang
- Vacuum Interconnected Nanotech Workstation, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu, 215123, China
| | - James R Durrant
- Department of Chemistry and Centre for Processable Electronics, Imperial College, London, W12 0BZ, UK
- SPECIFIC IKC, College of Engineering, Swansea University, Bay Campus, Fabian Way, Swansea, SA1 8EN, UK
| | - Wanli Ma
- Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, 215123, China
| | - Anita W Y Ho-Baillie
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney, 2052, Australia
- School of Physics and University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Shujuan Huang
- Australian Centre for Advanced Photovoltaics, School of Photovoltaic and Renewable Energy Engineering, University of New South Wales (UNSW), Sydney, 2052, Australia
- School of Engineering, Macquarie University, Sydney, 2109, Australia
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20
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Zhao L, Li Q, Hou CH, Li S, Yang X, Wu J, Zhang S, Hu Q, Wang Y, Zhang Y, Jiang Y, Jia S, Shyue JJ, Russell TP, Gong Q, Hu X, Zhu R. Chemical Polishing of Perovskite Surface Enhances Photovoltaic Performances. J Am Chem Soc 2022; 144:1700-1708. [PMID: 35041406 DOI: 10.1021/jacs.1c10842] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The benefits of excess PbI2 on perovskite crystal nucleation and growth are countered by the photoinstability of interfacial PbI2 in perovskite solar cells (PSCs). Here we report a simple chemical polishing strategy to rip PbI2 crystals off the perovskite surface to decouple these two opposing effects. The chemical polishing results in a favorable perovskite surface exhibiting enhanced luminescence, prolonged carrier lifetimes, suppressed ion migration, and better energy level alignment. These desired benefits translate into increased photovoltages and fill factors, leading to high-performance mesostructured formamidinium lead iodide-based PSCs with a champion efficiency of 24.50%. As the interfacial ion migration paths and photodegradation triggers, dominated by PbI2 crystals, were eliminated, the hysteresis of the PSCs was suppressed and the device stability under illumination or humidity stress was significantly improved. Moreover, this new surface polishing strategy can be universally applicable to other typical perovskite compositions.
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Affiliation(s)
- 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
| | - Qiuyang 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
| | - Cheng-Hung Hou
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - 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
| | - 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
| | - Jiang Wu
- Peking University Yangtze Delta Institute of Optoelectronics, Nantong, Jiangsu 226010, China
| | - Siyang 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
| | - Qin Hu
- School of Microelectronics, University of Science and Technology of China, Hefei, Anhui 230026, 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
| | - 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
| | - Yufeng Jiang
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Shuang Jia
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
| | - Jing-Jong Shyue
- Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan
| | - Thomas P Russell
- Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.,Polymer Science and Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003, United States
| | - 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
| | - Xiaoyong Hu
- 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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21
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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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22
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Wei Q, Chang D, Ye Z, Li X, Zan L, Gao L, Fu F, Yang D. Giant improvement of performances of perovskite solar cells via component engineering. J Colloid Interface Sci 2020; 588:393-400. [PMID: 33422788 DOI: 10.1016/j.jcis.2020.12.046] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 11/17/2022]
Abstract
The absorption layer is a crucial factor for high-performance perovskite solar cells. In this work, the influence of the two components, methylammonium iodide (MAI) and formamidinium iodide (FAI) on the morphology, optical absorption and photovoltaic performances was systematically investigated. The results revealed that the surface morphologies of MAI/FAI based perovskite films were rougher, and the grain sizes became larger with increasing the FAI concentration. UV-Vis and photoluminescence spectra showed that there was a red shift with enhancing the FAI concentration. By the effective doping of FAI into the pristine MAI based perovskite film, the formation of a δ-FAPbI3 was successfully inhibited. As a result, the power conversion efficiency (PCE) of the perovskite solar cells based on mixed absorption layers was improved by about 27% compared to the pristine MAI based perovskite device.
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Affiliation(s)
- Qingbo Wei
- Key Laboratory of Chemical Reaction Engineering of Shaanxi Province, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Dongpu Chang
- Key Laboratory of Chemical Reaction Engineering of Shaanxi Province, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Zhangwen Ye
- Key Laboratory of Chemical Reaction Engineering of Shaanxi Province, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Xue Li
- Key Laboratory of Chemical Reaction Engineering of Shaanxi Province, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Lingxing Zan
- Key Laboratory of Chemical Reaction Engineering of Shaanxi Province, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Loujun Gao
- Key Laboratory of Chemical Reaction Engineering of Shaanxi Province, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Feng Fu
- Key Laboratory of Chemical Reaction Engineering of Shaanxi Province, College of Chemistry & Chemical Engineering, Yan'an University, Yan'an 716000, PR China
| | - Dong Yang
- Materials Science and Engineering, Penn State, University Park, PA 16802, USA.
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