1
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Kadri L, Carta M, Lampronti G, Delogu F, Tajber L. Mechanochemically Induced Solid-State Transformations of Levofloxacin. Mol Pharm 2024; 21:2838-2853. [PMID: 38662637 DOI: 10.1021/acs.molpharmaceut.4c00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Levofloxacin hemihydrate (LVXh) is a complex fluoroquinolone drug that exists in both hydrated and anhydrous/dehydrated forms. Due to the complexity of such a compound, the primary aim of this study was to investigate the amorphization capabilities and solid-state transformations of LVXh when exposed to mechanical treatment using ball milling. Spray drying was utilized as a comparative method for investigating the capabilities of complete LVX amorphous (LVXam) formation. The solid states of the samples produced were comprehensively characterized by powder X-ray diffraction, thermal analysis, infrared spectroscopy, Rietveld method, and dynamic vapor sorption. The kinetics of the process and the quantification of phases at different time points were conducted by Rietveld refinement. The impact of the different mills, milling conditions, and parameters on the composition of the resulting powders was examined. A kinetic investigation of samples produced using both mills disclosed that it was in fact possible to partially amorphize LVXh upon mechanical treatment. It was discovered that LVXh first transformed to the anhydrous/dehydrated form γ (LVXγ), as an intermediate phase, before converting to LVXam. The mechanism of LVXam formation by ball milling was successfully revealed, and a new method of forming LVXγ and LVXam by mechanical forces was developed. Spray drying from water depicted that complete amorphization of LVXh was possible. The amorphous form of LVX had a glass transition temperature of 80 °C. The comparison of methods highlighted that the formation of LVXam is thus both mechanism- and process-dependent. Dynamic vapor sorption studies of both LVXam samples showed comparable stability properties and crystallized to the most stable hemihydrate form upon analysis. In summary, this work contributed to the detailed understanding of solid-state transformations of essential fluoroquinolones while employing greener and more sustainable manufacturing methods.
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Affiliation(s)
- Lena Kadri
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, College Green, Dublin 2 D02 PN40, Ireland
- The Science Foundation Ireland Research Centre for Pharmaceuticals (SSPC), Limerick V94 T9PX, Ireland
| | - Maria Carta
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, CSGI Research Unit, via Marengo 2, Cagliari 09123, Italy
| | - Giulio Lampronti
- Department of Materials Science & Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambridge CB3 0FS, United Kingdom
| | - Francesco Delogu
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, CSGI Research Unit, via Marengo 2, Cagliari 09123, Italy
| | - Lidia Tajber
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, College Green, Dublin 2 D02 PN40, Ireland
- The Science Foundation Ireland Research Centre for Pharmaceuticals (SSPC), Limerick V94 T9PX, Ireland
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2
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Cheng Q, You S, Zhang W, Xie M, Yue T, Tian C, Zhang H, Wei Z, Li X, Zhang Y, Zhou H. Single Crystal Seed Induced Epitaxial Growth Stabilizes α-FAPbI 3 in Perovskite Solar Cells. NANO LETTERS 2024; 24:5308-5316. [PMID: 38647008 DOI: 10.1021/acs.nanolett.4c00993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
FAPbI3 stands out as an ideal candidate for the photoabsorbing layer of perovskite solar cells (PSCs), showcasing outstanding photovoltaic properties. Nonetheless, stabilizing photoactive α-FAPbI3 remains a challenge due to the lower formation energy of the competitive photoinactive δ-phase. In this study, we employ tetraethylphosphonium lead tribromide (TEPPbBr3) single crystals as templates for the epitaxial growth of PbI2. The strategic use of TEPPbBr3 optimizes the evolution of intermediates and the crystallization kinetics of perovskites, leading to high-quality and phase-stable α-FAPbI3 films. The TEPPbBr3-modified perovskite exhibits optimized carrier dynamics, yielding a champion efficiency of 25.13% with a small voltage loss of 0.34 V. Furthermore, the target device maintains 90% of its initial PCE under maximum power point (MPP) tracking over 1000 h. This work establishes a promising pathway through single crystal seed based epitaxial growth for achieving satisfactory crystallization regulation and phase stabilization of α-FAPbI3 perovskites toward high-efficiency and stable PSCs.
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Affiliation(s)
- Qian Cheng
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Shuai You
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Weichuan Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Meiling Xie
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Tong Yue
- School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
| | - Chenyang Tian
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Hong Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Zhixiang Wei
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Xiong Li
- Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, 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, National Center for Nanoscience and Technology, Beijing 100190, China
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3
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Li ZZ, Guo C, Lv W, Huang P, Zhang Y. Machine Learning-Enabled Optical Architecture Design of Perovskite Solar Cells. J Phys Chem Lett 2024; 15:3835-3842. [PMID: 38557032 DOI: 10.1021/acs.jpclett.4c00320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Perovskite solar cells, emerging as a cutting-edge solar energy technology, have demonstrated a power conversion efficiency (PCE) of >26%, which is below the theoretical limit of 33%. This study, employing a combination of neural network models and high-throughput simulation calculations, taking the single-junction FAPbI3 cell as an illustrative example, indicates that a pyramid structure, in comparison of a planar one, can increase the highest Jsc to 27.4 mA/cm2 and the PCE to 28.4%. Both Jsc and PCE surpass the currently reported experimental results. The optimized periodicity and tilt angle of the pyramid structure align with the textured structure of crystalline silicon solar cells. These results underscore the substantial development potential of neural network inverse design based on high-throughput calculations in the field of optoelectronic devices and provide theoretical guidance for the design of monolithic perovskite-silicon tandem solar cells.
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Affiliation(s)
- Zong-Zheng Li
- Beijing Key Laboratory of Nanophotonics & Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing 100081, China
- Research Institute of Frontier Science, Southwest Jiaotong University, Chengdu 610031, China
| | - Chaorong Guo
- Research Institute of Frontier Science, Southwest Jiaotong University, Chengdu 610031, China
| | - Wenlei Lv
- Research Institute of Frontier Science, Southwest Jiaotong University, Chengdu 610031, China
| | - Peng Huang
- Research Institute of Frontier Science, Southwest Jiaotong University, Chengdu 610031, China
| | - Yongyou Zhang
- Beijing Key Laboratory of Nanophotonics & Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing 100081, China
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4
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Zhu P, Wang D, Zhang Y, Liang Z, Li J, Zeng J, Zhang J, Xu Y, Wu S, Liu Z, Zhou X, Hu B, He F, Zhang L, Pan X, Wang X, Park NG, Xu B. Aqueous synthesis of perovskite precursors for highly efficient perovskite solar cells. Science 2024; 383:524-531. [PMID: 38301009 DOI: 10.1126/science.adj7081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 12/22/2023] [Indexed: 02/03/2024]
Abstract
High-purity precursor materials are vital for high-efficiency perovskite solar cells (PSCs) to reduce defect density caused by impurities in perovskite. In this study, we present aqueous synthesized perovskite microcrystals as precursor materials for PSCs. Our approach enables kilogram-scale mass production and synthesizes formamidinium lead iodide (FAPbI3) microcrystals with up to 99.996% purity, with an average value of 99.994 ± 0.0015%, from inexpensive, low-purity raw materials. The reduction in calcium ions, which made up the largest impurity in the aqueous solution, led to the greatest reduction in carrier trap states, and its deliberate introduction was shown to decrease device performance. With these purified precursors, we achieved a power conversion efficiency (PCE) of 25.6% (25.3% certified) in inverted PSCs and retained 94% of the initial PCE after 1000 hours of continuous simulated solar illumination at 50°C.
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Affiliation(s)
- Peide Zhu
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
| | - Deng Wang
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong
| | - Yong Zhang
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zheng Liang
- Key Laboratory of Photovoltaic and Energy Conservation Material, Institute of Solid-State Physics, Hefei Institutes of Physical Science (HIPS), Chinese Academy of Sciences, Hefei 230031, China
| | - Jingbai Li
- Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, Shenzhen 518055, China
| | - Jie Zeng
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong
| | - Jiyao Zhang
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yintai Xu
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
| | - Siying Wu
- Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhixin Liu
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xianyong Zhou
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bihua Hu
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
| | - Feng He
- State Key Laboratory on Tunable Laser Technology, School of Electronic and Information Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Lin Zhang
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics, Central South University, Changsha 410083, China
| | - Xu Pan
- Key Laboratory of Photovoltaic and Energy Conservation Material, Institute of Solid-State Physics, Hefei Institutes of Physical Science (HIPS), Chinese Academy of Sciences, Hefei 230031, China
| | - Xingzhu Wang
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, China
- Shenzhen Putai Technology Co., Ltd, Shenzhen 518110, China
| | - Nam-Gyu Park
- School of Chemical Engineering and Center for Antibonding Regulated Crystals, Sungkyunkwan University (SKKU), Suwon 16419, Republic of Korea
- SKKU Institute of Energy Science & Technology (SIEST), Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Baomin Xu
- Department of Materials Science and Engineering and Shenzhen Engineering Research and Development Center for Flexible Solar Cells, Southern University of Science and Technology, Shenzhen 518055, China
- Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China
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5
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Mandal TN, Heo JH, Im SH, Kim WS. Highly Efficient and Stable Inverted Perovskite Solar Cell Using Pure δ-FAPbI 3 Single Crystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2305246. [PMID: 37635119 DOI: 10.1002/smll.202305246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/27/2023] [Indexed: 08/29/2023]
Abstract
Pure δ-formamidinium lead triiodide (δ-FAPbI3 ) single crystal for highly efficient perovskite solar cell (PCS) with long-term stability is prepared by a new method consisting of liquid phase reaction of FAI and PbI2 in N,N-dimethyl formamide and antisolvent crystallization using acetonitrile. In this method, the incorporation of any impurity into the crystal is excluded by the molecular recognition of the crystal growth site. This pure crystal is used to fabricate α-FAPbI3 inverted PSCs which showed excellent power conversion efficiency (PCE) due to much-reduced trap-states. The champion device exhibited a high PCE of 23.48% under the 1-Sun condition. Surface-treated devices with 3-(aminomethyl)pyridine showed a significantly improved PCE of 25.07%. In addition, the unencapsulated device maintained 97.22% of its initial efficiency under continuous 1-Sun illumination for 1,000 h at 85 °C in an N2 atmosphere ensuring long-term thermal and photo stabilities of PSCs, whereas the control device kept only 89.93%.
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Affiliation(s)
- Tarak Nath Mandal
- Functional Crystallization Center, Department of Chemical Engineering (Integrated Engineering), Kyung Hee University, Yongin, Gyeonggi-do, 17104, Republic of Korea
| | - Jin Hyuck Heo
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-Ro, Seongbuk-Gu, Seoul, 02841, Republic of Korea
| | - Sang Hyuk Im
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-Ro, Seongbuk-Gu, Seoul, 02841, Republic of Korea
| | - Woo-Sik Kim
- Functional Crystallization Center, Department of Chemical Engineering (Integrated Engineering), Kyung Hee University, Yongin, Gyeonggi-do, 17104, Republic of Korea
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6
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Yukta, Chavan RD, Mahapatra A, Prochowicz D, Yadav P, Iyer PK, Satapathi S. Improved Efficiency and Stability in 1,5-Diaminonaphthalene Iodide-Passivated 2D/3D Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2023; 15:53351-53361. [PMID: 37956451 DOI: 10.1021/acsami.3c09887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2023]
Abstract
Engineering multidimensional two-dimensional/three-dimensional (2D/3D) perovskite interfaces as light harvesters has recently emerged as a potential strategy to obtain a higher photovoltaic performance in perovskite solar cells (PSCs) with enhanced environmental stability. In this study, we utilized the 1,5-diammonium naphthalene iodide (NDAI) bulky organic spacer for interface modification in 3D perovskites for passivating the anionic iodide/uncoordinated Pb2+ vacancies as well as facilitating charge carrier transfer by improving the energy band alignment at the perovskite/HTL interface. Consequently, the NDAI-treated 2D/3D PSCs showed an enhanced open-circuit voltage and fill factor with a remarkable power conversion efficiency (PCE) of 21.48%. In addition, 2D/3D perovskite devices without encapsulation exhibit a 77% retention of their initial output after 1000 h of aging under 50 ± 5% relative humidity. Furthermore, even after 200 h of storage in 85 °C thermal stress, the devices maintain 60% of their initial PCE. The defect passivation and interface modification mechanism were studied in detail by UV vis absorption, photoluminescence spectroscopy, atomic force microscopy (AFM), scanning electron microscopy (SEM), Fourier transform infrared (FTIR), X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy (UPS), solid-state NMR, space-charge-limited current (SCLC) mobility measurement, and impedance spectroscopy. This study provides a promising path for perovskite surface modification in slowing their degradation against external stimuli, providing a future direction for increasing the perovskite device efficiency and durability.
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Affiliation(s)
- Yukta
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar 247667, Uttarakhand, India
| | - Rohit D Chavan
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Apurba Mahapatra
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Daniel Prochowicz
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw 01-224, Poland
| | - Pankaj Yadav
- Department of Solar Energy, School of Technology, Pandit Deendayal Energy University, Gandhinagar 382007, Gujarat, India
| | - Parameswar K Iyer
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India
| | - Soumitra Satapathi
- Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Haridwar 247667, Uttarakhand, India
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7
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Wang Y, Shi Z, Wang Y, Khan QU, Li X, Deng L, Pan Y, Zhang X, Yang Y, Yue X, Hu T, Liu F, Wang H, Li C, Liu K, Yuan W, Cong C, Yu A, Zhan Y. Intermediate Phase Free α-FAPbI 3 Perovskite via Green Solvent Assisted Perovskite Single Crystal Redissolution Strategy. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2302298. [PMID: 37578639 DOI: 10.1002/adma.202302298] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 08/07/2023] [Indexed: 08/15/2023]
Abstract
Perovskite single-crystal redissolution (PSCR) strategy is highly desired for efficient formamidinium lead triiodide (FAPbI3 ) perovskite photovoltaics with enhanced phase purity, improved film quality, low trap-state density, and good stability. However, the phase transition and crystallization dynamics of FAPbI3 remain unclear in the PSCR process compared to the conventional fabrication from the mixing of precursor materials. In this work, a green-solvent-assisted (GSA) method is employed to synthesize centimeter-sized α-FAPbI3 single crystals, which serve as the high-purity precursor to fabricate perovskite films. The α-FAPbI3 PSCR strategy facilitates direct α-phase formation and inhibits the complex intermediate phases monitored by in situ grazing-incidence wide-angle X-ray scattering. Moreover, the α-phase stability is prolonged due to the relaxation of the residual lattice strain through the isotropic orientation phase growth. Consequently, the GSA-assisted PSCR strategy effectively promotes crystallization and suppresses non-radiative recombination in perovskite solar cells, which boosts the device efficiency from 22.08% to 23.92% with significantly enhanced open circuit voltage. These findings provide deeper insight into the PSCR process in terms of its efficacy in phase formation and lattice strain release. The green low-cost solvent may also offer a new and ideal solvent candidate for large-scale production of perovskite photovoltaics.
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Affiliation(s)
- Yaxin Wang
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Zejiao Shi
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Yanyan Wang
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Qudrat Ullah Khan
- Zhongshan-Fudan Joint Innovation Center, Zhongshan, Guangdong, 528437, China
| | - Xiaoguo Li
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Liangliang Deng
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Yiyi Pan
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Xin Zhang
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Yingguo Yang
- Shanghai Synchrotron Radiation Facility (SSRF), Chinese Academy of Sciences, Shanghai, 201204, China
| | - Xiaofei Yue
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Tianxiang Hu
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Fengcai Liu
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Haoliang Wang
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Chongyuan Li
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Kai Liu
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Wei Yuan
- Institute of Optoelectronics, Fudan University, Shanghai, 200438, China
| | - Chunxiao Cong
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Anran Yu
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
| | - Yiqiang Zhan
- Center of Micro Nano System, School of Information Science and Technology, Fudan University, Shanghai, 200438, China
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8
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Li S, Xia J, Wen Z, Gu H, Guo J, Liang C, Pan H, Wang X, Chen S. The Formation Mechanism of (001) Facet Dominated α-FAPbI 3 Film by Pseudohalide Ions for High-Performance Perovskite Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2300056. [PMID: 37088801 DOI: 10.1002/advs.202300056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/10/2023] [Indexed: 05/03/2023]
Abstract
Formamidinium lead triiodide (α-FAPbI3 ) has been widely used in high-efficiency perovskite solar cells due to its small band gap and excellent charge-transport properties. Recently, some additives show facet selectivity to generate a (001) facet-dominant film during crystallization. However, the mechanism to realize such (001) facet selectivity is not fully understood. Here, the authors attempted to use three ammonia salts NH4 X (X are pseudohalide anions) to achieve better (001) facet selectivity in perovskite crystallization and improved crystallinity. After addition, the (001) facet dominance is generally increased with the best effect from SCN- anions. The theoretical calculation revealed three mechanisms of such improvements. First, pseudohalide anions have larger binding energy than the iodine ion to bind the facets including (110), (210), and (111), slowing down the growth of these facets. The large binding energy also reduces nucleation density and improves crystallinity. Second, pseudohalide ions improve phase purity by increasing the formation energies of the δ-phase and other hexagonal polytypes, retarding the α- to δ-phase transition. Third, the strong binding of these anions can also effectively passivate the iodine vacancies and suppress nonradiative recombination. As a result, the devices show a power conversion efficiency of 24.11% with a Voc of 1.181 V.
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Affiliation(s)
- Shengwen Li
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Junmin Xia
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Zhaorui Wen
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Hao Gu
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Jia Guo
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Chao Liang
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Hui Pan
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
| | - Xingzhu Wang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong Province, 418055, China
| | - Shi Chen
- Institute of Applied Physics and Materials Engineering, University of Macau, Macao, Macao SAR, 999078, China
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9
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Peng W, Mao K, Cai F, Meng H, Zhu Z, Li T, Yuan S, Xu Z, Feng X, Xu J, McGehee MD, Xu J. Reducing nonradiative recombination in perovskite solar cells with a porous insulator contact. Science 2023; 379:683-690. [PMID: 36795834 DOI: 10.1126/science.ade3126] [Citation(s) in RCA: 71] [Impact Index Per Article: 71.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Inserting an ultrathin low-conductivity interlayer between the absorber and transport layer has emerged as an important strategy for reducing surface recombination in the best perovskite solar cells. However, a challenge with this approach is a trade-off between the open-circuit voltage (Voc) and the fill factor (FF). Here, we overcame this challenge by introducing a thick (about 100 nanometers) insulator layer with random nanoscale openings. We performed drift-diffusion simulations for cells with this porous insulator contact (PIC) and realized it using a solution process by controlling the growth mode of alumina nanoplates. Leveraging a PIC with an approximately 25% reduced contact area, we achieved an efficiency of up to 25.5% (certified steady-state efficiency 24.7%) in p-i-n devices. The product of Voc × FF was 87.9% of the Shockley-Queisser limit. The surface recombination velocity at the p-type contact was reduced from 64.2 to 9.2 centimeters per second. The bulk recombination lifetime was increased from 1.2 to 6.0 microseconds because of improvements in the perovskite crystallinity. The improved wettability of the perovskite precursor solution allowed us to demonstrate a 23.3% efficient 1-square-centimeter p-i-n cell. We demonstrate here its broad applicability for different p-type contacts and perovskite compositions.
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Affiliation(s)
- Wei Peng
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Kaitian Mao
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Fengchun Cai
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Hongguang Meng
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Zhengjie Zhu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Tieqiang Li
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Shaojie Yuan
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Zijian Xu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xingyu Feng
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Jiahang Xu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Michael D McGehee
- Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, USA
| | - Jixian Xu
- Hefei National Research Center for Physical Sciences at the Microscale, CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, China.,Institute of Energy, Hefei Comprehensive National Science Center, Hefei 230051, China
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10
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Vugrin L, Carta M, Lukin S, Meštrović E, Delogu F, Halasz I. Mechanochemical reaction kinetics scales linearly with impact energy. Faraday Discuss 2023; 241:217-229. [PMID: 36149388 DOI: 10.1039/d2fd00083k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Inelastic collisions of the milling media in ball milling provide energy to the reaction mixture required for chemical transformations. However, movement of the milling media also results in physical mixing of reactants, which may enable a chemical reaction too. Separating the two contributions is challenging and gaining a direct insight into the purely mechanochemically driven reactivity is accordingly hindered. Here, we have applied in situ reaction monitoring by Raman spectroscopy to a suitable, purely mechanically activated, chemical reaction and combined kinetic analysis with numerical simulations to access experimentally unattainable milling parameters. The breadth of milling conditions allows us to establish a linear relationship between the reaction rate and the energy dose received by the sample. Consequently, different kinetic profiles in time scale to the same profile when plotted against the energy dose, which increases with the ball mass, the average ball velocity and the frequency of impacts, but decreases with the hardness of the milling media due to more elastic collisions. The fundamental relationship between kinetics and energy input provides the basis for planning and optimisation of mechanochemical reactions and is essential for transferability of mechanochemical reactions across different milling platforms.
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Affiliation(s)
- Leonarda Vugrin
- Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia.
| | - Maria Carta
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, CSGI Cagliari research unit, via Marengo 2, 09123 Cagliari, Italy.
| | - Stipe Lukin
- Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia.
| | - Ernest Meštrović
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia
| | - Francesco Delogu
- Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, CSGI Cagliari research unit, via Marengo 2, 09123 Cagliari, Italy.
| | - Ivan Halasz
- Ruđer Bošković Institute, Bijenička c. 54, 10000 Zagreb, Croatia.
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11
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Wu Z, Liu X, Zhong H, Wu Z, Chen H, Su J, Xu Y, Wang X, Li X, Lin H. Natural Amino Acid Enables Scalable Fabrication of High-Performance Flexible Perovskite Solar Cells and Modules with Areas over 300 cm 2. SMALL METHODS 2022; 6:e2200669. [PMID: 36354166 DOI: 10.1002/smtd.202200669] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 09/25/2022] [Indexed: 06/16/2023]
Abstract
Upscaling large-area formamidinium (FA)-based perovskite solar cells (PSCs) has been considered as one of the most promising routes for the commercial applications of this rising photovoltaics technology. Here, a natural amino acid, phenylalanine (Phe), is introduced to regulate the nucleation and crystal growth process of the large-scale coating of FA-based perovskite films. Better film coverage and larger grain sizes are observed after adding Phe. Moreover, it is found that Phe can effectively passivate defects within perovskite films and suppress the nonradiative recombination due to the strong interaction with under-coordinated Pb2+ ions in the perovskite films. Rigid PSCs based on the blade-coated perovskite films containing Phe obtain a champion efficiency of 21.95%. The corresponding unencapsulated devices also exhibit excellent ambient stability, retaining 95% of their initial efficiencies after storage in the glovebox at 20 °C for 1000 h. Further, the strategy is applied to fabricate flexible PSCs and modules on polyethylene terephthalate/indium doped tin oxide substrates via slot-die coating. Phe modified flexible devices achieve outstanding efficiencies of 20.21%, 12.1%, and 11.2% with aperture areas of 0.10, 185, and 333 cm2 , respectively. The strategy here has paved a promising way for the large-scale production of flexible PSCs.
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Affiliation(s)
- Ziyi Wu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Xuanling Liu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Han Zhong
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Zhihao Wu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Hao Chen
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Jiazheng Su
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Youcheng Xu
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Xuanyu Wang
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
| | - Xin Li
- School of Electronic Science and Engineering, Xiamen University, Xiamen, 361005, P. R. China
| | - Hong Lin
- State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, P. R. China
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12
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Fei F, Gu L, Xu Y, Du K, Zhou X, Dong X, Chen X, Yuan N, Wang S, Ding J. Method to Inhibit Perovskite Solution Aging: Induced by Perovskite Microcrystals. ACS APPLIED MATERIALS & INTERFACES 2022; 14:52960-52970. [PMID: 36398588 DOI: 10.1021/acsami.2c16242] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The main feature of perovskite solar cells (PSCs) is that the perovskite layer can be fabricated by the solution method, while the long-time stability of the precursor solution is critical. During the fabrication of formamidinium (FA)-based PSCs, the introduction of methylammonium cations (MA+) in the precursor solution can accelerate the crystallization process of the perovskite layer, stabilize the perovskite structure, and passivate defects. However, MA+ is easy to deprotonate to generate MA molecules, and it then condensates with formamidinium iodide (FAI) to form adverse byproducts. Herein, perovskite microcrystals (MCs) for preparing perovskite precursor solution were investigated in details, which can improve the long-term stability of the precursor solution and the perovskite film. We found that FA+ in MC solution was confined in the three-dimensional scaffold, preventing it from reacting with MA+. Meanwhile, MCs can effectively promote nucleation to form large grains in perovskite films. The photoelectric conversion efficiency (PCE) of the device with 3 week-aged MC solution remains at 90% and is only reduced by 10% after 160 h of continuous operation, which far exceeds the performance of the PCE of those based on mixed monomer powder (MP) solution. Therefore, perovskite MCs, an effective reactive inhibitor to improve the stability of perovskite precursor solutions, are of great significance for large-scale commercial fabrication.
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Affiliation(s)
- Fei Fei
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou213164, China
| | - Leilei Gu
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou213164, China
| | - Yibo Xu
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou213164, China
| | - Kaihuai Du
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou213164, China
| | - Xiaoshuang Zhou
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou213164, China
| | - Xu Dong
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou213164, China
- School of Mechanical Engineering, Yangzhou University, Yangzhou225127, China
| | - Xingze Chen
- Suzhou Institute of Nano-Technology and Nano-Bionics, Chinese Academy of Sciences, Suzhou215123, China
| | - Ningyi Yuan
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou213164, China
| | - Shubo Wang
- School of Materials Science and Engineering, Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou213164, China
| | - Jianning Ding
- School of Mechanical Engineering, Yangzhou University, Yangzhou225127, China
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13
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Huang Y, Liang J, Zhang Z, Zheng Y, Wu X, Tian C, Zhou Z, Wang J, Yang Y, Sun A, Liu Y, Tang C, Chen Z, Chen CC. Low-Temperature Phase-Transition for Compositional-Pure α-FAPbI 3 Solar Cells with Low Residual-Stress and High Crystal-Orientation. SMALL METHODS 2022; 6:e2200933. [PMID: 36161787 DOI: 10.1002/smtd.202200933] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 09/01/2022] [Indexed: 06/16/2023]
Abstract
Transition of δ-phase formamidinium lead triiodide (δ-FAPbI3 ) to pure α-phase FAPbI3 (α-FAPbI3 ) typically requires high processing temperature (150 °C), which often results in unavoidable residual stress. Besides, using methylammonium chloride (MACl) as additive in fabrication will cause MA residue in the film, compromising the compositional purity. Here, a stress-released and compositional-pure α-FAPbI3 thin-film is fabricated using 3-chloropropylammonium chloride (Cl-PACl) by two-step annealing. The 2D template of n = 2 can preferentially form in perovskite with the introduction of Cl-PACl at a temperature as low as 80 °C. Such a 2D template can guide the free components to form ordered α-FAPbI3 and promote the transition of the formed δ-FAPbI3 to α-FAPbI3 by reducing the phase transition energy. As a result, the obtained perovskite films via low-temperature phase-transition have a high degree of crystal orientation and reduced residual stress. More importantly, most of the Cl-PACl is volatilized during the subsequent high-temperature annealing process accompanied by the disintegration of the 2D templates. The residual trace of Cl-PA+ is mainly concentrated at the grain boundary near the perovskite surface layer, stabilizing α-FAPbI3 and passivating defects. Perovskite solar cell based on pure α-FAPbI3 achieves a power conversion efficiency of 23.03% with excellent phase stability and photo-stability.
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Affiliation(s)
- Ying Huang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Jianghu Liang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Zhanfei Zhang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Yiting Zheng
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Xueyun Wu
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Congcong Tian
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Zhuang Zhou
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Jianli Wang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Yajuan Yang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Anxin Sun
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Yuan Liu
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Chen Tang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
| | - Zhenhua Chen
- Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201800, P. R. China
| | - Chun-Chao Chen
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai, 20024, P. R. China
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14
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Zhou Z, Liang J, Zhang Z, Zheng Y, Wu X, Tian C, Huang Y, Wang J, Yang Y, Sun A, Chen Z, Chen CC. Direct In Situ Conversion of Lead Iodide to a Highly Oriented and Crystallized Perovskite Thin Film via Sequential Deposition for 23.48% Efficient and Stable Photovoltaic Devices. ACS APPLIED MATERIALS & INTERFACES 2022; 14:49886-49897. [PMID: 36310522 DOI: 10.1021/acsami.2c16579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
In the sequential deposition method of perovskite films, the crystallinity and microstructure of PbI2 are often sacrificed to solve the problem of an incomplete reaction between organic halide and lead halide. As a result, the crystal orientation of the perovskite film prepared by the sequential deposition method is generally worse than that of the perovskite film prepared by a one-step antisolvent method. Here, we preplaced formamidine formate (FAFa) on the buried interface to regulate the formation mechanism from PbI2 to perovskite. As shown by the XPS measurement of the perovskite buried interface, the HCOO- anion of FAFa first partially replaces I- to coordinate with Pb2+. With the subsequent annealing process, some HCOO- anions were released and migrated upward, which promoted the recrystallization of PbI2, obtaining a PbI2 film with enhanced crystallinity and orientation. Additionally, the lift-off process proves that the HCOO- anions suppress the anion vacancy defects enriched at the buried interface and promote charge transport because the HCOO- anions are small enough to adapt to the iodide vacancy. Grazing incidence wide-angle X-ray scattering and X-ray diffraction measurements show that the in situ conversion mechanism is responsible for the PbI2-to-perovskite process, resulting in the highly oriented perovskite film without increasing the residual PbI2 content in the perovskite film. As a result, our strategies enabled a champion power conversion efficiency of 23.48% with improved storage stability and photostability. This work provides a new strategy to improve the crystallinity of sequential deposition perovskites without destabilizing the device due to more PbI2 residues.
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Affiliation(s)
- Zhuang Zhou
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Jianghu Liang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Zhanfei Zhang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Yiting Zheng
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Xueyun Wu
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Congcong Tian
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Ying Huang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Jianli Wang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Yajuan Yang
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Anxin Sun
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
| | - Zhenhua Chen
- Shanghai Synchrotron Radiation Facility (SSRF), Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai201800, P.R. China
| | - Chun-Chao Chen
- School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai20024, P.R. China
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15
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Fan W, Deng K, Shen Y, Bai Y, Li L. Moisture‐Accelerated Precursor Crystallisation in Ambient Air for High‐Performance Perovskite Solar Cells toward Mass Production. Angew Chem Int Ed Engl 2022; 61:e202211259. [DOI: 10.1002/anie.202211259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Indexed: 11/09/2022]
Affiliation(s)
- Weili Fan
- Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and Technology University of Science and Technology Beijing 100083 P. R. China
| | - Kaimo Deng
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Soochow University Suzhou 215006 P. R. China
| | - Ying Shen
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Soochow University Suzhou 215006 P. R. China
| | - Yang Bai
- Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and Technology University of Science and Technology Beijing 100083 P. R. China
| | - Liang Li
- School of Physical Science and Technology Jiangsu Key Laboratory of Thin Films Soochow University Suzhou 215006 P. R. China
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16
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Fan W, Deng K, Shen Y, Bai Y, Li L. Moisture Accelerated Precursor Crystallization in Ambient Air for High‐performance Perovskite Solar Cells toward Mass Production. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202211259] [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)
- Weili Fan
- University of Science and Technology Beijing Institute for Advanced Materials and Technology CHINA
| | - Kaimo Deng
- Soochow University School of Physical Science and Technology CHINA
| | - Ying Shen
- Soochow University School of Physical Science and Technology CHINA
| | - Yang Bai
- University of Science and Technology Beijing Institute for Advanced Materials and Technology CHINA
| | - Liang Li
- Soochow University No 1, Shizi street 215006 Suzhou CHINA
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17
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Niu T, Chao L, Dong X, Fu L, Chen Y. Phase-Pure α-FAPbI 3 for Perovskite Solar Cells. J Phys Chem Lett 2022; 13:1845-1854. [PMID: 35175056 DOI: 10.1021/acs.jpclett.1c04241] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Because of the narrow bandgap and superior thermal stability, FAPbI3 is considered the most promising perovskite material for high-performance single-junction PSCs. Nevertheless, the metastable properties of the photoactive α-FAPbI3 becomes a primary obstacle for the development of FA-based PSCs. The main reasons for the instability of α-FAPbI3 are the rotation disorder of the FA cation and large anisotropic lattice strain, which lead to the high formation energy of α-FAPbI3. In this Perspective, we review various strategies for preparing phase-pure α-FAPbI3, such as engineering, intermediate phase engineering, and dimensionality engineering. These strategies can stabilize α-FAPbI3 by reducing the system energy, regulating the phase transition process and energy barrier, reinforcing the lattice structure, and passivating film defects. In addition, we investigate fundamental challenges of α-FAPbI3 PSCs and propose our perspective on preparing high-quality and high-purity α-FAPbI3.
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Affiliation(s)
- Tingting Niu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, Jiangsu, China
| | - Lingfeng Chao
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, Jiangsu, China
| | - Xue Dong
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Li Fu
- Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics (IFE), and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, 127 West Youyi Road, Xi'an 710072, China
| | - Yonghua Chen
- Key Laboratory of Flexible Electronics (KLoFE) & Institute of Advanced Materials (IAM), Nanjing Tech University (NanjingTech), 30 South Puzhu Road, Nanjing 211816, Jiangsu, China
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