1
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Chan PF, Qin M, Su C, Ye L, Wang X, Wang Y, Guan X, Lu Z, Li G, Ngai T, Tsang SW, Zhao N, Lu X. iso-BAI Guided Surface Recrystallization for Over 14% Tin Halide Perovskite Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309668. [PMID: 38537163 PMCID: PMC11165555 DOI: 10.1002/advs.202309668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Indexed: 06/12/2024]
Abstract
Tin-based perovskite solar cells (PSCs) are promising environmentally friendly alternatives to their lead-based counterparts, yet they currently suffer from much lower device performance. Due to variations in the chemical properties of lead (II) and tin (II) ions, similar treatments may yield distinct effects resulting from differences in underlying mechanisms. In this work, a surface treatment on tin-based perovskite is conducted with a commonly employed ligand, iso-butylammonium iodide (iso-BAI). Unlike the passivation effects previously observed in lead-based perovskites, such treatment leads to the recrystallization of the surface, driven by the higher solubility of tin-based perovskite in common solvents. By carefully designing the solvent composition, the perovskite surface is effectively modified while preserving the integrity of the bulk. The treatment led to enhanced surface crystallinity, reduced surface strain and defects, and improved charge transport. Consequently, the best-performing power conversion efficiency of FASnI3 PSCs increases from 11.8% to 14.2%. This work not only distinguishes the mechanism of surface treatments in tin-based perovskites from that of lead-based counterparts, but also underscores the critical role in designing tailor-made strategies for fabricating efficient tin-based PSCs.
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Affiliation(s)
- Pok Fung Chan
- Department of PhysicsThe Chinese University of Hong KongNew TerritoriesHong Kong SAR999077China
| | - Minchao Qin
- Department of PhysicsThe Chinese University of Hong KongNew TerritoriesHong Kong SAR999077China
| | - Chun‐Jen Su
- National Synchrotron Radiation Research CenterHsinchu Science ParkHsinchu30076Taiwan
| | - Liping Ye
- Department of ChemistryThe Chinese University of Hong KongNew TerritoriesHong Kong SAR999077China
| | - Xuezhou Wang
- Department of Electronic EngineeringThe Chinese University of Hong KongNew TerritoriesHong Kong SAR999077China
| | - Yunfan Wang
- Department of Materials Science and EngineeringCity University of Hong KongKowloon TongHong Kong SAR999077China
| | - Xin Guan
- Department of ChemistryThe Chinese University of Hong KongNew TerritoriesHong Kong SAR999077China
| | - Zhen Lu
- Department of Electrical and Electronic EngineeringThe Hong Kong Polytechnic UniversityHung HomHong Kong SAR999077China
| | - Gang Li
- Department of Electrical and Electronic EngineeringThe Hong Kong Polytechnic UniversityHung HomHong Kong SAR999077China
| | - To Ngai
- Department of ChemistryThe Chinese University of Hong KongNew TerritoriesHong Kong SAR999077China
| | - Sai Wing Tsang
- Department of Materials Science and EngineeringCity University of Hong KongKowloon TongHong Kong SAR999077China
| | - Ni Zhao
- Department of Electronic EngineeringThe Chinese University of Hong KongNew TerritoriesHong Kong SAR999077China
| | - Xinhui Lu
- Department of PhysicsThe Chinese University of Hong KongNew TerritoriesHong Kong SAR999077China
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2
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Kong H, Zhao C, Han H, Liu H, Zou P, Fu Y, Lang K, Shen F, Liu X, Xu J, Yao J. Anti-Solvent-Free Fabrication of Stable FA 0.9Cs 0.1PbI 3 Perovskite Solar Cells with Efficiency Exceeding 24.0% through a Naphthalene-Based Passivator. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401669. [PMID: 38573947 DOI: 10.1002/smll.202401669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 03/25/2024] [Indexed: 04/06/2024]
Abstract
The anti-solvent-free fabrication of high-efficiency perovskite solar cells (PSCs) holds immense significance for the transition from laboratory-scale to large-scale commercial applications. However, the device performance is severely hindered by the increased occurrence of surface defects resulting from the lack of control over nucleation and crystallization of perovskite using anti-solvent methods. In this study, 2-(naphthalen-2-yl)ethylamine hydriodide (NEAI) is employed as the surface passivator for perovskite films without using any anti-solvent. Naphthalene demonstrates strong π-π conjugation, which aids in the efficient extraction of charge carriers. Additionally, the naphthalene-ring moieties form a tight attachment to the perovskite surface. After NEAI treatment, FA and I vacancies are selectively occupied by NEA+ and I- in NEAI respectively, thus effectively passivating the surface defects and isolating the surface from moisture. Ultimately, the optimized NEAI-treated device achieves a promising power conversion efficiency (PCE) of 24.19% (with a certified efficiency of 23.94%), featuring a high fill factor of 83.53%. It stands out as one of the reported high PCEs achieved for PSCs using the spin-coating technique without the need for any anti-solvent so far. Furthermore, the NEAI-treated device can maintain ≈87% of its initial PCE after 2000 h in ambient air with a relative humidity of 30% ± 5%.
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Affiliation(s)
- Hao Kong
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Chenxu Zhao
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Huifang Han
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Huijing Liu
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, 102206, China
| | - Pengchen Zou
- Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China
| | - Yao Fu
- Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China
| | - Kun Lang
- Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China
| | - Fan Shen
- Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China
| | - Xuewei Liu
- Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China
| | - Jia Xu
- New Energy Generation National Engineering Research Center, Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China
| | - Jianxi Yao
- State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, New Energy Generation National Engineering Research Center, Beijing Key Laboratory of Energy Safety and Clean Utilization, North China Electric Power University, Beijing, 102206, China
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3
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Zhang T, Qian F, Zhai Y, Li J, Wang L, Diao Z, Yuan S, Zheng H, Wang Y, Gong Y, Chen ZD, Li S. Ammonium Additive Engineering in Antisolvents for Improving Perovskite/Charge-Transport-Layer Interfaces toward Efficient Lead-Tin Alloyed Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2024; 16:13763-13772. [PMID: 38379180 DOI: 10.1021/acsami.3c19237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
Although significant advancements have been achieved in lead-tin (Pb-Sn) alloyed perovskite solar cells (PSCs), their power conversion efficiency (PCE) remains inferior to that of their Pb-based counterparts, primarily due to higher open-circuit voltage (Voc) losses and lower fill factors (FFs). Herein, we report both perovskite top and bottom interfacial improvements by incorporating a facile fluorophenylethylammonium iodide (p-FPEAI)/ethyl acetate (EA) solution during the film crystal growth. Based on the analysis of perovskite crystallization, film growth, and strain relaxation, the mechanisms behind these interfacial improvements have been well understood. Furthermore, p-FPEAI could reduce the defect density and nonradiative recombination losses, thus attributing to the improved Voc and FF. Finally, the treated device achieved a PCE of 20.14% with a Voc of up to 0.84 V, which is among the highest reported values so far for Pb-Sn alloyed PSCs without additional precursor additives. In addition, the unencapsulated p-FPEAI-treated device maintained its initial efficiency of approximately 92% after being kept in a nitrogen atmosphere for 1 month, in contrast to the control device which retained only 30% of its initial value. Our findings provide a comprehension for understanding the effect of bulky cations as antisolvents on fabricating highly efficient Pb-Sn alloyed perovskite solar cells.
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Affiliation(s)
- Ting Zhang
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Feng Qian
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yahui Zhai
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Jian Li
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Lei Wang
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Zecheng Diao
- College of Electronic Engineering, Guangzhou University, Guangzhou 510006, China
| | - Shihao Yuan
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hualin Zheng
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yafei Wang
- College of Electronic Engineering, Guangzhou University, Guangzhou 510006, China
| | - Yanli Gong
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
- School of Mechanical and Electrical Engineering, Chengdu University of Information Technology, Chengdu 610225, China
| | - Zhi David Chen
- Department of Electrical & Computer Engineering and Center for Nanoscale Science & Engineering, University of Kentucky, Lexington, Kentucky 40506, United States
| | - Shibin Li
- School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China
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4
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Starger JL, Fafarman AT, Baxter JB, Alvarez NJ, Cairncross RA. Quasi-2D Model to Predict Solid Microstructure in Drying Thin Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:16231-16243. [PMID: 37939230 DOI: 10.1021/acs.langmuir.3c01469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
The microstructure of solid coatings produced by solution processing is highly dependent on the coupling between growth, solute diffusion, and solvent evaporation. Here, a quasi-2D numerical model coupling drying and solidification is used to predict the transient lateral growth of two adjacent nuclei growing toward each other. Lateral gradients of the solute and solvent influence the evolution of film thickness and solid growth rate. The important process parameters and solvent properties are captured by the dimensionless Peclet number (Pe) and the Biot number (Bi), modified by an aspect ratio defined by the film thickness and distance between nuclei. By variation of Pe and Bi, the evaporation dynamics and aspect ratio are shown to largely determine the coating quality. These findings are applied to drying thin films of crystallizing halide perovskites, demonstrating a convenient process map for capturing the relationship between the modified Bi and well-defined coating regimes, which may be generalized for any solution-processed thin film coating systems.
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Affiliation(s)
- Jesse L Starger
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Aaron T Fafarman
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Jason B Baxter
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Nicolas J Alvarez
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Richard A Cairncross
- Department of Chemical and Biological Engineering, Drexel University, Philadelphia, Pennsylvania 19104, United States
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5
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Metcalf I, Sidhik S, Zhang H, Agrawal A, Persaud J, Hou J, Even J, Mohite AD. Synergy of 3D and 2D Perovskites for Durable, Efficient Solar Cells and Beyond. Chem Rev 2023; 123:9565-9652. [PMID: 37428563 DOI: 10.1021/acs.chemrev.3c00214] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/11/2023]
Abstract
Three-dimensional (3D) organic-inorganic lead halide perovskites have emerged in the past few years as a promising material for low-cost, high-efficiency optoelectronic devices. Spurred by this recent interest, several subclasses of halide perovskites such as two-dimensional (2D) halide perovskites have begun to play a significant role in advancing the fundamental understanding of the structural, chemical, and physical properties of halide perovskites, which are technologically relevant. While the chemistry of these 2D materials is similar to that of the 3D halide perovskites, their layered structure with a hybrid organic-inorganic interface induces new emergent properties that can significantly or sometimes subtly be important. Synergistic properties can be realized in systems that combine different materials exhibiting different dimensionalities by exploiting their intrinsic compatibility. In many cases, the weaknesses of each material can be alleviated in heteroarchitectures. For example, 3D-2D halide perovskites can demonstrate novel behavior that neither material would be capable of separately. This review describes how the structural differences between 3D halide perovskites and 2D halide perovskites give rise to their disparate materials properties, discusses strategies for realizing mixed-dimensional systems of various architectures through solution-processing techniques, and presents a comprehensive outlook for the use of 3D-2D systems in solar cells. Finally, we investigate applications of 3D-2D systems beyond photovoltaics and offer our perspective on mixed-dimensional perovskite systems as semiconductor materials with unrivaled tunability, efficiency, and technologically relevant durability.
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Affiliation(s)
- Isaac Metcalf
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Siraj Sidhik
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Hao Zhang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
| | - Ayush Agrawal
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Jessica Persaud
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Jin Hou
- Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States
| | - Jacky Even
- Université de Rennes, INSA Rennes, CNRS, Institut FOTON - UMR 6082, 35708 Rennes, France
| | - Aditya D Mohite
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
- Applied Physics Graduate Program, Smalley-Curl Institute, Rice University, Houston, Texas 77005, United States
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6
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An investigation of liquid-junction perovskite solar energy storage cell. J APPL ELECTROCHEM 2023. [DOI: 10.1007/s10800-023-01861-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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7
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A Critical Review of the Use of Bismuth Halide Perovskites for CO2 Photoreduction: Stability Challenges and Strategies Implemented. Catalysts 2022. [DOI: 10.3390/catal12111410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Inspired by natural photosynthesis, the photocatalytic CO2 reduction reaction (CO2RR) stands as a viable strategy for the production of solar fuels to mitigate the high dependence on highly polluting fossil fuels, as well as to decrease the CO2 concentration in the atmosphere. The design of photocatalytic materials is crucial to ensure high efficiency of the CO2RR process. So far, perovskite materials have shown high efficiency and selectivity in CO2RR to generate different solar fuels. Particularly, bismuth halide perovskites have gained much attention due to their higher absorption coefficients, their more efficient charge transfer (compared to oxide perovskites), and their required thermodynamic potential for CO2RR. Moreover, these materials represent a promising alternative to the highly polluting lead halide perovskites. However, despite all the remarkable advantages of bismuth halide perovskites, their use has been limited, owing to instability concerns. As a consequence, recent reports have offered solutions to obtain structures highly stable against oxygen, water, and light, promoting the formation of solar fuels with promising efficiency for CO2RR. Thus, this review analyzes the current state of the art in this field, particularly studies about stability strategies from intrinsic and extrinsic standpoints. Lastly, we discuss the challenges and opportunities in designing stable bismuth halide perovskites, which open new opportunities for scaling up the CO2RR.
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8
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Yu S, Zhang K, Cai X, Tu P, Zhou Y, Mei F. Enhanced Performance of Perovskite Light-Emitting Diodes via Phenylmethylamine Passivation. MICROMACHINES 2022; 13:1857. [PMID: 36363878 PMCID: PMC9692465 DOI: 10.3390/mi13111857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/18/2022] [Accepted: 10/28/2022] [Indexed: 06/16/2023]
Abstract
Organic-inorganic perovskite materials are widely used in the preparation of light-emitting diodes due to their low raw material cost, solution preparation, high color purity, high fluorescence quantum yield, continuously tunable spectrum, and excellent charge transport properties. It has become a research hotspot in the field of optoelectronics today. At present, the nonradiative recombination and fluorescence quenching occurring at the interface between the device transport layer and the light-emitting layer are still important factors limiting the performance of perovskite light-emitting diodes (PeLEDs). In this work, based on CH3NH3PbBr3 perovskite, the effects of parameters such as precursor solution, anti-solvent chlorobenzene (CB), and small amine molecule phenylmethylamine (PMA) on the performance of perovskite films and devices were investigated. The research results show that adding an appropriate amount of PMA can reduce the grain size of perovskite, improve the coverage of the film, enhance the crystallinity of the film, and increase the fluorescence intensity of the perovskite film. When the PMA content is 0.050 vol.%, the maximum luminance of PeLEDs is 2098 cd/m2 and the maximum current efficiency is 1.592 cd/A, which is greatly improved by 30% and 64.8% compared with the reference device without PMA doping. These results suggest that an appropriate amount of PMA can effectively passivate the defects in perovskite films, and inhibit the non-radiative recombination caused by the traps, thereby improving the optoelectronic performance of the device.
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Affiliation(s)
- Shisong Yu
- School of Electrical and Electronic Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Kai Zhang
- School of Electrical and Electronic Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Xiangcheng Cai
- School of Electrical and Electronic Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Peng Tu
- School of Electrical and Electronic Engineering, Hubei University of Technology, Wuhan 430068, China
| | - Yuanming Zhou
- School of Science, Hubei University of Technology, Wuhan 430068, China
| | - Fei Mei
- School of Science, Hubei University of Technology, Wuhan 430068, China
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9
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Anwar H, Johnston A, Mahesh S, Singh K, Wang Z, Kuntz DA, Tamblyn I, Voznyy O, Privé GG, Sargent EH. High-Throughput Evaluation of Emission and Structure in Reduced-Dimensional Perovskites. ACS CENTRAL SCIENCE 2022; 8:571-580. [PMID: 35647281 PMCID: PMC9136976 DOI: 10.1021/acscentsci.2c00041] [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: 01/15/2022] [Indexed: 06/15/2023]
Abstract
High-throughput experimentation (HTE) seeks to accelerate the exploration of materials space by uniting robotics, combinatorial methods, and parallel processing. HTE is particularly relevant to metal halide perovskites (MHPs), a diverse class of optoelectronic materials with a large chemical space. Here we develop an HTE workflow to synthesize and characterize light-emitting MHP single crystals, allowing us to generate the first reported data set of experimentally derived photoluminescence spectra for low-dimensional MHPs. We leverage the accelerated workflow to optimize the synthesis and emission of a new MHP, methoxy-phenethylammonium lead iodide ((4-MeO-PEAI)2-PbI2). We then synthesize 16 000 MHP single crystals and measure their photoluminescence to study the effects of synthesis parameters and compositional engineering on the emission intensity of 54 distinct MHPs: we achieve an acceleration factor of more than 100 times over previously reported HTE MHP synthesis and characterization methods. Using insights derived from this analysis, we screen an existing database for new, potentially emissive MHPs. On the basis of the Tanimoto similarity of the bright available emitters, we present our top candidates for future exploration. As a proof of concept, we use one of these (3,4-difluorophenylmethanamine) to synthesize an MHP which we find has a photoluminescence quantum yield of 10%.
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Affiliation(s)
- Husna Anwar
- The
Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G4
| | - Andrew Johnston
- The
Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G4
| | - Suhas Mahesh
- The
Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G4
| | - Kamalpreet Singh
- Department
of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada M1C 1A4
| | - Zhibo Wang
- Department
of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada M1C 1A4
| | - Douglas A. Kuntz
- Princess
Margaret Cancer Centre, University Health
Network, Toronto, Ontario, Canada M5G 1L7
| | - Isaac Tamblyn
- Department
of Physics, University of Ottawa, Vector
Institute for Artificial Intelligence, Ottawa, Ontario, Canada K1N 6N5
| | - Oleksandr Voznyy
- Department
of Physical and Environmental Sciences, University of Toronto Scarborough, Scarborough, Ontario, Canada M1C 1A4
| | - Gilbert G. Privé
- Princess
Margaret Cancer Centre, University Health
Network, Toronto, Ontario, Canada M5G 1L7
- Department
of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada M5G 1L7
- Department
of Biochemistry, University of Toronto, Toronto, Ontario, Canada M5S 1A8
| | - Edward H. Sargent
- The
Edward S. Rogers Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada M5S 3G4
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10
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Scalable and Blue Photoluminescence Emissions of (C4H9NH3)2PbBr4 2D Perovskite Fabricated by the Dip-Coating Method Using a Co-Solvent System. CRYSTALS 2022. [DOI: 10.3390/cryst12030418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Abstract
The improved efficiency of perovskite-related photovoltaic devices, such as light-emitting diodes (LEDs), is related to film uniformity, the compactness of each layer, and thickness. Herein, we improved the traditional single-solvent, solution-processed method and developed a co-solvent method to prepare a two-dimensional (2D) (C4H9NH3)2PbBr4 perovskite film for blue photoluminescence (PL) emissions. A poor film-forming uniformity was observed for the use of the single-solvent, dimethylformamide (DMF) method. In adding 1,2-dichlorobenzene (ODCB) of a smaller polarity to DMF, the co-solvent engineering dramatically changed the film-forming properties. Optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffractometer (XRD), and time-resolved PL (TR-PL) spectroscopy analyses confirmed that the perovskite film prepared by the co-solvent system had a good crystallinity, fewer defects, and a longer carrier lifetime. These experimental results show a simple, scalable (1.23 × 1.23 cm2), and stable reproducibility method for preparing 2D perovskite of 415 nm wavelength PL emissions that might be beneficial for the development of ultraviolet (UV) photodetectors, blue LEDs, and high-resolution displays.
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11
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Zarabinia N, Lucarelli G, Rasuli R, De Rossi F, Taheri B, Javanbakht H, Brunetti F, Brown TM. Simple and effective deposition method for solar cell perovskite films using a sheet of paper. iScience 2022; 25:103712. [PMID: 35098098 PMCID: PMC8783128 DOI: 10.1016/j.isci.2021.103712] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Revised: 12/03/2021] [Accepted: 12/28/2021] [Indexed: 11/28/2022] Open
Abstract
Most laboratories employ spin coating with application of antisolvent to achieve high efficiency in perovskite solar cells. However, this method wastes a lot of material and is not industrially usable. Conversely, large area coating techniques such as blade and slot-die require high precision engineering both for deposition of ink and for gas or for electromagnetic drying procedures that replace, out of necessity, anti-solvent engineering. Here we present a simple and effective method to deposit uniform high-quality perovskite films with a piece of paper as an applicator at low temperatures. We fabricated solar cells on flexible PET substrates manually with 11% power conversion efficiency. Deposition after soaking the sheet of paper in a green antisolvent improved the efficiency by 82% compared to when using dry paper as applicator. This new technique enables manual film deposition without any expensive equipment and has the potential to be fully automated for future optimization and exploitation. New method for depositing perovskite films with a piece of paper is demonstrated Soaking paper applicator in antisolvent boosts efficiency of solar cells by 82% Paper possesses right porosity and smoothness for deposition of high quality films Flexible perovskite solar cell efficiency made manually via paper applicator is 11%
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Affiliation(s)
- Nazila Zarabinia
- Department of Physics, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Giulia Lucarelli
- CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - Reza Rasuli
- Department of Physics, Faculty of Science, University of Zanjan, Zanjan, Iran
| | - Francesca De Rossi
- CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - Babak Taheri
- CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - Hamed Javanbakht
- CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - Francesca Brunetti
- CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
| | - Thomas M. Brown
- CHOSE (Centre for Hybrid and Organic Solar Energy), Department of Electronic Engineering, University of Rome Tor Vergata, Rome, Italy
- Corresponding author
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12
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Gu L, Fei F, Xu Y, Wang S, Yuan N, Ding J. Vacuum Quenching for Large-Area Perovskite Film Deposition. ACS APPLIED MATERIALS & INTERFACES 2022; 14:2949-2957. [PMID: 34985243 DOI: 10.1021/acsami.1c22128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The removal of precursor solvents in perovskite wet films plays a vital role in controlling the quality of perovskite films and devices. The dripping antisolvent method (removing precursor solvents) has made great advances in small-area devices, but this method limits the preparation of large-area perovskite films. Vacuum quenching that evaporates solvents by dropping the pressure is a potential large-area manufacturing approach. Herein, we have conducted a systematic comparative study on these two methods of depositing perovskite films. It is found that vacuum quenching can obtain the same film quality and small-area device efficiency (∼22.5%) as the antisolvent method. However, on a large-area substrate, the fast vacuum quenching rate improves the solvent evaporation efficiency and nucleation density (i.e., forming a large number of crystal nuclei), thereby obtaining a more uniform and stable perovskite film. Notably, the manufacture window exceeds 10 min. As a result, the champion large-area (6 × 6 cm2) perovskite solar module exhibits an impressive efficiency (17.86%) and long-term operational stability. Furthermore, coupling slot-die coating, vacuum quenching can realize the industrial continuous deposition of large-area perovskite films, which is a potential route for large-scale production.
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Affiliation(s)
- Leilei Gu
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou 213164, China
| | - Fei Fei
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou 213164, China
| | - Yibo Xu
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou 213164, China
| | - Shubo Wang
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou 213164, China
| | - Ningyi Yuan
- School of Materials Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Collaborative Innovation Center for Photovoltaic Science and Engineering, Changzhou University, Changzhou 213164, China
- Jiangsu Province Cultivation Base for State Key Laboratory of Photovoltaic Science and Technology, Changzhou University, Changzhou 213164, China
| | - Jianning Ding
- Micro/Nano Science and Technology Center, Jiangsu University, Zhenjiang 212013, China
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13
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Otis G, Benyamin M, Mastai Y, Zalevsky Z. Photoacoustic measurement of localized optical dichroism in chiral crystals. Chem Commun (Camb) 2021; 58:84-87. [PMID: 34870648 DOI: 10.1039/d1cc05961k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this communication, we present a novel method to measure local optical dichroism (OD) in opaque crystal powder suspensions using photoacoustic (PA) effect. Our method is based upon the novel laser speckle contrast technique, in combination with a simple statistical approach, we were able to measure the OD of chiral crystals suspensions under completely random orientation.
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Affiliation(s)
- Gil Otis
- Department of Chemistry and the Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Matan Benyamin
- Faculty of Engineering and the Nanotechnology Center, Bar Ilan University, Ramat Gan 5290002, Israel
| | - Yitzhak Mastai
- Department of Chemistry and the Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Zeev Zalevsky
- Faculty of Engineering and the Nanotechnology Center, Bar Ilan University, Ramat Gan 5290002, Israel
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14
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Mrkyvkova N, Held V, Nádaždy P, Subair R, Majkova E, Jergel M, Vlk A, Ledinsky M, Kotlár M, Tian J, Siffalovic P. Combined in Situ Photoluminescence and X-ray Scattering Reveals Defect Formation in Lead-Halide Perovskite Films. J Phys Chem Lett 2021; 12:10156-10162. [PMID: 34637618 DOI: 10.1021/acs.jpclett.1c02869] [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
Lead-halide perovskites have established a firm foothold in photovoltaics and optoelectronics due to their steadily increasing power conversion efficiencies approaching conventional inorganic single-crystal semiconductors. However, further performance improvement requires reducing defect-assisted, nonradiative recombination of charge carriers in the perovskite layers. A deeper understanding of perovskite formation and associated process control is a prerequisite for effective defect reduction. In this study, we analyze the crystallization kinetics of the lead-halide perovskite MAPbI3-xClx during thermal annealing, employing in situ photoluminescence (PL) spectroscopy complemented by lab-based grazing-incidence wide-angle X-ray scattering (GIWAXS). In situ GIWAXS measurements are used to quantify the transition from a crystalline precursor to the perovskite structure. We show that the nonmonotonous character of PL intensity development reflects the perovskite phase volume, as well as the occurrence of the defects states at the perovskite layer surface and grain boundaries. The combined characterization approach enables easy determination of defect kinetics during perovskite formation in real-time.
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Affiliation(s)
- Nada Mrkyvkova
- Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
- Center for Advanced Materials Application, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
| | - Vladimír Held
- Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
| | - Peter Nádaždy
- Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
| | - Riyas Subair
- Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
| | - Eva Majkova
- Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
- Center for Advanced Materials Application, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
| | - Matej Jergel
- Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
- Center for Advanced Materials Application, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
| | - Aleš Vlk
- Laboratory of Thin Films, Institute of Physics, ASCR, Cukrovarnická 10, 162 00 Prague, Czech Republic
| | - Martin Ledinsky
- Laboratory of Thin Films, Institute of Physics, ASCR, Cukrovarnická 10, 162 00 Prague, Czech Republic
| | - Mário Kotlár
- Center for Nano-diagnostics, Slovak University of Technology, Vazovova 5, 81243 Bratislava, Slovakia
| | - Jianjun Tian
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, 100083 Beijing, China
| | - Peter Siffalovic
- Institute of Physics, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
- Center for Advanced Materials Application, Slovak Academy of Sciences, Dúbravská cesta 9, 845 11 Bratislava, Slovakia
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15
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Trifiletti V, Asker C, Tseberlidis G, Riva S, Zhao K, Tang W, Binetti S, Fenwick O. Quasi-Zero Dimensional Halide Perovskite Derivates: Synthesis, Status, and Opportunity. FRONTIERS IN ELECTRONICS 2021. [DOI: 10.3389/felec.2021.758603] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In recent decades, many technological advances have been enabled by nanoscale phenomena, giving rise to the field of nanotechnology. In particular, unique optical and electronic phenomena occur on length scales less than 10 nanometres, which enable novel applications. Halide perovskites have been the focus of intense research on their optoelectronic properties and have demonstrated impressive performance in photovoltaic devices and later in other optoelectronic technologies, such as lasers and light-emitting diodes. The most studied crystalline form is the three-dimensional one, but, recently, the exploration of the low-dimensional derivatives has enabled new sub-classes of halide perovskite materials to emerge with distinct properties. In these materials, low-dimensional metal halide structures responsible for the electronic properties are separated and partially insulated from one another by the (typically organic) cations. Confinement occurs on a crystal lattice level, enabling bulk or thin-film materials that retain a degree of low-dimensional character. In particular, quasi-zero dimensional perovskite derivatives are proving to have distinct electronic, absorption, and photoluminescence properties. They are being explored for various technologies beyond photovoltaics (e.g. thermoelectrics, lasing, photodetectors, memristors, capacitors, LEDs). This review brings together the recent literature on these zero-dimensional materials in an interdisciplinary way that can spur applications for these compounds. The synthesis methods, the electrical, optical, and chemical properties, the advances in applications, and the challenges that need to be overcome as candidates for future electronic devices have been covered.
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16
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Chandel A, Wu JR, Thakur D, Kassou S, Chiang SE, Cheng KJ, Li CY, Yen YS, Chen SH, Chang SH. Improvement of interfacial contact for efficient PCBM/MAPbI 3planar heterojunction solar cells with a binary antisolvent mixture treatment. NANOTECHNOLOGY 2021; 32:485401. [PMID: 34407524 DOI: 10.1088/1361-6528/ac1ec0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/18/2021] [Indexed: 06/13/2023]
Abstract
Atomic-force microscopic images, x-ray diffraction patterns, Urbach energies and photoluminescence quenching experiments show that the interfacial contact quality between the hydrophobic [6,6]-phenyl-C61-buttric acid methyl ester (PCBM) thin film and hydrophilic CH3NH3PbI3(MAPbI3) thin film can be effectively improved by using a binary antisolvent mixture (toluene:dichloromethane or chlorobenzene:dichloromethane) in the anti-solvent mixture-mediated nucleation process, which increases the averaged power conversion efficiency of the resultant PEDOT:PSS (P3CT-Na) thin film based MAPbI3solar cells from 13.18% (18.52%) to 13.80% (19.55%). Beside, the use of 10% dichloromethane (DCM) in the binary antisolvent mixture results in a nano-textured MAPbI3thin film with multicrystalline micrometer-sized grains and thereby increasing the short-circuit current density and fill factor (FF) of the resultant solar cells. It is noted that a remarkable FF of 80.33% is achieved, which can be used to explain the stable photovoltaic performance without additional encapsulations.
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Affiliation(s)
- Anjali Chandel
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
- R&D Center for Membrane Technology and Center for Nano Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
| | - Jia-Ren Wu
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
| | - Diksha Thakur
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
- R&D Center for Membrane Technology and Center for Nano Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
| | - Said Kassou
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
| | - Shou-En Chiang
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
- R&D Center for Membrane Technology and Center for Nano Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
| | - Kai-Jen Cheng
- Department of Optics and Photonics, National Central University, Taoyuan 320317, Taiwan, Republic of China
| | - Chung-Yu Li
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
| | - Yung-Sheng Yen
- Department of Chemistry, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
| | - Sheng-Hui Chen
- Department of Optics and Photonics, National Central University, Taoyuan 320317, Taiwan, Republic of China
| | - Sheng Hsiung Chang
- Department of Physics, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
- R&D Center for Membrane Technology and Center for Nano Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan, Republic of China
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17
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Bachchhav SD, Roy S, Mukhopadhyay M. Effect of solution nonideality on cholesterol supersaturation for liquid antisolvent crystallization. CHEM ENG COMMUN 2021. [DOI: 10.1080/00986445.2021.1951717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Shital D. Bachchhav
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Sandip Roy
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
| | - Mamata Mukhopadhyay
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, India
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18
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Satta J, Casu A, Chiriu D, Carbonaro CM, Stagi L, Ricci PC. Formation Mechanisms and Phase Stability of Solid-State Grown CsPbI 3 Perovskites. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1823. [PMID: 34361209 PMCID: PMC8308418 DOI: 10.3390/nano11071823] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 12/30/2022]
Abstract
CsPbI3 inorganic perovskite is synthesized by a solvent-free, solid-state reaction, and its structural and optical properties can be deeply investigated using a multi-technique approach. X-ray Diffraction (XRD) and Raman measurements, optical absorption, steady-time and time-resolved luminescence, as well as High-Resolution Transmission Electron Microscopy (HRTEM) imaging, were exploited to understand phase evolution as a function of synthesis time length. Nanoparticles with multiple, well-defined crystalline domains of different crystalline phases were observed, usually surrounded by a thin, amorphous/out-of-axis shell. By increasing the synthesis time length, in addition to the pure α phase, which was rapidly converted into the δ phase at room temperature, a secondary phase, Cs4PbI6, was observed, together with the 715 nm-emitting γ phase.
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Affiliation(s)
- Jessica Satta
- Department of Physics, Campus of Monserrato, University of Cagliari, 09042 Monserrato, Italy; (J.S.); (D.C.); (C.M.C.)
| | - Alberto Casu
- Nabla Lab, Biological and Environmental Sciences and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia;
| | - Daniele Chiriu
- Department of Physics, Campus of Monserrato, University of Cagliari, 09042 Monserrato, Italy; (J.S.); (D.C.); (C.M.C.)
| | - Carlo Maria Carbonaro
- Department of Physics, Campus of Monserrato, University of Cagliari, 09042 Monserrato, Italy; (J.S.); (D.C.); (C.M.C.)
| | - Luigi Stagi
- Laboratory of Materials Science and Nanotechnology, CR-INSTM, Department of Chemistry and Pharmacy, University of Sassari, Via Vienna 2, 07100 Sassari, Italy;
| | - Pier Carlo Ricci
- Department of Physics, Campus of Monserrato, University of Cagliari, 09042 Monserrato, Italy; (J.S.); (D.C.); (C.M.C.)
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19
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Rezaee E, Zhang W, Silva SRP. Solvent Engineering as a Vehicle for High Quality Thin Films of Perovskites and Their Device Fabrication. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2008145. [PMID: 33988287 DOI: 10.1002/smll.202008145] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Indexed: 05/24/2023]
Abstract
Organic-inorganic halide perovskite solar cells (PSCs) have shown a significant growth in power conversion efficiencies (PCEs) during last decade. Progress in device architecture and high-quality perovskite film fabrication has led to an incredible efficiency over 25% in close to a decade. Developments in solution-based thin film deposition techniques for perovskite layer preparation in PSCs provide low cost and ease of process for their manufacturing, making them a potential contender in future solar energy harvesting technologies. From small area single solar cells to large area perovskite solar modules, solvents play crucial roles in thin film quality and therefore, the device performance and stability. A comprehensive overview of solvent engineering toward achieving the highest qualities for perovskite light absorbing layers with various compositions and based on different fabrication processes is provided in this review. The mechanisms indicating the essential roles a solvent, or a solvent mixture can play to improve the crystallinity, uniformity, coverage and surface roughness of the perovskite films, are discussed. Finally, the role of solvent engineering in transferring from small area laboratory scale PSC fabrication to large area perovskite film deposition processes is explored.
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Affiliation(s)
- Ehsan Rezaee
- Department of Electrical and Electronic Engineering, Advanced Technology Institute (ATI), University of Surrey, Guildford, Surrey, GU2 7XH, UK
| | - Wei Zhang
- Department of Electrical and Electronic Engineering, Advanced Technology Institute (ATI), University of Surrey, Guildford, Surrey, GU2 7XH, UK
| | - S Ravi P Silva
- Department of Electrical and Electronic Engineering, Advanced Technology Institute (ATI), University of Surrey, Guildford, Surrey, GU2 7XH, UK
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20
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Abstract
The increasing demand for renewable energy devices over the past decade has motivated researchers to develop new and improve the existing fabrication techniques. One of the promising candidates for renewable energy technology is metal halide perovskite, owning to its high power conversion efficiency and low processing cost. This work analyzes the relationship between the structure of metal halide perovskites and their properties along with the effect of alloying and other factors on device stability, as well as causes and mechanisms of material degradation. The present work discusses the existing approaches for enhancing the stability of PSC devices through modifying functional layers. The advantages and disadvantages of different methods in boosting device efficiency and reducing fabrication cost are highlighted. In addition, the paper presents recommendations for the enhancement of interfaces in PSC structures.
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21
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Sun J, Li F, Yuan J, Ma W. Advances in Metal Halide Perovskite Film Preparation: The Role of Anti-Solvent Treatment. SMALL METHODS 2021; 5:e2100046. [PMID: 34928086 DOI: 10.1002/smtd.202100046] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/03/2021] [Indexed: 06/14/2023]
Abstract
In the past decade, hybrid organic-inorganic perovskite solar cells (PSCs) have attracted significant attention. Since then, the power conversion efficiency has astonishingly reached to 25.5%, situating perovskites at the forefront of all reported solution-processed photovoltaic materials. The research of PSCs has reached a stage where efficiency, stability, and cost need to be simultaneously considered before reaching the threshold for large-scale commercialization. In this article, the recent progress in fabricating high-quality perovskite thin-films adopting "anti-solvent" strategy is reviewed and the established nucleation and crystal growth mechanisms during the treatment process is discussed. In addition, present challenges and further opportunities of the anti-solvent methodology toward efficient and large-scale PSCs are highlighted. The continuous efforts dedicated to the development of anti-solvent treatment for fabricating high-performance large-area devices may pave the way toward commercial applications of PSCs in the near future.
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Affiliation(s)
- Jianguo Sun
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China
| | - Fangchao Li
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China
| | - Jianyu Yuan
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China
| | - Wanli Ma
- Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren-Ai Road, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, P. R. China
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22
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A general approach to high-efficiency perovskite solar cells by any antisolvent. Nat Commun 2021; 12:1878. [PMID: 33767163 PMCID: PMC7994557 DOI: 10.1038/s41467-021-22049-8] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Accepted: 02/24/2021] [Indexed: 01/31/2023] Open
Abstract
Deposition of perovskite films by antisolvent engineering is a highly common method employed in perovskite photovoltaics research. Herein, we report on a general method that allows for the fabrication of highly efficient perovskite solar cells by any antisolvent via manipulation of the antisolvent application rate. Through detailed structural, compositional, and microstructural characterization of perovskite layers fabricated by 14 different antisolvents, we identify two key factors that influence the quality of the perovskite layer: the solubility of the organic precursors in the antisolvent and its miscibility with the host solvent(s) of the perovskite precursor solution, which combine to produce rate-dependent behavior during the antisolvent application step. Leveraging this, we produce devices with power conversion efficiencies (PCEs) that exceed 21% using a wide range of antisolvents. Moreover, we demonstrate that employing the optimal antisolvent application procedure allows for highly efficient solar cells to be fabricated from a broad range of precursor stoichiometries.
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23
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Chen S, Xiao X, Chen B, Kelly LL, Zhao J, Lin Y, Toney MF, Huang J. Crystallization in one-step solution deposition of perovskite films: Upward or downward? SCIENCE ADVANCES 2021; 7:eabb2412. [PMID: 33523938 PMCID: PMC10670903 DOI: 10.1126/sciadv.abb2412] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 12/03/2020] [Indexed: 06/12/2023]
Abstract
Despite the fast progress of perovskite photovoltaic performances, understanding the crystallization and growth of perovskite films is still lagging. One unanswered fundamental question is whether the perovskite films are grown from top (air side) to bottom (substrate side) or from bottom to top despite 10 years of development. Here, by using grazing incidence x-ray diffraction and morphology characterizations, we unveil that the perovskite films prepared by one-step solution processes, including antisolvent-assisted spin coating and blade coating, follow the downward growth from intermediate phase during thermal annealing. Such a top-to-bottom downward growth is initialized by the evaporation of residual solvent from the top surface of "wet" films and is less sensitive to perovskite compositions and the wettability of underlying substrates. Addressing this fundamental question is important to understand the heterogeneity of perovskite films along the vertical direction, which markedly affects the efficiency and stability of perovskite solar cells.
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Affiliation(s)
- Shangshang Chen
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Xun Xiao
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Bo Chen
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Leah L Kelly
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
| | - Jingjing Zhao
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Yuze Lin
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
| | - Michael F Toney
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025, USA
- Department of Chemical and Biological Engineering, University of Colorado, Boulder, CO 80309, USA
| | - Jinsong Huang
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
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24
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Park Y, Song K, Choi HC. Emulsions of miscible solvents: the origin of anti-solvent crystallization. CrystEngComm 2021. [DOI: 10.1039/d0ce01088j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Emulsions of miscible solvents: the origin of anti-solvent crystallization. We demonstrate that emulsions in a miscible solvents system could provide the opportunity to explain an accurate mechanism of anti-solvent crystallization before nucleation.
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Affiliation(s)
- Yohwan Park
- Department of Chemistry
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| | - Kwangjin Song
- Department of Chemistry
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
| | - Hee Cheul Choi
- Department of Chemistry
- Pohang University of Science and Technology (POSTECH)
- Pohang
- Republic of Korea
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25
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Manion JG, Proppe AH, Hicks GEJ, Sargent EH, Seferos DS. High-Throughput Screening of Antisolvents for the Deposition of High-Quality Perovskite Thin Films. ACS APPLIED MATERIALS & INTERFACES 2020; 12:26026-26032. [PMID: 32402196 DOI: 10.1021/acsami.0c06110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
One-step solution deposition of high-quality perovskite thin films relies heavily on a small number of antisolvents. Here, we design a simple minimum volume colorimetric solution assay to screen over 100 different solvents. We correctly identify 14 previously reported antisolvents and predict 20 novel candidates. We then refine the assay through analysis of screening results, available solvent properties, and qualitative evaluation of films cast using 50 candidates. Using the refined findings, we successfully demonstrated 15 different antisolvents for characterization and evaluation in inverted devices, including six previously unreported candidates. All candidates produced power conversion efficiencies comparable to chlorobenzene controls without any additional optimization. This work presents the largest scope of antisolvents reported, can be easily adapted to other perovskites, and opens the door to selecting antisolvents based on a wide range of desirable properties including efficiency, usability, safety, and industrial viability.
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Affiliation(s)
- Joseph G Manion
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Andrew H Proppe
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Garion E J Hicks
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Dwight S Seferos
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, 200 College Street, Toronto, Ontario M5S 3E5, Canada
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26
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Kandel R, Schatte G, Cheng G, Palmer C, Beauchemin D, Wang PL. Stabilization and Solvent Driven Crystal-to-Crystal Transition between New Bismuth Halides. Inorg Chem 2020; 59:7049-7055. [PMID: 32369351 DOI: 10.1021/acs.inorgchem.0c00521] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The investigations of bismuth halide chemistry in DMSO/MeOH solutions led to the discovery of a new solvent-stabilized compound with a chemical formula of Cs3BiBr6·3DMSO. In addition, a new phase of Cs3BiBr6 was generated as a result of a crystal-to-crystal transition driven by the change in the solvent composition. The solvent stabilized Cs3BiBr6·3DMSO adopts an orthorhombic P212121 type crystal structure with unit cell dimension of a = 13.6160(6) Å, b = 14.4359(8) Å, and c = 14.6487(7) Å. Bulk single crystals of Cs3BiBr6·3DMSO with average size of 4.5 × 3.5 × 3.5 mm3 were grown by the antisolvent crystal growth method. With the change of the solvent composition from 2:1 DMSO: MeOH to 1:1 DMSO: MeOH, the single crystals of Cs3BiBr6·3DMSO underwent a crystal-to-crystal transition yielding another structurally distinct Cs3BiBr6 phase, with a tetragonal P42/m type structure and unit cell dimensions of a = 9.8394(5) Å, b = 9.8394(5) Å, and c = 8.0950(6) Å. Both compounds exhibit isolated BiBr6 octahedral resembling the structures of the zero-dimensional (0D) perovskites.
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Affiliation(s)
- Ramjee Kandel
- Department of Chemistry, Queen's University, Kingston, Ontario Canada, K7L 3N6.,Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston, Ontario Canada, K7L 3N6
| | - Gabriele Schatte
- Department of Chemistry, Queen's University, Kingston, Ontario Canada, K7L 3N6
| | - Grace Cheng
- Department of Chemistry, Queen's University, Kingston, Ontario Canada, K7L 3N6
| | - Calvin Palmer
- Department of Chemistry, Queen's University, Kingston, Ontario Canada, K7L 3N6
| | - Diane Beauchemin
- Department of Chemistry, Queen's University, Kingston, Ontario Canada, K7L 3N6
| | - Peng L Wang
- Department of Chemistry, Queen's University, Kingston, Ontario Canada, K7L 3N6.,Arthur B. McDonald Canadian Astroparticle Physics Research Institute, Queen's University, Kingston, Ontario Canada, K7L 3N6
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27
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Adams GR, Eze VO, Carani LB, Pino A, Jolowsky C, Okoli OI. Synergistic effect of the anti-solvent bath method and improved annealing conditions for high-quality triple cation perovskite thin films. RSC Adv 2020; 10:18139-18146. [PMID: 35517204 PMCID: PMC9053763 DOI: 10.1039/d0ra02719g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 05/01/2020] [Indexed: 11/23/2022] Open
Abstract
One step solution processing together with anti-solvent engineering is a tested route in producing high-quality perovskite films due to its simplicity and low fabrication costs. Commercialization of perovskites will require replacing the anti-solvent drip process and lowering annealing temperatures to decrease the energy payback time. In this work, we successfully replace the anti-solvent drip with the anti-solvent bath (ASB) method through balancing the methylammonium (MA) and formamidinium (FA) cations to produce high-quality cesium (Cs)/FA/MA triple cation perovskite films. Furthermore, the annealing parameters of Cs0.05FA0.16MA0.79PbI2.7Br0.3 are enhanced to allow for a low-temperature fabrication process when paired with the ASB method. This resulted in the formation of remarkable films with micrometer grains and few defects. Self-powered photodetectors were constructed using the improved conditions, resulting in devices that exhibited a low dark current, an on/off ratio of >103, and a rapid rise time of 12.4 μs. The conclusion of this work shows that ASB can be applied to triple cation perovskites and in using this method, the previously established optimal annealing temperature is lowered. High quality triple cation perovskite thin films realized through the combination of the anti-solvent bath method and low temperature annealing.![]()
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Affiliation(s)
- Geoffrey Ryan Adams
- High Performance Materials Institute, FAMU-FSU College of Engineering Tallahassee FL 32310 USA
| | - Vincent Obiozo Eze
- High Performance Materials Institute, FAMU-FSU College of Engineering Tallahassee FL 32310 USA
| | - Lucas Braga Carani
- High Performance Materials Institute, FAMU-FSU College of Engineering Tallahassee FL 32310 USA
| | - Aaron Pino
- High Performance Materials Institute, FAMU-FSU College of Engineering Tallahassee FL 32310 USA
| | - Claire Jolowsky
- High Performance Materials Institute, FAMU-FSU College of Engineering Tallahassee FL 32310 USA
| | - Okenwa I Okoli
- High Performance Materials Institute, FAMU-FSU College of Engineering Tallahassee FL 32310 USA
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28
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Chaudhary B, Koh TM, Febriansyah B, Bruno A, Mathews N, Mhaisalkar SG, Soci C. Mixed-Dimensional Naphthylmethylammoinium-Methylammonium Lead Iodide Perovskites with Improved Thermal Stability. Sci Rep 2020; 10:429. [PMID: 31949188 PMCID: PMC6965185 DOI: 10.1038/s41598-019-57015-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Accepted: 12/03/2019] [Indexed: 11/09/2022] Open
Abstract
Metal halide perovskite solar cells, despite achieving high power conversion efficiency (PCE), need to demonstrate high stability prior to be considered for industrialization. Prolonged exposure to heat, light, and moisture is known to deteriorate the perovskite material owing to the breakdown of the crystal structure into its non-photoactive components. In this study, we show that by combining the organic ligand 1-naphthylmethylammoinium iodide (NMAI) with methylammonium (MA) to form a mixed dimensional (NMA)2(MA)n-1PbnI3n+1 perovskite the optical, crystallographic and morphological properties of the newly formed mixed dimensional perovskite films under thermal ageing can be retained. Indeed, under thermal ageing at 85 °C, the best performing (NMA)2(MA)n-1PbnI3n+1 perovskites films show a stable morphology, a low PbI2 formation rate and a significantly reduced variation of both MA-specific vibrational modes and fluorescence lifetimes as compared to the pristine MAPbI3 films. These results highlight the role of the bulky NMA+ organic cation in mixed dimensional perovskites to both inhibit the MA+ diffusion and reduce the material defects, which act as non-radiative recombination centres. As a result, the thermal stability of metal halide perovskites has been substantially improved.
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Affiliation(s)
- Bhumika Chaudhary
- Interdisciplinary Graduate School, Energy Research Institute @ Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontiers Block, Level 5, 50 Nanyang Drive, 637553, Singapore, Singapore
- Energy Research Institute @ Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontiers Block, Level 5, 50 Nanyang Drive, 637553, Singapore, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Teck M Koh
- Energy Research Institute @ Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontiers Block, Level 5, 50 Nanyang Drive, 637553, Singapore, Singapore
| | - Benny Febriansyah
- Interdisciplinary Graduate School, Energy Research Institute @ Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontiers Block, Level 5, 50 Nanyang Drive, 637553, Singapore, Singapore
| | - Annalisa Bruno
- Energy Research Institute @ Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontiers Block, Level 5, 50 Nanyang Drive, 637553, Singapore, Singapore.
| | - Nripan Mathews
- Energy Research Institute @ Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontiers Block, Level 5, 50 Nanyang Drive, 637553, Singapore, Singapore
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore
| | - Subodh G Mhaisalkar
- Energy Research Institute @ Nanyang Technological University (ERI@N), Research Techno Plaza, X-Frontiers Block, Level 5, 50 Nanyang Drive, 637553, Singapore, Singapore.
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore, Singapore.
| | - Cesare Soci
- Division of Physics and Applied Physics School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore.
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29
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Performance data of CH 3NH 3PbI 3 inverted planar perovskite solar cells via ammonium halide additives. Data Brief 2019; 27:104817. [PMID: 31799351 PMCID: PMC6881670 DOI: 10.1016/j.dib.2019.104817] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 11/07/2019] [Accepted: 11/07/2019] [Indexed: 11/26/2022] Open
Abstract
The data provided in this data set is the study of organic-inorganic hybrid perovskite solar cells fabricated through incorporating the small amounts of ammonium halide NH4X (X = F, Cl, Br, I) additives into a CH3NH3PbI3 (MAPbI3) perovskite solution and is published as “High-Performance CH3NH3PbI3 Inverted Planar Perovskite Solar Cells via Ammonium Halide Additives”, available in Journal of Industrial and Engineering Chemistry [1]. A compact and uniform perovskite absorber layer with large perovskite crystalline grains, is realized by simply incorporating small amounts of additives into precursor solutions, and utilizing the anti-solvent engineering technique to control the nucleation and growth of perovskite crystal, turning out the enhanced device efficiency (NH4F: 14.88 ± 0.33%, NH4Cl: 16.63 ± 0.21%, NH4Br: 16.64 ± 0.35%, and NH4I: 17.28 ± 0.15%) compared to that of a reference MAPbI3 device (Ref.: 12.95 ± 0.48%). In addition, this simple technique of ammonium halide addition to precursor solutions increase the device reproducibility as well as long term stability.
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30
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Zhang Z, Luo X, Ding J, Zhang J. Preparation of high quality perovskite thin film in ambient air using ethylacetate as anti-solvent. J SOLID STATE CHEM 2019. [DOI: 10.1016/j.jssc.2019.03.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Qin M, Tse K, Lau TK, Li Y, Su CJ, Yang G, Chen J, Zhu J, Jeng US, Li G, Chen H, Lu X. Manipulating the Mixed-Perovskite Crystallization Pathway Unveiled by In Situ GIWAXS. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1901284. [PMID: 31038236 DOI: 10.1002/adma.201901284] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 03/31/2019] [Indexed: 05/06/2023]
Abstract
Mixed perovskites have achieved substantial successes in boosting solar cell efficiency, but the complicated perovskite crystal formation pathway remains mysterious. Here, the detailed crystallization process of mixed perovskites (FA0.83 MA0.17 Pb(I0.83 Br0.17 )3 ) during spin-coating is revealed by in situ grazing-incidence wide-angle X-ray scattering measurements, and three phase-formation stages are identified: I) precursor solution; II) hexagonal δ-phase (2H); and III) complex phases including hexagonal polytypes (4H, 6H), MAI-PbI2 -DMSO intermediate phases, and perovskite α-phase. The correlated device performance and ex situ characterizations suggest the existence of an "annealing window" covering the duration of stage II. The spin-coated film should be annealed within the annealing window to avoid the formation of hexagonal polytypes during the perovskite crystallization process, thus achieving a good device performance. Remarkably, the crystallization pathway can be manipulated by incorporating Cs+ ions in mixed perovskites. Combined with density functional theory calculations, the perovskite system with sufficient Cs+ will bypass the formation of secondary phases in stage III by promoting the formation of α-phase both kinetically and thermodynamically, thereby significantly extending the annealing window. This study provides underlying reasons of the time sensitivity of fabricating mixed-perovskite devices and insightful guidelines for manipulating the perovskite crystallization pathways toward higher performance.
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Affiliation(s)
- Minchao Qin
- Department of Physics, The Chinese University of Hong Kong, Shatin, 999077, Hong Kong
| | - Kinfai Tse
- Department of Physics, The Chinese University of Hong Kong, Shatin, 999077, Hong Kong
| | - Tsz-Ki Lau
- Department of Physics, The Chinese University of Hong Kong, Shatin, 999077, Hong Kong
| | - Yuhao Li
- Department of Physics, The Chinese University of Hong Kong, Shatin, 999077, Hong Kong
| | - Chun-Jen Su
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu, 30076, Taiwan
| | - Guang Yang
- Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon, 999077, Hong Kong
| | - Jiehuan Chen
- State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Junyi Zhu
- Department of Physics, The Chinese University of Hong Kong, Shatin, 999077, Hong Kong
| | - U-Ser Jeng
- National Synchrotron Radiation Research Center, Hsinchu Science Park, Hsinchu, 30076, Taiwan
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | - Gang Li
- Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Kowloon, 999077, Hong Kong
| | - Hongzheng Chen
- State Key Laboratory of Silicon Materials, MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, P. R. China
| | - Xinhui Lu
- Department of Physics, The Chinese University of Hong Kong, Shatin, 999077, Hong Kong
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32
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Density of bulk trap states of hybrid lead halide perovskite single crystals: temperature modulated space-charge-limited-currents. Sci Rep 2019; 9:3332. [PMID: 30833620 PMCID: PMC6399241 DOI: 10.1038/s41598-019-40139-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 02/08/2019] [Indexed: 11/09/2022] Open
Abstract
Temperature-modulated space-charge-limited-current spectroscopy (TMSCLC) is applied to quantitatively evaluate the density of trap states in the band-gap with high energy resolution of semiconducting hybrid lead halide perovskite single crystals. Interestingly multicomponent deep trap states were observed in the pure perovskite crystals, which assumingly caused by the formation of nanodomains due to the presence of the mobile species in the perovskites.
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33
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34
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Ng A, Ren Z, Hu H, Fong PWK, Shen Q, Cheung SH, Qin P, Lee JW, Djurišić AB, So SK, Li G, Yang Y, Surya C. A Cryogenic Process for Antisolvent-Free High-Performance Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1804402. [PMID: 30277609 DOI: 10.1002/adma.201804402] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/04/2018] [Indexed: 06/08/2023]
Abstract
A cryogenic process is introduced to control the crystallization of perovskite layers, eliminating the need for the use of environmentally harmful antisolvents. This process enables decoupling of the nucleation and the crystallization phases by inhibiting chemical reactions in as-cast precursor films rapidly cooled down by immersion in liquid nitrogen. The cooling is followed by blow-drying with nitrogen gas, which induces uniform precipitation of precursors due to the supersaturation of precursors in the residual solvents at very low temperature, while at the same time enhancing the evaporation of the residual solvents and preventing the ordered precursors/perovskite from redissolving into the residual solvents. Using the proposed techniques, the crystallization process can be initiated after the formation of a uniform precursor seed layer. The process is generally applicable to improve the performance of solar cells using perovskite films with different compositions, as demonstrated on three different types of mixed halide perovskites. A champion power conversion efficiency (PCE) of 21.4% with open-circuit voltage (VOC ) = 1.14 V, short-circuit current density ( JSC ) = 23.5 mA cm-2 , and fill factor (FF) = 0.80 is achieved using the proposed cryogenic process.
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Affiliation(s)
- Annie Ng
- Department of Electrical and Computer Engineering, School of Engineering, Nazarbayev University, Astana, 010000, Kazakhstan
| | - Zhiwei Ren
- Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong S.A.R
| | - Hanlin Hu
- Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong S.A.R
| | - Patrick W K Fong
- Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong S.A.R
| | - Qian Shen
- Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong S.A.R
| | - Sin Hang Cheung
- Department of Physics, Hong Kong Baptist University, Hong Kong S.A.R
| | - Pingli Qin
- Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong S.A.R
| | - Jin-Wook Lee
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095-9000, USA
| | | | - Shu Kong So
- Department of Physics, Hong Kong Baptist University, Hong Kong S.A.R
| | - Gang Li
- Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, Hong Kong S.A.R
| | - Yang Yang
- Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095-9000, USA
| | - Charles Surya
- School of Engineering, Nazarbayev University, Astana, Kazakhstan
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35
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Liu J, Ozaki M, Yakumaru S, Handa T, Nishikubo R, Kanemitsu Y, Saeki A, Murata Y, Murdey R, Wakamiya A. Lead‐Free Solar Cells based on Tin Halide Perovskite Films with High Coverage and Improved Aggregation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808385] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jiewei Liu
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Masashi Ozaki
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Shinya Yakumaru
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Taketo Handa
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Ryosuke Nishikubo
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, Osaka 565-0871 Japan
| | | | - Akinori Saeki
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, Osaka 565-0871 Japan
| | - Yasujiro Murata
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Richard Murdey
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Atsushi Wakamiya
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
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36
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Liu J, Ozaki M, Yakumaru S, Handa T, Nishikubo R, Kanemitsu Y, Saeki A, Murata Y, Murdey R, Wakamiya A. Lead‐Free Solar Cells based on Tin Halide Perovskite Films with High Coverage and Improved Aggregation. Angew Chem Int Ed Engl 2018; 57:13221-13225. [DOI: 10.1002/anie.201808385] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Jiewei Liu
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Masashi Ozaki
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Shinya Yakumaru
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Taketo Handa
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Ryosuke Nishikubo
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, Osaka 565-0871 Japan
| | | | - Akinori Saeki
- Department of Applied Chemistry Graduate School of Engineering Osaka University 2-1 Yamadaoka Suita, Osaka 565-0871 Japan
| | - Yasujiro Murata
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Richard Murdey
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
| | - Atsushi Wakamiya
- Institute for Chemical Research Kyoto University Uji Kyoto 611-0011 Japan
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37
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Solvent-Antisolvent Ambient Processed Large Grain Size Perovskite Thin Films for High-Performance Solar Cells. Sci Rep 2018; 8:12885. [PMID: 30150702 PMCID: PMC6110839 DOI: 10.1038/s41598-018-31184-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 08/08/2018] [Indexed: 11/30/2022] Open
Abstract
In recent years, hybrid organic-inorganic halide perovskites have been widely studied for the low-cost fabrication of a wide range of optoelectronic devices, including impressive perovskite-based solar cells. Amongst the key factors influencing the performance of these devices, recent efforts have focused on tailoring the granularity and microstructure of the perovskite films. Albeit, a cost-effective technique allowing to carefully control their microstructure in ambient environmental conditions has not been realized. We report on a solvent-antisolvent ambient processed CH3NH3PbI3−xClx based thin films using a simple and robust solvent engineering technique to achieve large grains (>5 µm) having excellent crystalline quality and surface coverage with very low pinhole density. Using optimized treatment (75% chlorobenzene and 25% ethanol), we achieve highly-compact perovskite films with 99.97% surface coverage to produce solar cells with power conversion efficiencies (PCEs) up-to 14.0%. In these planar solar cells, we find that the density and size of the pinholes are the dominant factors that affect their overall performances. This work provides a promising solvent treatment technique in ambient conditions and paves the way for further optimization of large area thin films and high performance perovskite solar cells.
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38
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Elsenety MM, Kaltzoglou A, Antoniadou M, Koutselas I, Kontos AG, Falaras P. Synthesis, characterization and use of highly stable trimethyl sulfonium tin(IV) halide defect perovskites in dye sensitized solar cells. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.05.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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39
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Yang F, Kamarudin MA, Zhang P, Kapil G, Ma T, Hayase S. Enhanced Crystallization by Methanol Additive in Antisolvent for Achieving High-Quality MAPbI 3 Perovskite Films in Humid Atmosphere. CHEMSUSCHEM 2018; 11:2348-2357. [PMID: 29727046 DOI: 10.1002/cssc.201800625] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/17/2018] [Indexed: 06/08/2023]
Abstract
Perovskite solar cells have attracted considerable attention owing to their easy and low-cost solution manufacturing process with high power conversion efficiency. However, the fabrication process is usually performed inside a glovebox to avoid moisture, as organometallic halide perovskites are easily dissolved in water. In this study, we propose a one-step fabrication of high-quality MAPbI3 perovskite films in around 50 % relative humidity (RH) humid ambient air by using diethyl ether as an antisolvent and methanol as an additive into this antisolvent. Because of the presence of methanol, the water molecules can be efficiently removed from the gaps of the perovskite precursors and the perovskite film formation can be slightly controlled, leading to pinhole-free and low roughness films. Concurrently, methanol can be used to tune the DMSO ratio in the intermediate perovskite phase to regulate perovskite formation. Planar solar cells fabricated by using this method exhibited the best efficiency of 16.4 % with a reduced current density-voltage hysteresis. This efficiency value is approximately 160 % higher than the devices fabrication by using only diethyl ether treatment. From the impedance measurement, it is also found that the recombination reaction is suppressed when the device is prepared with methanol additive in the antisolvent. This method presents a new path for controlling the growth and morphology of perovskite films in humid climates and laboratories with uncontrolled environments.
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Affiliation(s)
- Fu Yang
- Graduate School of Life Science and Systems Engineering Institution, Kyushu Institute of Technology, 2-4 Hibikino Wakamatsu-ku, Kitakyushu, 808-0196, Japan
| | - Muhammad Akmal Kamarudin
- Graduate School of Life Science and Systems Engineering Institution, Kyushu Institute of Technology, 2-4 Hibikino Wakamatsu-ku, Kitakyushu, 808-0196, Japan
| | - Putao Zhang
- Graduate School of Life Science and Systems Engineering Institution, Kyushu Institute of Technology, 2-4 Hibikino Wakamatsu-ku, Kitakyushu, 808-0196, Japan
| | - Gaurav Kapil
- Graduate School of Life Science and Systems Engineering Institution, Kyushu Institute of Technology, 2-4 Hibikino Wakamatsu-ku, Kitakyushu, 808-0196, Japan
| | - Tingli Ma
- Graduate School of Life Science and Systems Engineering Institution, Kyushu Institute of Technology, 2-4 Hibikino Wakamatsu-ku, Kitakyushu, 808-0196, Japan
| | - Shuzi Hayase
- Graduate School of Life Science and Systems Engineering Institution, Kyushu Institute of Technology, 2-4 Hibikino Wakamatsu-ku, Kitakyushu, 808-0196, Japan
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40
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Yang F, Kapil G, Zhang P, Hu Z, Kamarudin MA, Ma T, Hayase S. Dependence of Acetate-Based Antisolvents for High Humidity Fabrication of CH 3NH 3PbI 3 Perovskite Devices in Ambient Atmosphere. ACS APPLIED MATERIALS & INTERFACES 2018; 10:16482-16489. [PMID: 29733567 DOI: 10.1021/acsami.8b02554] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
High-efficiency perovskite solar cells (PSCs) need to be fabricated in the nitrogen-filled glovebox by the atmosphere-controlled crystallization process. However, the use of the glovebox process is of great concern for mass level production of PSCs. In this work, notable efficient CH3NH3PbI3 solar cells can be obtained in high humidity ambient atmosphere (60-70% relative humidity) by using acetate as the antisolvent, in which dependence of methyl, ethyl, propyl, and butyl acetate on the crystal growth mechanism is discussed. It is explored that acetate screens the sensitive perovskite intermediate phases from water molecules during perovskite film formation and annealing. It is revealed that relatively high vapor pressure and high water solubility of methyl acetate (MA) leads to the formation of highly dense and pinhole free perovskite films guiding to the best power conversion efficiency (PCE) of 16.3% with a reduced hysteresis. The devices prepared using MA showed remarkable shelf life stability of more than 80% for 360 h in ambient air condition, when compared to the devices fabricated using other antisolvents with low vapor pressure and low water solubility. Moreover, the PCE was still kept at 15.6% even though 2 vol % deionized water was added in the MA for preparing the perovskite layer.
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Affiliation(s)
- Fu Yang
- Kyushu Institute of Technology , 204 Hibikino Wakamatsu-ku , Kitakyushu 808-0196 , Japan
| | - Gaurav Kapil
- Kyushu Institute of Technology , 204 Hibikino Wakamatsu-ku , Kitakyushu 808-0196 , Japan
| | - Putao Zhang
- Kyushu Institute of Technology , 204 Hibikino Wakamatsu-ku , Kitakyushu 808-0196 , Japan
| | - Zhaosheng Hu
- Kyushu Institute of Technology , 204 Hibikino Wakamatsu-ku , Kitakyushu 808-0196 , Japan
| | | | - Tingli Ma
- Kyushu Institute of Technology , 204 Hibikino Wakamatsu-ku , Kitakyushu 808-0196 , Japan
| | - Shuzi Hayase
- Kyushu Institute of Technology , 204 Hibikino Wakamatsu-ku , Kitakyushu 808-0196 , Japan
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41
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Highly Efficient and Stable MAPbI₃ Perovskite Solar Cell Induced by Regulated Nucleation and Ostwald Recrystallization. MATERIALS 2018; 11:ma11050778. [PMID: 29751646 PMCID: PMC5978155 DOI: 10.3390/ma11050778] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Revised: 05/08/2018] [Accepted: 05/08/2018] [Indexed: 12/11/2022]
Abstract
Perovskite solar cells have attracted great attention in recent years, due to their high conversion efficiency and solution-processable fabrication. However, most of the solar cells with high efficiency in the literature are prepared employing TiO₂ as electron transport material, which needs sintering at a temperature higher than 450 °C, and is not applicable to flexible device and low-cost fabrication. Herein, the MAPbI₃ perovskite solar cells are fabricated at a low temperature of 150 °C with SnO₂ as the electron transport layer. By dropping the antisolvent of ethyl acetate onto the perovskite precursor films during the spin coating process, compact MAPbI₃ films without pinholes are obtained. The addition of ethyl acetate is found to play an important role in regulating the nucleation, which subsequently improves the compactness of the film. The quality of MAPbI₃ films are further improved significantly through Ostwald recrystallization by optimizing the thermal treatment. The crystallinity is enhanced, the grain size is enlarged, and the defect density is reduced. Accordingly, the prepared MAPbI₃ perovskite solar cell exhibits a record-high conversion efficiency, outstanding reproducibility, and stability, owing to the reduced electron recombination. The average and best efficiency reaches 19.2% and 20.3%, respectively. The device without encapsulation maintains 94% of the original efficiency after storage in ambient air for 600 h.
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Growth of Metal Halide Perovskite, from Nanocrystal to Micron-Scale Crystal: A Review. CRYSTALS 2018. [DOI: 10.3390/cryst8050182] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhang H, Li R, Zhang M, Guo M. The effect of SrI2 substitution on perovskite film formation and its photovoltaic properties via two different deposition methods. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00131f] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 10 mol% Sr-substituted mesoscopic perovskite solar cell fabricated via a two-step spin-coating method exhibited the highest power conversion efficiency of 15.52%.
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Affiliation(s)
- Huanyu Zhang
- School of Metallurgical and Ecological Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Rui Li
- School of Metallurgical and Ecological Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Mei Zhang
- School of Metallurgical and Ecological Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
| | - Min Guo
- School of Metallurgical and Ecological Engineering
- University of Science and Technology Beijing
- Beijing 100083
- P. R. China
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Improved Stability and Photoluminescence Yield of Mn2+-Doped CH3NH3PbCl3 Perovskite Nanocrystals. CRYSTALS 2017. [DOI: 10.3390/cryst8010004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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