1
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Saha P, Rahman MM, Tolbert CL, Hill CM. Facet-Dependent Photoelectrochemistry on Single Crystal Organic-Inorganic Halide Perovskite Electrodes. CHEMICAL & BIOMEDICAL IMAGING 2023; 1:488-494. [PMID: 37655168 PMCID: PMC10467489 DOI: 10.1021/cbmi.3c00069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 07/09/2023] [Accepted: 07/18/2023] [Indexed: 09/02/2023]
Abstract
Organometallic halide perovskites have garnered significant attention in various fields of material science, particularly solar energy conversion, due to their desirable optoelectronic properties and compatibility with scalable fabrication techniques. It is often unclear, however, how carrier generation and transport within complex polycrystalline films are influenced by variations in local structure. Elucidating how distinct structural motifs within these heterogeneous systems affect behavior could help guide the continued improvement of perovskite-based solar cells. Here, we present studies applying scanning electron microscopy (SECCM) to map solar energy harvesting within well-defined model systems of organometallic halide perovskites. Methylammonium lead bromide (MAPbBr3) single crystals were prepared via a low-temperature solution-based route, and their photoelectrochemical properties were mapped via SECCM using p-benzoquinone (BQ) in dichloromethane as a redox mediator. Correlated SECCM mapping and electron microscopy studies enabled facet-to-facet variations in photoelectrochemical performance to be revealed and carrier transport lengths to be evaluated. The photoelectrochemical behavior observed within individual single crystals was quite heterogeneous, attributable to local variations in crystal structure/orientations, intrafacet junctions, and the presence of other structural defects. These observations underscore the significance of controlling the microstructure of single perovskite crystals, presenting a promising avenue for further enhancement of perovskite-based solar cells.
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Affiliation(s)
- Partha Saha
- Department of Chemistry, University
of Wyoming, 1000 E University Ave., Laramie, Wyoming 82071, United
States
| | - Md. Maksudur Rahman
- Department of Chemistry, University
of Wyoming, 1000 E University Ave., Laramie, Wyoming 82071, United
States
| | - Chloe L. Tolbert
- Department of Chemistry, University
of Wyoming, 1000 E University Ave., Laramie, Wyoming 82071, United
States
| | - Caleb M. Hill
- Department of Chemistry, University
of Wyoming, 1000 E University Ave., Laramie, Wyoming 82071, United
States
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2
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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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3
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Tang Y, Mak CH, Zhang J, Jia G, Cheng KC, Song H, Yuan M, Zhao S, Kai JJ, Colmenares JC, Hsu HY. Unravelling the Interfacial Dynamics of Bandgap Funneling in Bismuth-Based Halide Perovskites. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2207835. [PMID: 36245308 DOI: 10.1002/adma.202207835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/25/2022] [Indexed: 06/16/2023]
Abstract
An environmentally friendly mixed-halide perovskite MA3 Bi2 Cl9- x Ix with a bandgap funnel structure has been developed. However, the dynamic interfacial interactions of bandgap funneling in MA3 Bi2 Cl9- x Ix perovskites in the photoelectrochemical (PEC) system remain ambiguous. In light of this, single- and mixed-halide lead-free bismuth-based hybrid perovskites-MA3 Bi2 Cl9- y Iy and MA3 Bi2 I9 (named MBCl-I and MBI)-in the presence and absence of the bandgap funnel structure, respectively, are prepared. Using temperature-dependent transient photoluminescence and electrochemical voltammetric techniques, the photophysical and (photo)electrochemical phenomena of solid-solid and solid-liquid interfaces for MBCl-I and MBI halide perovskites are therefore confirmed. Concerning the mixed-halide hybrid perovskites MBCl-I with a bandgap funnel structure, stronger electronic coupling arising from an enhanced overlap of electronic wavefunctions results in more efficient exciton transport. Besides, MBCl-I's effective diffusion coefficient and electron-transfer rate demonstrate efficient heterogeneous charge transfer at the solid-liquid interface, generating improved photoelectrochemical hydrogen production. Consequently, this combination of photophysical and electrochemical techniques opens up an avenue to explore the intrinsic and interfacial properties of semiconductor materials for elucidating the correlation between material characterization and device performance.
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Affiliation(s)
- Yunqi Tang
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Chun Hong Mak
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Jun Zhang
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China
| | - Guohua Jia
- Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University, GPO Box U1987, Perth, WA, 6845, Australia
| | - Kuan-Chen Cheng
- Graduate Institute of Food Science Technology, National Taiwan University, Taipei, 10617, Taiwan
- Institute of Biotechnology, National Taiwan University, Taipei, 10617, Taiwan
- Department of Optometry, Asia University, 500 Lioufeng Rd., Wufeng, Taichung, 41354, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Haisheng Song
- Wuhan National Laboratory for Optoelectronics (WNLO) and School of Optical and Electronic Information, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, Hubei, 430074, P. R. China
| | - Mingjian Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Shijun Zhao
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China
| | - Ji-Jung Kai
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China
| | | | - Hsien-Yi Hsu
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
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4
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Wang G, Han B, Mak CH, Liu J, Liu B, Liu P, Hao X, Wang H, Ma S, Xu B, Hsu HY. Mixed-Dimensional van der Waals Heterostructure for High-Performance and Air-Stable Perovskite Nanowire Photodetectors. ACS APPLIED MATERIALS & INTERFACES 2022; 14:55183-55191. [PMID: 36469437 DOI: 10.1021/acsami.2c15139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
An organic-inorganic hybrid perovskite nanowire (NW), CH3NH3PbI3, shows great potential for high-performance photodetectors due to its excellent photoresponse. However, the inefficient carrier collection between the one-dimensional (1D) NWs and metallic electrodes, as well as degradation of the perovskite, limits the viability of the CH3NH3PbI3 NWs for commercial production. Here, we demonstrate a photodetector with a mixed-dimensional van der Waals heterostructure of hexagonal boron nitride (hBN)/graphene (Gr)/1D CH3NH3PbI3, which exhibits excellent responsivity and specific detectivity of up to 558 A/W and 2.3 × 1012 Jones, owing to the improved carrier extraction at the electrical contact between Gr and the NW. As for the atomic encapsulation of hBN, the device is extremely robust and maintains its outstanding performance for more than 2 months when exposed to air. Moreover, benefitting from the 1D geometry of the CH3NH3PbI3 NW, our device is highly sensitive to polarized light. The mixed-dimensional van der Waals heterostructure, hBN/Gr/1D CH3NH3PbI3, would provide a novel idea and protocol for fabricating high-performance and air-stable photoelectronic devices based on organic-inorganic hybrid perovskite NWs.
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Affiliation(s)
- Guanghui Wang
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an710021, Shaanxi, China
- School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an710021, Shaanxi, China
| | - Bin Han
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an710021, Shaanxi, China
| | - Chun Hong Mak
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong999077, Hong Kong, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen518057, China
| | - Jialong Liu
- School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an710021, Shaanxi, China
| | - Bo Liu
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an710021, Shaanxi, China
- School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an710021, Shaanxi, China
| | - Peng Liu
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene, Xi'an710072, Shaanxi, China
| | - Xiaodong Hao
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an710021, Shaanxi, China
| | - Hongyue Wang
- State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Laboratory of Graphene, Xi'an710072, Shaanxi, China
| | - Shufang Ma
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an710021, Shaanxi, China
| | - Bingshe Xu
- Materials Institute of Atomic and Molecular Science, Shaanxi University of Science and Technology, Xi'an710021, Shaanxi, China
| | - Hsien-Yi Hsu
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong999077, Hong Kong, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen518057, China
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5
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Mondal A, Gupta S. Effect of ‘Fluorophenylammonium’ and ‘Fluorophenethylammonium’ as Spacer on the Photo(electro)chemical and Photocatalytic Behaviour of Mixed Halide Based Layered Perovskites. ChemistrySelect 2022. [DOI: 10.1002/slct.202203322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Affiliation(s)
- Arindam Mondal
- Department of Chemistry Indian Institute of Technology Bhilai 492015 Raipur Chhattisgarh India
| | - Satyajit Gupta
- Department of Chemistry Indian Institute of Technology Bhilai 492015 Raipur Chhattisgarh India
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6
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Tang Y, Mak CH, Wang C, Fu Y, Li FF, Jia G, Hsieh CW, Shen HH, Colmenares JC, Song H, Yuan M, Chen Y, Hsu HY. Bandgap Funneling in Bismuth-Based Hybrid Perovskite Photocatalyst with Efficient Visible-Light-Driven Hydrogen Evolution. SMALL METHODS 2022; 6:e2200326. [PMID: 35733072 DOI: 10.1002/smtd.202200326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/18/2022] [Indexed: 06/15/2023]
Abstract
The photocatalytic system using hydrohalic acid (HX) for hydrogen production is a promising strategy to generate clean and renewable fuels as well as value-added chemicals (such as X2 /X3 - ). However, it is still challenging to develop a visible-light active and strong-acid resistive photocatalyst. Hybrid perovskites have been recognized as a potential photocatalyst for photovoltaic HX splitting. Herein, a novel environmentally friendly mixed halide perovskite MA3 Bi2 Cl9-x Ix with a bandgap funnel structure is developed, i.e., confirmed by energy dispersive X-ray analysis and density functional theory calculations. Due to gradient neutral formation energy within iodine-doped MA3 Bi2 Cl9 , the concentration of iodide element decreases from the surface to the interior across the MA3 Bi2 Cl9-x Ix perovskite. Because of the aligned energy levels of iodide/chloride-mixed MA3 Bi2 Cl9-x Ix , a graded bandgap funnel structure is therefore formed, leading to the promotion of photoinduced charge transfer from the interior to the surface for efficient photocatalytic redox reaction. As a result, the hydrogen generation rate of the optimized MA3 Bi2 Cl9-x Ix is enhanced up to ≈341 ± 61.7 µmol h-1 with a Pt co-catalyst under visible light irradiation.
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Affiliation(s)
- Yunqi Tang
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Chun Hong Mak
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Chen Wang
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, 999077, China
| | - Yu Fu
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Department of Electronic and Computer Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR, 999077, China
| | - Fang-Fang Li
- Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Guohua Jia
- Curtin Institute of Functional Molecules and Interfaces, School of Molecular and Life Sciences, Curtin University GPO Box U1987, Perth, WA, 6845, Australia
| | - Chang-Wei Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung City, 402, Taiwan
- Department of Medical Research, China Medical University Hospital, Taichung City, 404, Taiwan
| | - Hsin-Hui Shen
- Department of Materials Science and Engineering, Faculty of Engineering, Monash University, Clayton, VIC, 3800, Australia
| | - Juan Carlos Colmenares
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Institute of Physical Chemistry, Polish Academy of Sciences, 01-224, Warsaw, Poland
| | - Haisheng Song
- Wuhan National Laboratory for Optoelectronics (WNLO), School of Optical and Electronic Information, Huazhong University of Science and Technology (HUST), Wuhan, Hubei, 430074, P. R. China
| | - Mingjian Yuan
- Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin, 300071, P. R. China
| | - Yue Chen
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, 999077, China
| | - Hsien-Yi Hsu
- School of Energy and Environment, Department of Materials Science and Engineering, City University of Hong Kong, Hong Kong, 999077, China
- Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
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7
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Gau D, Ramírez D, Iikawa F, Riveros G, Díaz P, Verdugo J, Núñez G, Lizama S, Lazo P, Dalchiele EA, Contreras L, Idigoras J, Anta J, Marotti RE. Photophysical and photoelectrochemical properties of CsPbBr3 films grown by an electrochemically assisted deposition. Chemphyschem 2022; 23:e202200286. [PMID: 35759412 DOI: 10.1002/cphc.202200286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/24/2022] [Indexed: 11/08/2022]
Abstract
Perovskite have had a great impact on the solid-state physics world in the last decade not only achieving great success in photovoltaics but, more recently, also in the implementation of other optoelectronic devices. One of the main obstacles for the adoption of Pb-based perovskite technologies are the high amounts of Pb needed in the conventional preparation methods. Here we present for the first time a detailed analysis of the photophysical and photoelectrochemical properties of CsPbBr3 films directly grown on FTO coated glass through a novel technique based in the electrodeposition of PbO2 as CsPbBr3 precursor. This technique allows to save up to 90 % of the Pb used compared to traditional methods and can be scalable compared with the commonly used spin-coating process. The low temperature analysis of their photoluminescence spectra, performed in both steady state and time dependence, revealed a strong interaction between electrons and longitudinal optical phonons dominant at high temperatures. On the other hand, the electrochemical and photoelectrochemical analysis proves that CsPbBr3 prepared using this new method has state-of-the-art features, showing a p-type behavior under depletion regime. This is also confirmed by photoelectrochemical measurements using p-benzoquinone as target molecule. These results prove that the proposed method can be used to produce excellent CsPbBr3 films, saving much of the lead waste.
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Affiliation(s)
- Daniel Gau
- Universidad de la Republica Facultad de Ingenieria, Physics, Julio Herrera y Reissig 565, 11300, Montevideo, URUGUAY
| | - Daniel Ramírez
- Universidad de Valparaiso, Instituto de Química, Avenida Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile, 2362735, Valparaíso, CHILE
| | - Fernando Iikawa
- State University of Campinas: Universidade Estadual de Campinas, Institute of Physics "Gleb Wataghin", 13083-859 Campinas, São Paulo, Brazil, 13083-872, Campinas, BRAZIL
| | - Gonzalo Riveros
- Universidad de Valparaiso, bInstituto de Química y Bioquímica, Avenida Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile, 2362735, Valparaíso, CHILE
| | - Patricia Díaz
- Universidad de Valparaiso, Instituto de Química y Bioquímica, Avenida Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile, 2362735, Valparaíso, CHILE
| | - Javier Verdugo
- Universidad de Valparaiso, Instituto de Química y Bioquímica, Avenida Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile, 2362735, Valparaíso, CHILE
| | - Gerard Núñez
- Universidad de Valparaiso, Instituto de Química y Bioquímica, Avenida Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile, 2362735, Valparaíso, CHILE
| | - Susy Lizama
- Universidad de Valparaiso, Instituto de Química y Bioquímica, Avenida, Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile, Playa Ancha, Valparaíso, Chile, 2362735, Valparaíso, CHILE
| | - Pamela Lazo
- Universidad de Valparaiso, Instituto de Química y Bioquímica, Avenida Gran Bretaña 1111, Playa Ancha, Valparaíso, Chile, 2362735, Valparaíso, CHILE
| | - Enrique A Dalchiele
- Universidad de la Republica Uruguay, Instituto de Física - Facultad de Ingeniería, Herrera y Reissig 565, Montevideo, Uruguay, 11300, Montevideo, URUGUAY
| | - Lidia Contreras
- Universidad Pablo de Olavide, Área de Química Física, Departamento de Sistemas Físicos, Químicos y Naturales, E-41013, Sevilla, Spain, 41013, Sevilla, SPAIN
| | - Jesús Idigoras
- Universidad Pablo de Olavide, Área de Química Física, Departamento de Sistemas Físicos, Químicos y Naturales, E-41013, Sevilla, Spain, 41013, Sevilla, SPAIN
| | - Juan Anta
- Universidad Pablo de Olavide, Área de Química Física, Departamento de Sistemas Físicos, Químicos y, Naturales, E-41013, Sevilla, Spain, 41013, Sevilla, SPAIN
| | - Ricardo E Marotti
- Universidad de la Republica Uruguay, Institutod de Física, Facultad de Ingeniería, Herrera y Reissig 565, Montevideo, Uruguay, 11000, Montevideo, URUGUAY
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8
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Jeong HW, Zsigmond TS, Samu GF, Janáky C. Sacrificial Agent Gone Rogue: Electron-Acceptor-Induced Degradation of CsPbBr 3 Photocathodes. ACS ENERGY LETTERS 2022; 7:417-424. [PMID: 35059504 PMCID: PMC8762702 DOI: 10.1021/acsenergylett.1c02130] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/21/2021] [Indexed: 05/08/2023]
Abstract
Lead halide perovskites (LHPs) have emerged as perspective materials for light harvesting, due to their tunable band gap and optoelectronic properties. Photocatalytic and photoelectrochemical (PEC) studies, employing LHP/liquid junctions, are evolving, where sacrificial reagents are often used. In this study, we found that a frequently applied electron scavenger (TCNQ) has dual roles: while it leads to rapid electron transfer from the electrode to TCNQ, enhancing the PEC performance, it also accelerates the decomposition of the CsPbBr3 photoelectrode. The instability of the films is caused by the TCNQ-mediated halide exchange between the dichloromethane solvent and the LHP film, during PEC operation. Charge transfer and halide exchange pathways were proposed on the basis of in situ spectroelectrochemical and ex situ surface characterization methods, also providing guidance on planning PEC experiments with such systems.
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Affiliation(s)
- Hye Won Jeong
- Department
of Physical Chemistry and Materials Science, Interdisciplinary Excellence
Centre, University of Szeged, Aradi Square 1, Szeged H-6720, Hungary
- H.W.J.: email,
| | - Tamás Sándor Zsigmond
- Department
of Physical Chemistry and Materials Science, Interdisciplinary Excellence
Centre, University of Szeged, Aradi Square 1, Szeged H-6720, Hungary
| | - Gergely Ferenc Samu
- Department
of Physical Chemistry and Materials Science, Interdisciplinary Excellence
Centre, University of Szeged, Aradi Square 1, Szeged H-6720, Hungary
- ELI-ALPS,
ELI-HU Non-Profit Ltd., Wolfgang Sandner street 3, Szeged H-6728, Hungary
| | - Csaba Janáky
- Department
of Physical Chemistry and Materials Science, Interdisciplinary Excellence
Centre, University of Szeged, Aradi Square 1, Szeged H-6720, Hungary
- ELI-ALPS,
ELI-HU Non-Profit Ltd., Wolfgang Sandner street 3, Szeged H-6728, Hungary
- C.J.: email, ; Twitter, @JanakyLab
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9
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Mechano-Chemical Synthesis, Structural Features and Optical Gap of Hybrid CH 3NH 3CdBr 3 Perovskite. MATERIALS 2021; 14:ma14206039. [PMID: 34683627 PMCID: PMC8538067 DOI: 10.3390/ma14206039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 09/30/2021] [Accepted: 10/08/2021] [Indexed: 11/16/2022]
Abstract
Hybrid methyl-ammonium (MA:CH3NH3+) lead halide MAPbX3 (X = halogen) perovskites exhibit an attractive optoelectronic performance that can be applied to the next generation of solar cells. To extend the field of interest of these hybrid materials, we describe the synthesis by a solvent-free ball-milling procedure, yielding a well crystallized, pure and moisture stable specimen of the Cd tribromide counterpart, MACdBr3, which contains chains of face-sharing CdBr6 octahedra in a framework defined in the Cmc21 (No 36) space group. The details of the structural arrangement at 295 K have been investigated by high angular resolution synchrotron x-ray diffraction (SXRD), including the orientation of the organic MA units, which are roughly aligned along the c direction, given the acentric nature of the space group. UV-vis spectra unveil a gap of 4.6 eV, which could be useful for ultraviolet detectors.
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10
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Lin G, Almakrami H, Emran H, Ruthen A, Hu J, Wei Z, Liu F. Enhanced Conversion Efficiency Enabled by Species Migration in Direct Solar Energy Storage. Chemphyschem 2021; 22:1193-1200. [PMID: 33969587 DOI: 10.1002/cphc.202100203] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/14/2021] [Indexed: 11/09/2022]
Abstract
Solar energy can be stored via either an indirect route in which electricity is involved as an intermediate step, or a direct route that utilizes photogenerated charge carriers for direct solar energy conversion. In this study, we investigate the fundamental difference between the direct and indirect routes in solar energy conversion using a new photoelectrochemical energy storage cell (PESC) as a model device. This PESC centers on a liquid junction that utilizes CH3 NH3 PbI3 perovskite to drive photoelectrochemical reactions of Benzoquinone (BQ) and Ferrocene (Fc) redox species. The experimental studies show that the equilibrium redox potentials are 0.1 V and -0.78 V (vs Ag/AgNO3 ) for Fc+ /Fc and BQ/BQ.- , respectively, which would produce a theoretical open-circuit voltage of 0.88 V for the storage device. The physics-based computational analysis shows a relatively flat reaction rate distribution in the electrode for the indirect route; however, in the direct route the photoelectrochemical reaction rate is critically affected by electron concentration due to strong light absorption of the perovskite material, which has been shown to vary by at least 10-fold in the transverse direction across the photoelectrode. The drastic variation of reaction rate in the photoelectrode creates an electric field that is 7.5 times stronger than the bulk electrolyte, which causes the photo-converted reaction product (i. e., BQ.- ) to drift away from the photoelectrode thereby creating a constant reaction driving force. As a result, it has been shown that the intrinsic solar to chemical conversion (ISTC) efficiency improves by ∼40 % for the direct route compared to the indirect route at 0.05 mA/cm2 .
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Affiliation(s)
- Guanzhou Lin
- Department of Mechanical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
| | - Husain Almakrami
- Department of Mechanical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
| | - Huzaifa Emran
- Department of Mechanical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
| | - Amar Ruthen
- Concord-Carlisle Regional High School, 120 Meriam Rd, Concord, MA 01742, USA
| | - Jie Hu
- Department of Mechanical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
| | - Zi Wei
- Department of Mechanical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
| | - Fuqiang Liu
- Department of Mechanical Engineering, University of Massachusetts Lowell, Lowell, Massachusetts 01854, USA
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11
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Liu R, Peng X, Han X, Mak CH, Cheng KC, Permatasari Santoso S, Shen HH, Ruan Q, Cao F, Yu ET, Chu PK, Hsu HY. Cost-effective liquid-junction solar devices with plasma-implanted Ni/TiN/CNF hierarchically structured nanofibers. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115167] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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12
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DuBose JT, Mathew PS, Cho J, Kuno M, Kamat PV. Modulation of Photoinduced Iodine Expulsion in Mixed Halide Perovskites with Electrochemical Bias. J Phys Chem Lett 2021; 12:2615-2621. [PMID: 33689371 DOI: 10.1021/acs.jpclett.1c00367] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Hole trapping at iodine (I) sites in MAPbBr1.5I1.5 mixed halide perovskites (MHP) is responsible for iodine migration and its eventual expulsion into solution. We have now modulated the photoinduced iodine expulsion in MHP through an externally applied electrochemical bias. At positive potentials, electron extraction at TiO2/MHP interfaces becomes efficient, leading to hole buildup within MHP films. This improved charge separation, in turn, favors iodine migration as evident from the increased apparent rate constant of iodine expulsion (kexpulsion = 0.0030 s-1). Conversely, at negative potentials (-0.3 V vs Ag/AgCl) electron-hole recombination is facilitated within MHP, slowing down iodine expulsion by an order of magnitude (kexpulsion = 0.00018 s-1). The tuning of the EFermi level through external bias modulates electron extraction at the TiO2/MHP interface and indirectly controls the buildup of holes, ultimately inducing iodine migration/expulsion. Suppressing iodine migration in perovskite solar cells is important for attaining greater stability since they operate under internal electrical bias.
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13
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Abstract
Metal-halide perovskites transformed optoelectronics research and development during the past decade. They have also gained a foothold in photocatalytic and photoelectrochemical processes recently, but their sensitivity to the most commonly applied solvents and electrolytes together with their susceptibility to photocorrosion hinders such applications. Understanding the elementary steps of photocorrosion of these materials can aid the endeavor of realizing stable devices. In this Perspective, we discuss both thermodynamic and kinetic aspects of photocorrosion processes occurring at the interface of perovskite photocatalysts and photoelectrodes with different electrolytes. We show how combined in situ and operando electrochemical techniques can reveal the underlying mechanisms. Finally, we also discuss emerging strategies to mitigate photocorrosion (such as surface protection, materials and electrolyte engineering, etc.).
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Affiliation(s)
- Gergely F Samu
- Department of Physical Chemistry and Materials Science, Interdisciplinary Excellence Centre, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary.,ELI-ALPS Research Institute, Wolfgang Sandner Street 3, Szeged H-6728, Hungary
| | - Csaba Janáky
- Department of Physical Chemistry and Materials Science, Interdisciplinary Excellence Centre, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary.,ELI-ALPS Research Institute, Wolfgang Sandner Street 3, Szeged H-6728, Hungary
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14
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Fu L, Fu K, Hsu HY, Gao X, Zou G. Ce4+ doping to modulate electrochemical and radiative-charge-transfer behaviors of CsPbBr3 perovskite nanocrystals. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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15
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Srivastava P, Bag M. Elucidating tuneable ambipolar charge transport and field induced bleaching at the CH3NH3PbI3/electrolyte interface. Phys Chem Chem Phys 2020; 22:11062-11074. [DOI: 10.1039/d0cp00682c] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tuneable ambipolar charge transport through a perovskite/electrolyte interface is demonstrated for the first time through EIS and field induced UV-Vis spectroscopy measurements.
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Affiliation(s)
- Priya Srivastava
- Advanced Research in Electrochemical Impedance Spectroscopy
- Department of Physics
- Indian Institute of Technology Roorkee
- Roorkee
- India
| | - Monojit Bag
- Advanced Research in Electrochemical Impedance Spectroscopy
- Department of Physics
- Indian Institute of Technology Roorkee
- Roorkee
- India
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16
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Electrodeposition of crystalline silicon films from silicon dioxide for low-cost photovoltaic applications. Nat Commun 2019; 10:5772. [PMID: 31852891 PMCID: PMC6920409 DOI: 10.1038/s41467-019-13065-w] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 07/16/2019] [Indexed: 11/08/2022] Open
Abstract
Crystalline-silicon solar cells have dominated the photovoltaics market for the past several decades. One of the long standing challenges is the large contribution of silicon wafer cost to the overall module cost. Here, we demonstrate a simple process for making high-purity solar-grade silicon films directly from silicon dioxide via a one-step electrodeposition process in molten salt for possible photovoltaic applications. High-purity silicon films can be deposited with tunable film thickness and doping type by varying the electrodeposition conditions. These electrodeposited silicon films show about 40 to 50% of photocurrent density of a commercial silicon wafer by photoelectrochemical measurements and the highest power conversion efficiency is 3.1% as a solar cell. Compared to the conventional manufacturing process for solar grade silicon wafer production, this approach greatly reduces the capital cost and energy consumption, providing a promising strategy for low-cost silicon solar cells production. The photovoltaics market has been dominated by crystalline silicon solar cells despite the high cost of the silicon wafers. Here Zou et al. develop a one-step electrodeposition process in molten salt to produce high-purity solar-grade silicon films, delivering power conversion efficiency of 3.1%.
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17
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Wygant BR, Ye AZ, Dolocan A, Vu Q, Abbot DM, Mullins CB. Probing the Degradation Chemistry and Enhanced Stability of 2D Organolead Halide Perovskites. J Am Chem Soc 2019; 141:18170-18181. [PMID: 31630513 DOI: 10.1021/jacs.9b08895] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Recent work on quasi-2D Ruddlesden-Popper phase organolead halide perovskites has shown that they possess many interesting optical and physical properties. Most notably, they are significantly more stable when exposed to moisture when compared to the typical 3D perovskite methylammonium lead iodide (MAPI); direct evidence for the chemical source of this stability remains elusive, however. Here, we present a detailed study of the superior moisture stability of a quasi-2D Ruddlesden-Popper perovskite, n-butylammonium methylammonium lead iodide (nBA-MAPI), compared to that of MAPI, and examine a simple, yet efficient, methodology to improve the stability of MAPI devices through the application of a thin layer of nBA-MAPI to the surface. By employing a variety of analytical techniques (photoluminescence, time-of-flight secondary ion mass spectrometry, cyclic voltammetry, X-ray diffraction) we determine that the improved stability of Ruddlesden-Popper perovskites is a consequence of a unique degradation pathway which produces a passivating surface layer, composed of increasingly stable phases of the 2D perovskite, via disproportionation. Our work establishes that this protective material isolates the bulk of the perovskite from a newly identified hydration layer which is found to accumulate at the C60/perovskite interface of full devices, slowing further hydrolysis reactions that would damage the device. As MAPI devices degrade quickly without any protection, a surface treatment of nBA-MAPI is an efficient way to delay device deterioration by creating an artificial 2D surface layer that similarly inhibits interaction with the hydration layer.
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18
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Balog Á, Samu GF, Kamat PV, Janáky C. Optoelectronic Properties of CuI Photoelectrodes. J Phys Chem Lett 2019; 10:259-264. [PMID: 30601661 PMCID: PMC6340132 DOI: 10.1021/acs.jpclett.8b03242] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 12/17/2018] [Indexed: 06/01/2023]
Abstract
Detailed mechanistic understanding of the optoelectronic features is a key factor in designing efficient and stable photoelectrodes. In situ spectroelectrochemical methods were employed to scrutinize the effect of trap states on the optical and electronic properties of CuI photoelectrodes and to assess their stability against (photo)electrochemical corrosion. The excitonic band in the absorption spectrum and the Raman spectral features were directly influenced by the applied bias potential. These spectral changes exhibit a good correlation with the alterations observed in the charge-transfer resistance. Interestingly, the population and depopulation of the trap states, which are responsible for the changes in both the optical and electronic properties, occur in a different potential/energy regime. Although cathodic photocorrosion of CuI is thermodynamically favored, this process is kinetically hindered, thus providing good stability in photoelectrochemical operation.
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Affiliation(s)
- Ádám Balog
- Department
of Physical Chemistry and Materials Science, Interdisciplinary Excellence
Centre, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
| | - Gergely F. Samu
- Department
of Physical Chemistry and Materials Science, Interdisciplinary Excellence
Centre, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
- ELI-ALPS
Research Institute, Dugonics
sq. 13, Szeged 6720, Hungary
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre
Dame, Indiana 46556, United States
| | - Prashant V. Kamat
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre
Dame, Indiana 46556, United States
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Csaba Janáky
- Department
of Physical Chemistry and Materials Science, Interdisciplinary Excellence
Centre, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
- ELI-ALPS
Research Institute, Dugonics
sq. 13, Szeged 6720, Hungary
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19
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Kim CH, Wang Y, Frisbie CD. Continuous and Reversible Tuning of Electrochemical Reaction Kinetics on Back-Gated 2D Semiconductor Electrodes: Steady-State Analysis Using a Hydrodynamic Method. Anal Chem 2018; 91:1627-1635. [DOI: 10.1021/acs.analchem.8b05216] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chang-Hyun Kim
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
| | - Yan Wang
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - C. Daniel Frisbie
- Department of Chemical Engineering and Materials Science, University of Minnesota, 421 Washington Avenue SE, Minneapolis, Minnesota 55455, United States
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20
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Li W, Fu HC, Li L, Cabán-Acevedo M, He JH, Jin S. Integrated Photoelectrochemical Solar Energy Conversion and Organic Redox Flow Battery Devices. Angew Chem Int Ed Engl 2018; 55:13104-13108. [PMID: 27654317 DOI: 10.1002/anie.201606986] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Indexed: 11/06/2022]
Abstract
Building on regenerative photoelectrochemical solar cells and emerging electrochemical redox flow batteries (RFBs), more efficient, scalable, compact, and cost-effective hybrid energy conversion and storage devices could be realized. An integrated photoelectrochemical solar energy conversion and electrochemical storage device is developed by integrating regenerative silicon solar cells and 9,10-anthraquinone-2,7-disulfonic acid (AQDS)/1,2-benzoquinone-3,5-disulfonic acid (BQDS) RFBs. The device can be directly charged by solar light without external bias, and discharged like normal RFBs with an energy storage density of 1.15 Wh L-1 and a solar-to-output electricity efficiency (SOEE) of 1.7 % over many cycles. The concept exploits a previously undeveloped design connecting two major energy technologies and promises a general approach for storing solar energy electrochemically with high theoretical storage capacity and efficiency.
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Affiliation(s)
- Wenjie Li
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA
| | - Hui-Chun Fu
- Division of Computer, Electrical and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Linsen Li
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA
| | - Miguel Cabán-Acevedo
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA
| | - Jr-Hau He
- Division of Computer, Electrical and Mathematical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Song Jin
- Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI, 53706, USA.
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21
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Samu G, Scheidt RA, Zaiats G, Kamat PV, Janáky C. Electrodeposition of Hole-Transport Layer on Methylammonium Lead Iodide Film: A Strategy To Assemble Perovskite Solar Cells. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2018; 30:4202-4206. [PMID: 30022806 PMCID: PMC6046219 DOI: 10.1021/acs.chemmater.8b01521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 06/12/2018] [Indexed: 06/08/2023]
Affiliation(s)
- Gergely
F. Samu
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
- ELI-ALPS
Research Institute, Dugonics
Square 13, Szeged 6720, Hungary
| | - Rebecca A. Scheidt
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Gary Zaiats
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Prashant V. Kamat
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Csaba Janáky
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
- MTA-SZTE
“Lendület” Photoelectrochemistry Research Group, Rerrich Square 1, Szeged H-6720, Hungary
- ELI-ALPS
Research Institute, Dugonics
Square 13, Szeged 6720, Hungary
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22
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Li Z, Mercado CC, Yang M, Palay E, Zhu K. Electrochemical impedance analysis of perovskite-electrolyte interfaces. Chem Commun (Camb) 2018; 53:2467-2470. [PMID: 28180211 DOI: 10.1039/c6cc10315d] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The flat band potentials and carrier densities of spin coated and sprayed MAPbI3, FA0.85Cs0.15PbI3, and MAPbBr3 perovskite films were determined using the Mott-Schottky relation. The films developed a space charge layer and exhibited p-type conduction with a carrier concentration of ∼1016 cm-3 for spin coated films. Electrochemical impedance spectra showed typical space charge impedance at frequencies >1 kHz, and an exceptional high capacitance at frequency <1 kHz owing to an ion diffusion component.
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Affiliation(s)
- Zhen Li
- National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA.
| | - Candy C Mercado
- Renewable and Sustainable Energy Institute, and Department of Chemistry and Biochemistry, University of Colorado, Boulder, CO 80309-0027, USA.
| | - Mengjin Yang
- National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA.
| | - Ethan Palay
- National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA.
| | - Kai Zhu
- National Renewable Energy Laboratory, 15013 Denver West Parkway, Golden, CO 80401, USA.
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23
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Samu G, Scheidt RA, Kamat PV, Janáky C. Electrochemistry and Spectroelectrochemistry of Lead Halide Perovskite Films: Materials Science Aspects and Boundary Conditions. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2018; 30:561-569. [PMID: 29503507 PMCID: PMC5828706 DOI: 10.1021/acs.chemmater.7b04321] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 12/01/2017] [Indexed: 05/20/2023]
Abstract
The unique optoelectronic properties of lead halide perovskites have triggered a new wave of excitement in materials chemistry during the past five years. Electrochemistry, spectroelectrochemistry, and photoelectrochemistry could be viable tools both for analyzing the optoelectronic features of these materials and for assembling them into hybrid architectures (e.g., solar cells). At the same time, the instability of these materials limits the pool of solvents and electrolytes that can be employed in such experiments. The focus of our study is to establish a stability window for electrochemical tests for all-inorganic CsPbBr3 and hybrid organic-inorganic MAPbI3 perovskites. In addition, we aimed to understand the reduction and oxidation events that occur and to assess the damage done during these processes at extreme electrochemical conditions. In this vein, we demonstrated the chemical, structural, and morphological changes of the films in both reductive and oxidative environments. Taking all these results together as a whole, we propose a set of boundary conditions and protocols for how electrochemical experiments with lead halide perovskites should be carried out and interpreted. The presented results will contribute to the understanding of the electrochemical response of these materials and lead to a standardization of results in the literature so that comparisons can more easily be made.
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Affiliation(s)
- Gergely
F. Samu
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged, H-6720, Hungary
| | - Rebecca A. Scheidt
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Prashant V. Kamat
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
- (P.V.K.) E-mail:
| | - Csaba Janáky
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged, H-6720, Hungary
- ELI-ALPS
Research Institute, Szeged, Dugonics sq. 13, 6720, Hungary
- (C.J.) E-mail:
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24
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Scheidt R, Samu GF, Janáky C, Kamat PV. Modulation of Charge Recombination in CsPbBr 3 Perovskite Films with Electrochemical Bias. J Am Chem Soc 2018; 140:86-89. [PMID: 29129051 PMCID: PMC5765538 DOI: 10.1021/jacs.7b10958] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Indexed: 12/20/2022]
Abstract
The charging of a mesoscopic TiO2 layer in a metal halide perovskite solar cell can influence the overall power conversion efficiency. By employing CsPbBr3 films deposited on a mesoscopic TiO2 film, we have succeeded in probing the influence of electrochemical bias on the charge carrier recombination process. The transient absorption spectroscopy experiments conducted at different applied potentials indicate a decrease in the charge carrier lifetimes of CsPbBr3 as we increase the potential from -0.6 to +0.6 V vs Ag/AgCl. The charge carrier lifetime increased upon reversing the applied bias, thus indicating the reversibility of the photoresponse to charging effects. The ultrafast spectroelectrochemical experiments described here offer a convenient approach to probe the charging effects in perovskite solar cells.
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Affiliation(s)
- Rebecca
A. Scheidt
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
| | - Gergely F. Samu
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
| | - Csaba Janáky
- Department
of Physical Chemistry and Materials Science, University of Szeged, Rerrich Square 1, Szeged H-6720, Hungary
- ELI-ALPS
Research Institute, Dugonics
sq. 13, Szeged H-6720, Hungary
| | - Prashant V. Kamat
- Radiation
Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, United States
- Department
of Chemistry and Biochemistry, University
of Notre Dame, Notre Dame, Indiana 46556, United States
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25
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Han S, Zhang J, Sun Z, Ji C, Zhang W, Wang Y, Tao K, Teng B, Luo J. Lead-Free Hybrid Material with an Exceptional Dielectric Phase Transition Induced by a Chair-to-Boat Conformation Change of the Organic Cation. Inorg Chem 2017; 56:13078-13085. [DOI: 10.1021/acs.inorgchem.7b01863] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shiguo Han
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
- College of Physics, Qingdao University, Qingdao 266071, P. R. China
| | - Jing Zhang
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Zhihua Sun
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Chengmin Ji
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Weichuan Zhang
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Yuyin Wang
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Kewen Tao
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
| | - Bing Teng
- College of Physics, Qingdao University, Qingdao 266071, P. R. China
| | - Junhua Luo
- State Key Laboratory
of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, P. R. China
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26
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Hasan M, Venkatesan S, Lyashenko D, Slinker JD, Zakhidov A. Solvent Toolkit for Electrochemical Characterization of Hybrid Perovskite Films. Anal Chem 2017; 89:9649-9653. [PMID: 28819972 DOI: 10.1021/acs.analchem.7b02800] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Organohalide lead (hybrid) perovskites have emerged as competitive semiconducting materials for photovoltaic devices due to their high performance and low cost. To further the understanding and optimization of these materials, solution-based methods for interrogating and modifying perovskite thin films are needed. In this work, we report a hydrofluoroether (HFE) solvent-based electrolyte for electrochemical processing and characterization of organic-inorganic trihalide lead perovskite thin films. Organic perovskite films are soluble in most of the polar organic solvents, and thus until now, they were not considered suitable for electrochemical processing. We have enabled electrochemical characterization and demonstrated a processing toolset for these materials utilizing highly fluorinated electrolytes based on a HFE solvent. Our results show that chemically orthogonal electrolytes based on HFE solvents do not dissolve organic perovskite films and thus allow electrochemical characterization of the electronic structure, investigation of charge transport properties, and potential electrochemical doping of the films with in situ diagnostic capabilities.
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Affiliation(s)
- Mehedhi Hasan
- Materials Science, Engineering, and Commercialization, Texas State University , San Marcos, Texas 78666, United States
| | - Swaminathan Venkatesan
- Materials Science, Engineering, and Commercialization, Texas State University , San Marcos, Texas 78666, United States
| | - Dmitry Lyashenko
- Department of Physics, Texas State University , San Marcos, Texas 78666, United States
| | - Jason D Slinker
- Department of Physics, The University of Texas at Dallas , 800 W. Campbell Road, PHY 36, Richardson, Texas 75080-3021, United States
| | - Alex Zakhidov
- Materials Science, Engineering, and Commercialization, Texas State University , San Marcos, Texas 78666, United States.,Department of Physics, Texas State University , San Marcos, Texas 78666, United States
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27
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Shallcross RC, Zheng Y, Saavedra SS, Armstrong NR. Determining Band-Edge Energies and Morphology-Dependent Stability of Formamidinium Lead Perovskite Films Using Spectroelectrochemistry and Photoelectron Spectroscopy. J Am Chem Soc 2017; 139:4866-4878. [DOI: 10.1021/jacs.7b00516] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R. Clayton Shallcross
- Department of Chemistry and
Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Yilong Zheng
- Department of Chemistry and
Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - S. Scott Saavedra
- Department of Chemistry and
Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Neal R. Armstrong
- Department of Chemistry and
Biochemistry, University of Arizona, Tucson, Arizona 85721, United States
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28
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Li W, Fu HC, Li L, Cabán-Acevedo M, He JH, Jin S. Integrated Photoelectrochemical Solar Energy Conversion and Organic Redox Flow Battery Devices. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201606986] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wenjie Li
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Avenue Madison WI 53706 USA
| | - Hui-Chun Fu
- Division of Computer, Electrical and Mathematical Sciences and Engineering; King Abdullah University of Science and Technology; Thuwal 23955-6900 Saudi Arabia
| | - Linsen Li
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Avenue Madison WI 53706 USA
| | - Miguel Cabán-Acevedo
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Avenue Madison WI 53706 USA
| | - Jr-Hau He
- Division of Computer, Electrical and Mathematical Sciences and Engineering; King Abdullah University of Science and Technology; Thuwal 23955-6900 Saudi Arabia
| | - Song Jin
- Department of Chemistry; University of Wisconsin-Madison; 1101 University Avenue Madison WI 53706 USA
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