1
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Heo J, Kim H, Park J, Sasongko NA, Jeong M, Han J, Seo T, Ji Y, Han J, Park M. Long-Term Comparisons of Photoluminescence Affected by Organic Cations of Formamidinium and Methylammonium in Monophasic Lead Iodide Perovskite Quantum Dots. Chem Asian J 2024:e202400347. [PMID: 38898704 DOI: 10.1002/asia.202400347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 05/14/2024] [Accepted: 06/19/2024] [Indexed: 06/21/2024]
Abstract
This study compared the photoluminescence (PL) stabilities of formamidinium (FA) and methylammonium (MA) in lead iodide perovskite quantum dots (QDs). To exclude other factors, such as size and purity, that may affect stability, MAPbI3 and FAPbI3 QDs with nearly identical sizes (~10.0 nm) were synthesized by controlling the ligand concentration and synthesis temperature. Transmission electron microscopy images and X-ray diffraction patterns confirmed homogeneous single-phase perovskite structures. Additionally, the bandgaps and sizes of the synthesized QDs closely matched those of the infinite quantum well model, which guaranteed that the photostability was solely caused by the different organic molecules in the two QDs. We analyzed the PL peak centers and full-width at half maximum of the QDs for 32 days. The enhanced stability of FAPbI3 was found to be caused by the nearly zero redshift (1.615 eV) of its PL peak, in contrast to the redshift (1.685→1.670 eV) of MAPbI3.
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Affiliation(s)
- Jaeseong Heo
- BB21 Plus Program, Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
| | - Hyewon Kim
- BB21 Plus Program, Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
| | - Jiyeong Park
- BB21 Plus Program, Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
| | | | - Mincheol Jeong
- BB21 Plus Program, Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
| | - Jaeeun Han
- BB21 Plus Program, Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
| | - Taeji Seo
- BB21 Plus Program, Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
| | - Yujeong Ji
- BB21 Plus Program, Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
| | - Jiyoung Han
- BB21 Plus Program, Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
| | - Myeongkee Park
- BB21 Plus Program, Department of Chemistry, Pukyong National University, Busan, 48513, Republic of Korea
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2
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Bensekhria A, Asuo IM, Ka I, Nechache R, Rosei F. Improved Performance of Air-Processed Perovskite Solar Cells via the Combination of Chlorine Precursors and Potassium Thiocyanate. ACS APPLIED MATERIALS & INTERFACES 2023; 15:56413-56423. [PMID: 38058107 DOI: 10.1021/acsami.3c11351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2023]
Abstract
Due to their low cost and high efficiency, hybrid perovskite solar cells (PSCs) have shown the most outstanding competitiveness among third-generation photovoltaic (PV) devices. However, several challenges remain unresolved, among which the limited stability is arguably the main. Chlorine (Cl) has been widely employed to yield PV performances, but the Cl-doping mechanism and its role in mixed-halide PSCs are not entirely understood. Here, we investigate the effect of Cl-doping using different precursors such as formamidinium chloride (FACl), cesium chloride (CsCl), and lead chloride (PbCl2), which lead to the incorporation of Cl at different sites of the perovskite crystal. We demonstrate that the stability and efficiency of air-processed PSCs are strongly affected by Cl bonding into the cationic chloride precursor. Furthermore, adding potassium thiocyanate (KSCN) leads to the maximum efficiency of 18.1%, improving the operational stability with only 18% PCE loss after 520 h, stored under ambient conditions. Incorporating CsCl and KSCN presents an effective approach to further boost the performance and thermal stability of PSCs by tailoring the composition of the perovskite's composition. Finally, we used the slot-die method to demonstrate that our strategy is scalable for large-area devices that have shown similar performance. Our results show that fully air-processed and stable PSCs with high efficiency for large production and commercialization are achievable.
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Affiliation(s)
- Ahmed Bensekhria
- Institut National de la Recherche Scientifique INRS-Énergie, Matériaux et Télécommunications,1650, Blvd. Lionel-Boulet, Varennes, Québec J3X 1P7, Canada
| | - Ivy M Asuo
- Pi-Sol Technologies Inc., 275 Bd Armand-Frappier Suite 2A, Laval, Québec H7V 4A7, Canada
| | - Ibrahima Ka
- Pi-Sol Technologies Inc., 275 Bd Armand-Frappier Suite 2A, Laval, Québec H7V 4A7, Canada
| | - Riad Nechache
- Pi-Sol Technologies Inc., 275 Bd Armand-Frappier Suite 2A, Laval, Québec H7V 4A7, Canada
| | - Federico Rosei
- Institut National de la Recherche Scientifique INRS-Énergie, Matériaux et Télécommunications,1650, Blvd. Lionel-Boulet, Varennes, Québec J3X 1P7, Canada
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3
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Krummer M, Glissmann N, Zimmermann B, Klingenberg P, Daub M, Hillebrecht H. Interactions of Pyridine‐Based Organic Cations as Structure‐Determining Factors in Perovskite‐Related Compounds
A
x
Pb(II)
y
Br
z. Eur J Inorg Chem 2023. [DOI: 10.1002/ejic.202200671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2023]
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4
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Jin X, Narisawa M, Piao L, Cheng XW. Protein tyrosine phosphatase receptor type D as a potential therapeutic target in pulmonary artery hypertension. J Hypertens 2022; 40:1650-1654. [PMID: 35943097 DOI: 10.1097/hjh.0000000000003232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Xueying Jin
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, Jilin PR China
| | - Megumi Narisawa
- Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Aichiken, Japan
| | - Limei Piao
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, Jilin PR China
| | - Xian Wu Cheng
- Department of Cardiology and Hypertension, Yanbian University Hospital, Yanji, Jilin PR China
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5
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Ummadisingu A, Mishra A, Kubicki DJ, LaGrange T, Dučinskas A, Siczek M, Bury W, Milić JV, Grätzel M, Emsley L. Multi-Length Scale Structure of 2D/3D Dion-Jacobson Hybrid Perovskites Based on an Aromatic Diammonium Spacer. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2104287. [PMID: 34816572 DOI: 10.1002/smll.202104287] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/23/2021] [Indexed: 05/18/2023]
Abstract
Dion-Jacobson (DJ) iodoplumbates based on 1,4-phenylenedimethanammonium (PDMA) have recently emerged as promising light absorbers for perovskite solar cells. While PDMA is one of the simplest aromatic spacers potentially capable of forming a DJ structure based on (PDMA)An-1 Pbn I3n+1 composition, the crystallographic proof has not been reported so far. Single crystal structure of a DJ phase based on PDMA is presented and high-field solid-state NMR spectroscopy is used to characterize the structure of PDMA-based iodoplumbates prepared as thin films and bulk microcrystalline powders. It is shown that their atomic-level structure does not depend on the method of synthesis and that it is ordered and similar for all iodoplumbate homologues. Moreover, the presence of lower (n) homologues in thin films is identified through UV-Vis spectroscopy, photoluminescence spectroscopy, and X-ray diffraction measurements, complemented by cathodoluminescence mapping. A closer look using cathodoluminescence shows that the micron-scale microstructure corresponds to a mixture of different layered homologues that are well distributed throughout the film and the presence of layer edge states which dominate the emission. This work therefore determines the formation of DJ phases based on PDMA as the spacer cation and reveals their properties on a multi-length scale, which is relevant for their application in optoelectronics.
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Affiliation(s)
- Amita Ummadisingu
- Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Aditya Mishra
- Laboratory of Magnetic Resonance, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Dominik J Kubicki
- Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
- Laboratory of Magnetic Resonance, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Thomas LaGrange
- Laboratory for Ultrafast Microscopy and Electron Scattering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Algirdas Dučinskas
- Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Miłosz Siczek
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, Wrocław, 50-383, Poland
| | - Wojciech Bury
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, Wrocław, 50-383, Poland
| | - Jovana V Milić
- Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Lyndon Emsley
- Laboratory of Magnetic Resonance, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
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Jin G, Liu T, Li Y, Zhou J, Zhang D, Pang P, Ye Z, Xing Z, Xing G, Chen J, Ma D. Low-dimensional phase suppression and defect passivation of quasi-2D perovskites for efficient electroluminescence and low-threshold amplified spontaneous emission. NANOSCALE 2022; 14:919-929. [PMID: 34988562 DOI: 10.1039/d1nr06549a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Quasi-2D metal halide perovskites are promising candidates for light-emitting applications owing to their large exciton binding energy and strong quantum confinement effect. Usually, quasi-2D perovskites are composed of multiple phases with various numbers of layers (n) of metal halide octahedron sheets, enabling light emission from the lowest-bandgap phase by cascade energy transfer. However, the energy transfer processes are extremely sensitive to the phase distribution and trap density in the quasi-2D perovskite films, and the insufficient energy transfer between different-n phases and the defect-induced traps would result in nonradiative losses. Here, significantly reduced nonradiative losses in the quasi-2D perovskite films are achieved by tailoring the low-dimensional phase components and lowering the density of trap states. Butylammonium bromide (BABr) and potassium thiocyanate (KSCN) are employed to synergistically decrease the nonradiative recombination in the quasi-2D perovskite films of PEABr : CsPbBr3. The incorporation of BABr is found to suppress the formation of the n = 1 phase, while adding KSCN can further reduce the low-n phases, passivate the notorious defects and improve the alignment of the high-n phases. By incorporating appropriate contents of BABr and KSCN, the resultant quasi-2D perovskite films show high photoluminescence quantum yield (PLQY) and highly ordered crystal orientation, which enable not only the green light-emitting diodes (LEDs) with a high external quantum efficiency (EQE) of 16.3%, but also the amplified spontaneous emission (ASE) with a low threshold of 2.6 μJ cm-2. These findings provide a simple and effective strategy to develop high-quality quasi-2D perovskites for LED and laser applications.
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Affiliation(s)
- Guangrong Jin
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, Guangdong 510640, China.
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Tanghao Liu
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Macau 999078, China.
| | - Yuanzhao Li
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, Guangdong 510640, China.
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou, Guangdong 510640, China
| | - Jiadong Zhou
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, Guangdong 510640, China.
| | - Dengliang Zhang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, Guangdong 510640, China.
| | - Peiyuan Pang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, Guangdong 510640, China.
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Macau 999078, China.
| | - Ziqing Ye
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, Guangdong 510640, China.
| | - Zhaohui Xing
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, Guangdong 510640, China.
| | - Guichuang Xing
- Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Macau 999078, China.
| | - Jiangshan Chen
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, Guangdong 510640, China.
| | - Dongge Ma
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou, Guangdong 510640, China.
- School of Physics and Optoelectronics, South China University of Technology, Guangzhou, Guangdong 510640, China
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7
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Ohmi T, Miura T, Shigematsu K, Koegel AA, Newell BS, Neilson JR, Ikoma T, Azuma M, Yamamoto T. Temperature-induced structural transition in an organic–inorganic hybrid layered perovskite (MA) 2PbI 2−xBr x(SCN) 2. CrystEngComm 2022. [DOI: 10.1039/d2ce00733a] [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
A temperature-induced structural phase transition is reported in layered hybrid perovskite (MA)2PbI2−xBrx(SCN)2 (0 ≤ x ≤ 1.2). The observed transition temperature decreases with Br substitution, suggesting a weakening of bonding interaction between the molecular ions.
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Affiliation(s)
- Takuya Ohmi
- Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan
| | - Tomoaki Miura
- Department of Chemistry, Niigata University, 2-8050 Ikarashi, Nishi-ku, Niigata, 950-2181, Japan
| | - Kei Shigematsu
- Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan
- Kanagawa Institute of Industrial Science and Technology, 705-1 Shimoimaizumi, Ebina 243-0435, Japan
| | - Alexandra A. Koegel
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, USA
| | - Brian S. Newell
- Molecular and Materials Analysis Center, Colorado State University, Fort Collins, Colorado 80523-1872, USA
| | - James R. Neilson
- Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523-1872, USA
| | - Tadaaki Ikoma
- Department of Chemistry, Niigata University, 2-8050 Ikarashi, Nishi-ku, Niigata, 950-2181, Japan
| | - Masaki Azuma
- Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan
- Kanagawa Institute of Industrial Science and Technology, 705-1 Shimoimaizumi, Ebina 243-0435, Japan
| | - Takafumi Yamamoto
- Laboratory for Materials and Structures, Tokyo Institute of Technology, Yokohama, Kanagawa, 226-8503, Japan
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8
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Ma Q, Liu J, Zhao Y, Qiu Y. A DFT study on the stability and optoelectronic properties of Pb/Sn/Ge-based MA 2B(SCN) 2I 2 perovskites. NEW J CHEM 2022. [DOI: 10.1039/d2nj03994j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Sn substitution and Sn doping reduce the band gap of MA2Pb(SCN)2I2 perovskites and make the absorption spectrum red-shifted.
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Affiliation(s)
- Qianya Ma
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Jianing Liu
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Yuanyuan Zhao
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
| | - Yongqing Qiu
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China
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9
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X-site doping in ABX3 triggers phase transition and higher Tc of the dielectric switch in perovskite. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.040] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Cheng F, Zhang J, Pauporté T. Chlorides, other Halides, and Pseudo-Halides as Additives for the Fabrication of Efficient and Stable Perovskite Solar Cells. CHEMSUSCHEM 2021; 14:3665-3692. [PMID: 34328278 DOI: 10.1002/cssc.202101089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/22/2021] [Indexed: 06/13/2023]
Abstract
Perovskite solar cells (PSCs) are attracting a tremendous attention from the scientific community due to their excellent power conversion efficiency, low cost, and great promise for the future of solar energy. The best PSCs have already achieved a certified power conversion efficiency (PCE) of 25.5 % after an unprecedented rapid performance rise. However, high requirements with respect to large area, high-efficiency devices, and stability are still the challenges. Major efforts, especially for achieving a high degree of chemical control, have been made to reach these targets. The use of halide additives has played a critical role in improving the efficiency and stability. The present paper reviews the important breakthroughs in PSC technologies made by using halide additives, especially chloride, and pseudo-halide additives for the preparation of the perovskite layers, other layers, and interfaces of the devices. These additives help perovskite (PVK) crystallization and layer morphology control, grain boundary reduction, bulk and interface defects passivation, and so on. Normally, these halide additives play different roles depending on their categories and their location. Herein, recent progresses made due to additives employment in every possible layer of PSCs are reviewed, with focus on chloride, other halides, and pseudo-halides as additives in PVK films, halide additives in carrier transport layers, and at PVK-contact interfaces. Finally, an outlook of engineering of these additives in PSC progress is given.
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Affiliation(s)
- Fei Cheng
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP), UMR8247, 11 rue P. et M. Curie, 75005, Paris, France
| | - Jie Zhang
- The Key Lab of Fuel Cell Technology of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Thierry Pauporté
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP), UMR8247, 11 rue P. et M. Curie, 75005, Paris, France
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11
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Li H, Jiang X, Wei Q, Zang Z, Ma M, Wang F, Zhou W, Ning Z. Low‐Dimensional Inorganic Tin Perovskite Solar Cells Prepared by Templated Growth. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104958] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Hansheng Li
- School of Physical Science and Technology Shanghaitech University 393 Middle Huaxia Road Shanghai China
| | - Xianyuan Jiang
- School of Physical Science and Technology Shanghaitech University 393 Middle Huaxia Road Shanghai China
| | - Qi Wei
- School of Physical Science and Technology Shanghaitech University 393 Middle Huaxia Road Shanghai China
| | - Zihao Zang
- School of Physical Science and Technology Shanghaitech University 393 Middle Huaxia Road Shanghai China
| | - Mingyu Ma
- School of Physical Science and Technology Shanghaitech University 393 Middle Huaxia Road Shanghai China
| | - Fei Wang
- School of Physical Science and Technology Shanghaitech University 393 Middle Huaxia Road Shanghai China
| | - Wenjia Zhou
- School of Physical Science and Technology Shanghaitech University 393 Middle Huaxia Road Shanghai China
| | - Zhijun Ning
- School of Physical Science and Technology Shanghaitech University 393 Middle Huaxia Road Shanghai China
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12
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Li H, Jiang X, Wei Q, Zang Z, Ma M, Wang F, Zhou W, Ning Z. Low-Dimensional Inorganic Tin Perovskite Solar Cells Prepared by Templated Growth. Angew Chem Int Ed Engl 2021; 60:16330-16336. [PMID: 33939285 DOI: 10.1002/anie.202104958] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Indexed: 11/10/2022]
Abstract
The manipulation of the dimensionality and nanostructures based on the precise control of the crystal growth kinetics boosts the flourishing development of perovskite optoelectronic materials and devices. Herein, a low-dimensional inorganic tin halide perovskite, CsSnBrI2-x (SCN)x , with a mixed 2D and 3D structure is fabricated. A kinetic study indicates that Sn(SCN)2 and phenylethylamine hydroiodate can form a 2D perovskite structure that acts as a template for the growth of the 3D perovskite CsSnBrI2-x (SCN)x . The film shows an out-of-plane orientation and a large grain size, giving rise to reduced defect density, superior thermostability, and oxidation resistance. A solar cell based on this low-dimensional film reaches a power conversion efficiency of 5.01 %, which is the highest value for CsSnBrx I3-x perovskite solar cells. Furthermore, the device shows enhanced stability in ambient air.
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Affiliation(s)
- Hansheng Li
- School of Physical Science and Technology, Shanghaitech University, 393 Middle Huaxia Road, Shanghai, China
| | - Xianyuan Jiang
- School of Physical Science and Technology, Shanghaitech University, 393 Middle Huaxia Road, Shanghai, China
| | - Qi Wei
- School of Physical Science and Technology, Shanghaitech University, 393 Middle Huaxia Road, Shanghai, China
| | - Zihao Zang
- School of Physical Science and Technology, Shanghaitech University, 393 Middle Huaxia Road, Shanghai, China
| | - Mingyu Ma
- School of Physical Science and Technology, Shanghaitech University, 393 Middle Huaxia Road, Shanghai, China
| | - Fei Wang
- School of Physical Science and Technology, Shanghaitech University, 393 Middle Huaxia Road, Shanghai, China
| | - Wenjia Zhou
- School of Physical Science and Technology, Shanghaitech University, 393 Middle Huaxia Road, Shanghai, China
| | - Zhijun Ning
- School of Physical Science and Technology, Shanghaitech University, 393 Middle Huaxia Road, Shanghai, China
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13
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Yao D, Hoang MT, Wang H. Low-Dimensional-Networked Perovskites with A-Site-Cation Engineering for Optoelectronic Devices. SMALL METHODS 2021; 5:e2001147. [PMID: 34928083 DOI: 10.1002/smtd.202001147] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/30/2020] [Indexed: 06/14/2023]
Abstract
Low-dimensional-networked (LDN) perovskites denote materials in which the molecular structure adopts 2D, 1D, or 0D arrangement. Compared to conventional 3D structured lead halide perovskite (chemical formula: ABX3 where A: monovalent cations, B: divalent cations, X: halides) that have been studied widely as light absorber and used in current state-or-the-art solar cells, LDN perovskite have unique properties such as more flexible crystal structure, lower ion transport mobility, robust stability against environmental stress such as moisture, thermal, etc., making them attractive for applications in optoelectronic devices. Since 2014, reports on LDN perovskite materials used in perovskite solar cells, light emitting diodes (LEDs), luminescent solar concentrators (LSC), and photodetectors have been reported, aiming to overcome the obstacles of conventional 3DN perovskite materials in these optoelectronic devices. In this review, the variable ligands used to make LDN perovskite materials are summarized, their distinct properties compared to conventional 3D perovskite materials. The research progress of optoelectronic devices including solar cells, LEDs, LSCs, and photodetectors that used different LDNs perovskite, the roles and working mechanisms of the LDN perovskites in the devices are also demonstrated. Finally, key research challenges and outlook of LDN materials for various optoelectronic applications are discussed.
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Affiliation(s)
- Disheng Yao
- School of Chemistry and Physics, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- School of Materials Science and Engineering, Guilin University of Technology, Guilin, 541004, China
| | - Minh Tam Hoang
- School of Chemistry and Physics, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
| | - Hongxia Wang
- School of Chemistry and Physics, Science and Engineering Faculty, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- Centre for Materials Science, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
- Centre for Clean Energy Technologies and Practices, Queensland University of Technology, 2 George Street, Brisbane, QLD, 4001, Australia
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14
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Yu X, Zhou Q, Xu J, Liang L, Wang X, Wu J, Gao P. The Impact of PbI
2
:KI Alloys on the Performance of Sequentially Deposited Perovskite Solar Cells. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202001109] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Xiaoyan Yu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Institution Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou, Fujian 350002 China
- Laboratory for Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen 361021 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Qin Zhou
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Institution Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou, Fujian 350002 China
- Laboratory for Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen 361021 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Jianbin Xu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Institution Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou, Fujian 350002 China
- Laboratory for Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen 361021 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Lusheng Liang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Institution Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou, Fujian 350002 China
- Laboratory for Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen 361021 China
- University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiaobing Wang
- College of Materials Science and Engineering Huaqiao University Xiamen 361021 China
| | - Jihuai Wu
- College of Materials Science and Engineering Huaqiao University Xiamen 361021 China
| | - Peng Gao
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of Nanomaterials Institution Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences Fuzhou, Fujian 350002 China
- Laboratory for Advanced Functional Materials Xiamen Institute of Rare Earth Materials Haixi Institute Chinese Academy of Sciences Xiamen 361021 China
- University of Chinese Academy of Sciences Beijing 100049 China
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15
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Xie H, Zheng B, Gao C, Xu J, Zhang J, Gao C, Liu X. Mixed lead source precursors for producing light absorption layers of perovskite solar cells. RSC Adv 2021; 11:1976-1983. [PMID: 35424191 PMCID: PMC8693714 DOI: 10.1039/d0ra08077b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/12/2020] [Indexed: 11/22/2022] Open
Abstract
Beside the conventional perovskite precursors with lead halides as lead sources, non-halide lead sources provide additional tools for tuning the properties of perovskite layers, and lead acetate is a promising candidate for non-halide lead sources. In this work, we develop the perovskite precursor with a mixed non-halide lead source by partially replacing lead acetate with lead thiocyanate. Scanning electron microscopy and X-ray diffraction measurements indicate that lead thiocyanate additive can remarkably increase the size of perovskite grains and the crystallization of perovskite layers. And the cross-sectional investigation illustrates that the penetration of perovskite materials into TiO2 porous layers also can be improved by the lead thiocyanate additive. As a consequence, the recombination process and charge extraction process of devices are improved. By optimizing the quantity of lead thiocyanate, the power conversion efficiency of devices is increased from 14.0% to 17.2%, and the stability of devices is elevated simultaneously.
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Affiliation(s)
- Honggang Xie
- Institute of Atomic and Molecular Physics, Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University Changchun 130012 China
| | - Bo Zheng
- Institute of Atomic and Molecular Physics, Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University Changchun 130012 China
| | - Can Gao
- Institute of Atomic and Molecular Physics, Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University Changchun 130012 China
| | - Jiannan Xu
- Institute of Atomic and Molecular Physics, Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University Changchun 130012 China
| | - Jiejing Zhang
- Institute of Atomic and Molecular Physics, Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University Changchun 130012 China
| | - Chunxiao Gao
- State Key Laboratory for Superhard Materials, Jilin University Changchun 130012 China
| | - Xizhe Liu
- Institute of Atomic and Molecular Physics, Jilin Provincial Key Laboratory of Applied Atomic and Molecular Spectroscopy, Jilin University Changchun 130012 China
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16
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Qiu X, Liu Y, Li W, Hu Y. Traps in metal halide perovskites: characterization and passivation. NANOSCALE 2020; 12:22425-22451. [PMID: 33151219 DOI: 10.1039/d0nr05739h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Metal halide perovskites (MHPs) have become a research focus in the field of optoelectronics due to their excellent optoelectronic properties and simple and cost-effective thin film manufacturing processes. In particular, the power conversion efficiency (PCE) of solar cells (SCs) and external quantum efficiency (EQE) of light-emitting diodes (LEDs) based on perovskite materials have reached 25.2% and 21.6%, respectively, in a short period, making perovskites especially promising for fabricating next-generation optoelectronic devices. Despite these inspiring results, obtaining high-performance, high-stability MHP-based devices still faces many challenges, among which the defects and the consequent traps in MHPs are key factors. Defect-induced traps can trap charge carriers or even act as non-radiative recombination centers, seriously degrading the device performance, causing hysteresis and deteriorating the stability of MHP-based devices. Thus, understanding the chemical/physical nature of traps and adopting appropriate strategies to passivate traps are important to enhance the device performance and stability. Herein we present a review in which the knowledge and understanding of traps in MHPs are considered and discussed. Moreover, the latest efforts on passivating traps in MHPs for improving device performance are summarized, with the hope of providing guidance to future development of high-performance and high-stability MHP-based devices.
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Affiliation(s)
- Xincan Qiu
- Key Laboratory for Micro/Nano Optoelectronic Devices of Ministry of Education and Hunan Provincial Key Laboratory of Low-Dimensional Structural Physics and Devices, School of Physics and Electronics, Hunan University, Changsha 410082, China.
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17
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Eze VO, Seike Y, Mori T. Synergistic Effect of Additive and Solvent Vapor Annealing on the Enhancement of MAPbI 3 Perovskite Solar Cells Fabricated in Ambient Air. ACS APPLIED MATERIALS & INTERFACES 2020; 12:46837-46845. [PMID: 32936610 DOI: 10.1021/acsami.0c08580] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To date, most high-performance perovskite solar cells (PSCs) are fabricated in an inert or vacuum condition to circumvent the moisture effect, which is one of the leading causes of sparse crystal nucleation and nonuniform morphology. Therefore, it is crucial to develop a simple approach to deposit a uniform and homogeneous perovskite on a planar substrate in ambient air for the mass production of PSCs. Herein, we investigated the synergistic effect of additive 1,8-diiodooctane (DIO) and solvent vapor annealing (SVA) treatments on the performance of PSCs fabricated in ambient air. It was found that the addition of 1 vol % DIO together with SVA treatment results in the enhancement of the perovskite film's crystallinity, grain size, and photophysical properties. PSCs containing 1 vol % DIO additive and SVA treatment exhibited a power conversion of efficiency (PCE) of 17.04%, which is markedly higher than the control device with a PCE of 10.61%. The results indicate that the additive DIO and SVA can work together to significantly improve the performance of PSCs fabricated in ambient air. This work provides a promising route for developing high-performance PSCs in the ambient environment.
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Affiliation(s)
- Vincent Obiozo Eze
- Department of Electricity and Materials Engineering, Graduate School of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-Cho, Toyota, Aichi 470-0392, Japan
- High-Performance Materials Institute, FAMU-FSU College of Engineering, 2525 Pottsdamer Street, Tallahassee, Florida 32310, United States
| | - Yoshiyuki Seike
- Department of Electricity and Materials Engineering, Graduate School of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-Cho, Toyota, Aichi 470-0392, Japan
| | - Tatsuo Mori
- Department of Electricity and Materials Engineering, Graduate School of Engineering, Aichi Institute of Technology, 1247 Yachigusa, Yakusa-Cho, Toyota, Aichi 470-0392, Japan
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18
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Lin H, Lee J, Han J, Lee C, Seo S, Tan S, Lee HM, Choi EJ, Strano MS, Yang Y, Maruyama S, Jeon I, Matsuo Y, Oh J. Denatured M13 Bacteriophage-Templated Perovskite Solar Cells Exhibiting High Efficiency. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:2000782. [PMID: 33101847 PMCID: PMC7578877 DOI: 10.1002/advs.202000782] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/28/2020] [Indexed: 06/01/2023]
Abstract
The M13 bacteriophage, a nature-inspired environmentally friendly biomaterial, is used as a perovskite crystal growth template and a grain boundary passivator in perovskite solar cells. The amino groups and carboxyl groups of amino acids on the M13 bacteriophage surface function as Lewis bases, interacting with the perovskite materials. The M13 bacteriophage-added perovskite films show a larger grain size and reduced trap-sites compared with the reference perovskite films. In addition, the existence of the M13 bacteriophage induces light scattering effect, which enhances the light absorption particularly in the long-wavelength region around 825 nm. Both the passivation effect of the M13 bacteriophage coordinating to the perovskite defect sites and the light scattering effect intensify when the M13 virus-added perovskite precursor solution is heated at 90 °C prior to the film formation. Heating the solution denatures the M13 bacteriophage by breaking their inter- and intra-molecular bondings. The denatured M13 bacteriophage-added perovskite solar cells exhibit an efficiency of 20.1% while the reference devices give an efficiency of 17.8%. The great improvement in efficiency comes from all of the three photovoltaic parameters, namely short-circuit current, open-circuit voltage, and fill factor, which correspond to the perovskite grain size, trap-site passivation, and charge transport, respectively.
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Affiliation(s)
- Hao‐Sheng Lin
- Department of Mechanical EngineeringSchool of EngineeringThe University of TokyoTokyo113‐8656Japan
- Department of Chemical EngineeringMassachusetts Insititute of TechonologyCambridgeMA02139USA
| | - Jong‐Min Lee
- Research Center for Energy Convergence and TechnologyPusan National UniversityBusan46241Republic of Korea
| | - Jiye Han
- Department of Nano Fusion TechnologyPusan National UniversityBusan46241Republic of Korea
| | - Changsoo Lee
- Department of Materials Science and EngineeringKAIST291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Seungju Seo
- Department of Mechanical EngineeringSchool of EngineeringThe University of TokyoTokyo113‐8656Japan
| | - Shaun Tan
- Department of Materials Science and Engineering and California Nano Systems InstituteUniversity of CaliforniaLos AngelesCA90095USA
| | - Hyuck Mo Lee
- Department of Materials Science and EngineeringKAIST291 Daehak‐ro, Yuseong‐guDaejeon34141Republic of Korea
| | - Eun Jung Choi
- Research Center for BIT Fusion TechnologyPusan National UniversityBusan46241Republic of Korea
| | - Michael S. Strano
- Department of Chemical EngineeringMassachusetts Insititute of TechonologyCambridgeMA02139USA
| | - Yang Yang
- Department of Materials Science and Engineering and California Nano Systems InstituteUniversity of CaliforniaLos AngelesCA90095USA
| | - Shigeo Maruyama
- Department of Mechanical EngineeringSchool of EngineeringThe University of TokyoTokyo113‐8656Japan
- Energy NanoEngineering LaboratoryNational Institute of Advanced Industrial Science and Technology (AIST)Tsukuba305‐8564Japan
| | - Il Jeon
- Department of Mechanical EngineeringSchool of EngineeringThe University of TokyoTokyo113‐8656Japan
- Department of Materials Science and Engineering and California Nano Systems InstituteUniversity of CaliforniaLos AngelesCA90095USA
- Department of Chemistry EducationGraduate School of Chemical MaterialsInstitute for Plastic Information and Energy MaterialsPusan National University63‐2 Busandaehak‐roBusan46241Republic of Korea
| | - Yutaka Matsuo
- Department of Mechanical EngineeringSchool of EngineeringThe University of TokyoTokyo113‐8656Japan
- Institutes of Innovation for Future SocietyNagoya UniversityFuro‐cho, Chikusa‐kuNagoya464‐8603Japan
| | - Jin‐Woo Oh
- Research Center for Energy Convergence and TechnologyPusan National UniversityBusan46241Republic of Korea
- Department of Nano Fusion TechnologyPusan National UniversityBusan46241Republic of Korea
- Research Center for BIT Fusion TechnologyPusan National UniversityBusan46241Republic of Korea
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19
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Dang Y, Liu G, Song J, Meng L, Sun Y, Hu W, Tao X. Layered Perovskite (CH 3NH 3) 2Pb(SCN) 2I 2 Single Crystals: Phase Transition and Moisture Stability. ACS APPLIED MATERIALS & INTERFACES 2020; 12:37713-37721. [PMID: 32814401 DOI: 10.1021/acsami.0c09251] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
To study stability issues of three-dimensional perovskites, there is a strategy to introduce the thiocyanate ion (SCN-) into CH3NH3PbI3 (MAPbI3) to solve these problems. Here, we report the bulk growth of layered perovskite MA2Pb(SCN)2I2 single crystals by different growth methods in an ambient atmosphere. We also investigate the structural determination and refinements, band gap, and photoluminescence of MA2Pb(SCN)2I2 single crystals. More importantly, the phase transition and stability of MA2Pb(SCN)2I2 are systematically demonstrated. MA2Pb(SCN)2I2 undergo the reversible single-crystal to single-crystal phase transition in the orthorhombic systems from the space group Pmmn (no. 59) to the space group Pmn21 (no. 31) at low temperature. Moreover, the temperature-dependent recovery behaviors of MA2Pb(SCN)2I2 single crystals, powders, and thin films at high temperature are studied in detail. Besides, the moisture stability of MA2Pb(SCN)2I2 is described when exposed to moisture condition by the experiment and theoretical calculations. It would be interesting to not only conduct a comprehensive study on the crystal structures and the phase transition processes of layered perovskites but also provide guidance for further optoelectronic applications of these perovskite materials.
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Affiliation(s)
- Yangyang Dang
- State Key Laboratory of Crystal Materials & Institute of Crystal Materials, Shandong University, No. 27 Shanda South Road, Jinan 250100, P. R. China
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences & Department of Chemistry, School of Sciences, & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Guokui Liu
- School of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, P. R. China
| | - Jiewu Song
- State Key Laboratory of Crystal Materials & Institute of Crystal Materials, Shandong University, No. 27 Shanda South Road, Jinan 250100, P. R. China
| | - Lingqiang Meng
- Materials Interfaces Center, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, P.R. China
| | - Yajing Sun
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences & Department of Chemistry, School of Sciences, & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences & Department of Chemistry, School of Sciences, & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, Tianjin 300072, P. R. China
| | - Xutang Tao
- State Key Laboratory of Crystal Materials & Institute of Crystal Materials, Shandong University, No. 27 Shanda South Road, Jinan 250100, P. R. China
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20
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Su J, Zhu T, Pauporté T, Ciofini I, Labat F. Improving the heterointerface in hybrid
organic–inorganic
perovskite solar cells by surface engineering: Insights from periodic hybrid density functional theory calculations. J Comput Chem 2020; 41:1740-1747. [DOI: 10.1002/jcc.26215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 04/10/2020] [Accepted: 04/14/2020] [Indexed: 11/11/2022]
Affiliation(s)
- Jun Su
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Chemical Theory and Modelling Group Paris France
| | - Tao Zhu
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris (IRCP) Paris France
| | - Thierry Pauporté
- Chimie ParisTech, PSL University, CNRS, Institut de Recherche de Chimie Paris (IRCP) Paris France
| | - Ilaria Ciofini
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Chemical Theory and Modelling Group Paris France
| | - Frédéric Labat
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Chemical Theory and Modelling Group Paris France
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21
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Liu C, Cheng YB, Ge Z. Understanding of perovskite crystal growth and film formation in scalable deposition processes. Chem Soc Rev 2020; 49:1653-1687. [PMID: 32134426 DOI: 10.1039/c9cs00711c] [Citation(s) in RCA: 132] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Hybrid organic-inorganic perovskite photovoltaics (PSCs) have attracted significant attention during the past decade. Despite the stellar rise of laboratory-scale PSC devices, which have reached a certified efficiency over 25% to date, there is still a large efficiency gap when transiting from small-area devices to large-area solar modules. Efficiency losses would inevitably arise from the great challenges of homogeneous coating of large-area high quality perovskite films. To address this problem, we provide an in-depth understanding of the perovskite nucleation and crystal growth kinetics, including the LaMer and Ostwald ripening models, which advises us that fast nucleation and slow crystallization are essential factors in forming high-quality perovskite films. Based on these cognitions, a variety of thin film engineering approaches will be introduced, including the anti-solvent, gas-assisted and solvent annealing treatments, Lewis acid-base adduct incorporation, etc., which are able to regulate the nucleation and crystallization steps. Upscaling the photovoltaic devices is the following step. We summarize the currently developed scalable deposition technologies, including spray coating, slot-die coating, doctor blading, inkjet printing and vapour-assisted deposition. These are more appealing approaches for scalable fabrication of perovskite films than the spin coating method, in terms of lower material/solution waste, more homogeneous thin film coating over a large area, and better morphological control of the film. The working principles of these techniques will be provided, which direct us that the physical properties of the precursor solutions and surface characteristics/temperature of the substrate are both dominating factors influencing the film morphology. Optimization of the perovskite crystallization and film formation process will be subsequently summarized from these aspects. Additionally, we also highlight the significance of perovskite stability, as it is the last puzzle to realize the practical applications of PSCs. Recent efforts towards improving the stability of PSC devices to environmental factors are discussed in this part. In general, this review, comprising the mechanistic analysis of perovskite film formation, thin film engineering, scalable deposition technologies and device stability, provides a comprehensive overview of the current challenges and opportunities in the field of PSCs, aiming to promote the future development of cost-effective up-scale fabrication of highly efficient and ultra-stable PSCs for practical applications.
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Affiliation(s)
- Chang Liu
- Ningbo Institute of Materials Technology and Engineering (NIMTE), Chinese Academy of Sciences (CAS), Ningbo 315201, China.
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22
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Jabbar R, Kamoun S. Synthesis, Molecular Structure and Theoretical Investigation of Optical and Electronic Properties of New Crystalline Polymer: [(C6H5NH3)2Cd(SCN)2Cl2]n. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-019-01321-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Lu CH, Biesold-McGee GV, Liu Y, Kang Z, Lin Z. Doping and ion substitution in colloidal metal halide perovskite nanocrystals. Chem Soc Rev 2020; 49:4953-5007. [PMID: 32538382 DOI: 10.1039/c9cs00790c] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The past decade has witnessed tremendous advances in synthesis of metal halide perovskites and their use for a rich variety of optoelectronics applications. Metal halide perovskite has the general formula ABX3, where A is a monovalent cation (which can be either organic (e.g., CH3NH3+ (MA), CH(NH2)2+ (FA)) or inorganic (e.g., Cs+)), B is a divalent metal cation (usually Pb2+), and X is a halogen anion (Cl-, Br-, I-). Particularly, the photoluminescence (PL) properties of metal halide perovskites have garnered much attention due to the recent rapid development of perovskite nanocrystals. The introduction of capping ligands enables the synthesis of colloidal perovskite nanocrystals which offer new insight into dimension-dependent physical properties compared to their bulk counterparts. It is notable that doping and ion substitution represent effective strategies for tailoring the optoelectronic properties (e.g., absorption band gap, PL emission, and quantum yield (QY)) and stabilities of perovskite nanocrystals. The doping and ion substitution processes can be performed during or after the synthesis of colloidal nanocrystals by incorporating new A', B', or X' site ions into the A, B, or X sites of ABX3 perovskites. Interestingly, both isovalent and heterovalent doping and ion substitution can be conducted on colloidal perovskite nanocrystals. In this review, the general background of perovskite nanocrystals synthesis is first introduced. The effects of A-site, B-site, and X-site ionic doping and substitution on the optoelectronic properties and stabilities of colloidal metal halide perovskite nanocrystals are then detailed. Finally, possible applications and future research directions of doped and ion-substituted colloidal perovskite nanocrystals are also discussed.
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Affiliation(s)
- Cheng-Hsin Lu
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Gill V Biesold-McGee
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Yijiang Liu
- College of Chemistry, Xiangtan University, Xiangtan, Hunan Province 411105, P. R. China.
| | - Zhitao Kang
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA. and Georgia Tech Research Institute, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Zhiqun Lin
- School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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Chen J, Park NG. Causes and Solutions of Recombination in Perovskite Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1803019. [PMID: 30230045 DOI: 10.1002/adma.201803019] [Citation(s) in RCA: 143] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 07/10/2018] [Indexed: 05/20/2023]
Abstract
Organic-inorganic hybrid perovskite materials are receiving increasing attention and becoming star materials on account of their unique and intriguing optical and electrical properties, such as high molar extinction coefficient, wide absorption spectrum, low excitonic binding energy, ambipolar carrier transport property, long carrier diffusion length, and high defects tolerance. Although a high power conversion efficiency (PCE) of up to 22.7% is certified for perovskite solar cells (PSCs), it is still far from the theoretical Shockley-Queisser limit efficiency (30.5%). Obviously, trap-assisted nonradiative (also called Shockley-Read-Hall, SRH) recombination in perovskite films and interface recombination should be mainly responsible for the above efficiency distance. Here, recent research advancements in suppressing bulk SRH recombination and interface recombination are systematically investigated. For reducing SRH recombination in the films, engineering perovskite composition, additives, dimensionality, grain orientation, nonstoichiometric approach, precursor solution, and post-treatment are explored. The focus herein is on the recombination at perovskite/electron-transporting material and perovskite/hole-transporting material interfaces in normal or inverted PSCs. Strategies for suppressing bulk and interface recombination are described. Additionally, the effect of trap-assisted nonradiative recombination on hysteresis and stability of PSCs is discussed. Finally, possible solutions and reasonable prospects for suppressing recombination losses are presented.
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Affiliation(s)
- Jiangzhao Chen
- School of Chemical Engineering, Sungkyunkwan Univeristy (SKKU), Suwon, 440-746, Korea
| | - Nam-Gyu Park
- School of Chemical Engineering, Sungkyunkwan Univeristy (SKKU), Suwon, 440-746, Korea
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Xie YM, Xu X, Ma C, Li M, Ma Y, Lee CS, Tsang SW. Synergistic Effect of Pseudo-Halide Thiocyanate Anion and Cesium Cation on Realizing High-Performance Pinhole-Free MA-Based Wide-Band Gap Perovskites. ACS APPLIED MATERIALS & INTERFACES 2019; 11:25909-25916. [PMID: 31264400 DOI: 10.1021/acsami.9b06315] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The performance of wide-band gap perovskite solar cells has a profound impact on the multijunction tandem device efficiency. However, once bromide (Br-) has been adopted to substitute the iodide (I-) in the MAPbI3 framework, it becomes very challenging to achieve uniform and high crystalline perovskite films. Here, a synergistic effect of pseudo-halide anion thiocyanate (SCN-) and inorganic cation cesium (Cs+) on the crystallization and film formation of MA-based wide-band gap perovskite is reported. It is found that the intrinsic ability of SCN- for increasing the perovskite crystal size can make the crystallization process more tolerable to the different affinity of the initial inhomogeneous small particles. However, the introduction of SCN- usually comes along with undesired large PbI2 aggregates. By further incorporating Cs+ in the precursor solution to improve the solubility of the halide/pseudo-halide coordination to Pb2+, the formation of the aggregated PbI2 particles is successfully inhibited. As a result, uniform pinhole-free MA0.9Cs0.1PbI2Br(SCN)0.08 perovskites with a wide band gap of 1.77 eV can be achieved. The corresponding photovoltaic device exhibits a record-high fill-factor over 80% and a promising power conversion efficiency of 16.3%.
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Affiliation(s)
- Yue-Min Xie
- City University of Hong Kong Shenzhen Research Institute , Shenzhen 518057 , P. R. China
| | - Xiuwen Xu
- City University of Hong Kong Shenzhen Research Institute , Shenzhen 518057 , P. R. China
| | | | - Menglin Li
- City University of Hong Kong Shenzhen Research Institute , Shenzhen 518057 , P. R. China
| | - Yuhui Ma
- City University of Hong Kong Shenzhen Research Institute , Shenzhen 518057 , P. R. China
| | | | - Sai-Wing Tsang
- City University of Hong Kong Shenzhen Research Institute , Shenzhen 518057 , P. R. China
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27
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Chu Y, Chen Y, Zhou J, Zhou B, Huang J. Efficient and Stable Perovskite Photodetectors Based on Thiocyanate-Assisted Film Formation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:14510-14514. [PMID: 30964260 DOI: 10.1021/acsami.9b01715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Thiocyanate-based perovskite (SCN-PVSK) photodetectors have been fabricated by introducing lead thiocyanate precursor. Incorporating SCN groups into CH3NH3PbI3 can significantly improve the device stability in air. Compared with pure CH3NH3PbI3 films, SCN-PVSK films have larger grain size and reduced trap states. The perovskite layers can be prepared by a simple solution method in air. Solvent effects on the crystallization of SCN-PVSK films have also been investigated. It is found that highly uniform, pinhole-free perovskite films can be obtained utilizing the N,N-dimethylformamide (DMF) solution of Pb(SCN)2. The SCN-PVSK based photodetectors performed a high responsivity of 12.3 A/W and a decent detectivity over 1.3 × 1013 Jones. More important, the SCN-PVSK based two-terminal photodetectors, without encapsulation, have shown great stability with 92% of the initial photocurrent being retained after storage in air (relative humidity >50%) for 10 days, whereas the value is only 10% for pure CH3NH3PbI3 devices tested under the same conditions.
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Affiliation(s)
- Yingli Chu
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering , Tongji University , Shanghai 201804 , P. R. China
| | - Yantao Chen
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering , Tongji University , Shanghai 201804 , P. R. China
| | - Jiachen Zhou
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering , Tongji University , Shanghai 201804 , P. R. China
| | - Bilei Zhou
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering , Tongji University , Shanghai 201804 , P. R. China
| | - Jia Huang
- Interdisciplinary Materials Research Center, School of Materials Science and Engineering , Tongji University , Shanghai 201804 , P. R. China
- Putuo District People's Hospital , Tongji University , Shanghai 200060 , P. R. China
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Cai T, Li F, Jiang Y, Liu X, Xia X, Wang X, Peng J, Wang L, Daoud WA. In situ inclusion of thiocyanate for highly luminescent and stable CH 3NH 3PbBr 3 perovskite nanocrystals. NANOSCALE 2019; 11:1319-1325. [PMID: 30604813 DOI: 10.1039/c8nr07987k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this work, an in situ thiocyanate inclusion method for the fabrication of highly luminescent and stable CH3NH3PbBr3 perovskite nanocrystals (NCs) is developed, employing Pb(SCN)2 as the lead precursor to partially or totally replace PbBr2 in the ligand-assisted reprecipitation (LARP) process. The in situ approach not only avoids the introduction of impurity elements, but also more interestingly incorporation of thiocyanate can control the crystallinity, particle size, luminescence and stability of CH3NH3PbBr3 NCs in a simple and effective manner. By adjusting the thiocyanate concentration, the photoluminescence (PL) of the synthesized CH3NH3PbBr3 NCs can be tuned in a range of 473-526 nm, as characterized by narrow emission line widths of 21-28 nm and outstanding photoluminescence quantum yields (PLQYs) of 73% to 96%. Meanwhile, the stability of CH3NH3PbBr3 NCs can be greatly improved as the amount of thiocyanate increases. The improvement in the optical performance and stability of CH3NH3PbBr3 NCs is mainly due to the contribution of higher crystallinity and, more stable and defect-free surface passivation induced by the presence of thiocyanate. This work paves a novel way for preparing highly luminescent and stable CH3NH3PbBr3 NCs.
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Affiliation(s)
- Tao Cai
- Department of Materials Science and Engineering, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China.
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Asuo IM, Fourmont P, Ka I, Gedamu D, Bouzidi S, Pignolet A, Nechache R, Cloutier SG. Highly Efficient and Ultrasensitive Large-Area Flexible Photodetector Based on Perovskite Nanowires. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1804150. [PMID: 30609286 DOI: 10.1002/smll.201804150] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/18/2018] [Indexed: 06/09/2023]
Abstract
Hybrid organic-inorganic perovskites have shown exceptional semiconducting properties and microstructural versatility for inexpensive, solution-processable photovoltaic and optoelectronic devices. In this work, an all-solution-based technique in ambient environment for highly sensitive and high-speed flexible photodetectors using high crystal quality perovskite nanowires grown on Kapton substrate is presented. At 10 V, the optimized photodetector exhibits a responsivity as high as 0.62 A W-1 , a maximum specific detectivity of 7.3 × 1012 cm Hz1/2 W-1 , and a rise time of 227.2 µs. It also shows remarkable photocurrent stability even beyond 5000 bending cycles. Moreover, a deposition of poly(methyl methacrylate) (PMMA) as a protective layer on the perovskite yields significantly better stability under ambient air operation: the PMMA-protected devices are stable for over 30 days. This work demonstrates a cost-effective fabrication technique for high-performance flexible photodetectors and opens opportunities for research advancements in broadband and large-scale flexible perovskite-based optoelectronic devices.
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Affiliation(s)
- Ivy M Asuo
- Institut National de la Recherche Scientifique (INRS), Centre Énergie Matériaux Télécommunications, 1650 Blvd. Lionel-Boulet, Varennes, QC, J3X 1S2, Canada
- École de technologie supérieure (ÉTS), Département de Génie Électrique, 1100 rue Notre-Dame Ouest, Montréal, QC, H3C 1K3, Canada
| | - Paul Fourmont
- École de technologie supérieure (ÉTS), Département de Génie Électrique, 1100 rue Notre-Dame Ouest, Montréal, QC, H3C 1K3, Canada
| | - Ibrahima Ka
- École de technologie supérieure (ÉTS), Département de Génie Électrique, 1100 rue Notre-Dame Ouest, Montréal, QC, H3C 1K3, Canada
| | - Dawit Gedamu
- École de technologie supérieure (ÉTS), Département de Génie Électrique, 1100 rue Notre-Dame Ouest, Montréal, QC, H3C 1K3, Canada
| | - Soraya Bouzidi
- École de technologie supérieure (ÉTS), Département de Génie Électrique, 1100 rue Notre-Dame Ouest, Montréal, QC, H3C 1K3, Canada
| | - Alain Pignolet
- Institut National de la Recherche Scientifique (INRS), Centre Énergie Matériaux Télécommunications, 1650 Blvd. Lionel-Boulet, Varennes, QC, J3X 1S2, Canada
| | - Riad Nechache
- École de technologie supérieure (ÉTS), Département de Génie Électrique, 1100 rue Notre-Dame Ouest, Montréal, QC, H3C 1K3, Canada
| | - Sylvain G Cloutier
- École de technologie supérieure (ÉTS), Département de Génie Électrique, 1100 rue Notre-Dame Ouest, Montréal, QC, H3C 1K3, Canada
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Effects of Zn2+ ion doping on hybrid perovskite crystallization and photovoltaic performance of solar cells. Chem Phys 2019. [DOI: 10.1016/j.chemphys.2018.09.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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31
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Numata Y, Sanehira Y, Ishikawa R, Shirai H, Miyasaka T. Thiocyanate Containing Two-Dimensional Cesium Lead Iodide Perovskite, Cs 2PbI 2(SCN) 2: Characterization, Photovoltaic Application, and Degradation Mechanism. ACS APPLIED MATERIALS & INTERFACES 2018; 10:42363-42371. [PMID: 30426740 DOI: 10.1021/acsami.8b15578] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We explored thiocyanate (SCN)-based two-dimensional (2D) organometal lead halide perovskite families toward photovoltaic applications. Using an SCN axial ligand and various cation species, we examined AA'PbI2(SCN)2-type 2D perovskite by replacing the cation species (AA') between methylammonium (MA), formamidinium (FA), and cesium. Among various cation compositions, only all-inorganic cesium-based SCN perovskite, Cs2PbI2(SCN)2, film showed high thermal stability compared to known 2D perovskites. Perovskite solar cells (PSCs) using the Cs2PbI2(SCN)2 absorber yielded approximately 2% conversion efficiency on the mesoscopic device. Relatively low efficiency is attributed, in addition to optical properties (large band gap (2.05 eV) and exciton absorption), to the orientation of perovskite layer parallel to the layered structure, preventing carrier extraction from the light-absorber perovskite. In device stability, the Cs-based 2D perovskite was stable against oxygen (oxidation), whereas it was found to be unstable against humidity. X-ray diffraction and X-ray photoelectron spectroscopy measurements showed that, unlike long alkylammonium-based 2D perovskite families such as BA2PbI4 (BA = butylammonium), the Cs-based 2D perovskite can undergo hydrolysis due to the hydrophilic Cs cations.
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Affiliation(s)
- Youhei Numata
- Department of Engineering , Toin University of Yokohama , 1614 Kurgane-cho , Aoba, Yokohama , Kanagawa 225-8503 Japan
| | - Yoshitaka Sanehira
- Department of Engineering , Toin University of Yokohama , 1614 Kurgane-cho , Aoba, Yokohama , Kanagawa 225-8503 Japan
| | - Ryo Ishikawa
- Department of Functional Materials Science, Graduate School of Science and Engineering , Saitama University , 255 Shimo-okubo , Sakura-ku, Saitama 338-8570 Japan
| | - Hajime Shirai
- Department of Functional Materials Science, Graduate School of Science and Engineering , Saitama University , 255 Shimo-okubo , Sakura-ku, Saitama 338-8570 Japan
| | - Tsutomu Miyasaka
- Department of Engineering , Toin University of Yokohama , 1614 Kurgane-cho , Aoba, Yokohama , Kanagawa 225-8503 Japan
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Dunlap-Shohl WA, Zhou Y, Padture NP, Mitzi DB. Synthetic Approaches for Halide Perovskite Thin Films. Chem Rev 2018; 119:3193-3295. [DOI: 10.1021/acs.chemrev.8b00318] [Citation(s) in RCA: 334] [Impact Index Per Article: 55.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wiley A. Dunlap-Shohl
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Yuanyuan Zhou
- School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - Nitin P. Padture
- School of Engineering, Brown University, Providence, Rhode Island 02912, United States
| | - David B. Mitzi
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
- Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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Chen J, Kim SG, Park NG. FA 0.88 Cs 0.12 PbI 3-x (PF 6 ) x Interlayer Formed by Ion Exchange Reaction between Perovskite and Hole Transporting Layer for Improving Photovoltaic Performance and Stability. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1801948. [PMID: 30141262 DOI: 10.1002/adma.201801948] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 07/05/2018] [Indexed: 05/06/2023]
Abstract
Interface engineering to form an interlayer via ion exchange reaction is reported. A FA0.88 Cs0.12 PbI3 formamidinium (FA) perovskite layer is first prepared, then FAPF6 solution with different concentrations is spin-coated on top of the perovskite film, which leads to a partial substitution of iodide by PF6- ion. The second phase with nominal composition of FA0.88 Cs0.12 PbI3-x (PF6 )x is grown at the grain boundary, which has island morphology and its size depends on the FAPF6 solution concentration. The lattice is expanded and bandgap is reduced due to inclusion of larger PF6- ions. The power conversion efficiency (PCE) is significantly enhanced from 17.8% to 19.3% as a consequence of improved fill factor and open-circuit voltage (Voc ). In addition, current-voltage hysteresis is reduced. Post-treatment with FAPF6 reduces defect density and enhances carrier lifetime, which is responsible for the improved photovoltaic performance and reduced hysteresis. The unencapsulated device with post-treated perovskite film demonstrates better stability than the pristine perovskite, where the initial PCE retains over 80% after 528 h exposure under relative humidity of around 50-70% in the dark and 92% after 360 h under one sun illumination.
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Affiliation(s)
- Jiangzhao Chen
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 440-746, South Korea
| | - Seul-Gi Kim
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 440-746, South Korea
| | - Nam-Gyu Park
- School of Chemical Engineering, Sungkyunkwan University (SKKU), Suwon, 440-746, South Korea
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Nishida J, Breen JP, Lindquist KP, Umeyama D, Karunadasa HI, Fayer MD. Dynamically Disordered Lattice in a Layered Pb-I-SCN Perovskite Thin Film Probed by Two-Dimensional Infrared Spectroscopy. J Am Chem Soc 2018; 140:9882-9890. [PMID: 30024160 DOI: 10.1021/jacs.8b03787] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The dynamically flexible lattices in lead halide perovskites may play important roles in extending carrier recombination lifetime in 3D perovskite solar-cell absorbers and in exciton self-trapping in 2D perovskite white-light phosphors. Two-dimensional infrared (2D IR) spectroscopy was applied to study a recently reported Pb-I-SCN layered perovskite. The Pb-I-SCN perovskite was spin-coated on a SiO2 surface as a thin film, with a thickness of ∼100 nm, where the S12CN- anions were isotopically diluted with the ratio of S12CN:S13CN = 5:95 to avoid vibrational coupling and excitation transfer between adjacent SCN- anions. The 12CN stretch mode of the minor S12CN- component was the principal vibrational probe that reported on the structural evolution through 2D IR spectroscopy. Spectral diffusion was observed with a time constant of 4.1 ± 0.3 ps. Spectral diffusion arises from small structural changes that result in sampling of frequencies within the distribution of frequencies comprising the inhomogeneously broadened infrared absorption band. These transitions among discrete local structures are distinct from oscillatory phonon motions of the lattice. To accurately evaluate the structural dynamics through measurement of spectral diffusion, the vibrational coupling between adjacent SCN- anions had to be carefully treated. Although the inorganic layers of typical 2D perovskites are structurally isolated from each other, the 2D IR data demonstrated that the layers of the Pb-I-SCN perovskite are vibrationally coupled. When both S12CN- and S13CN- were pumped simultaneously, cross-peaks between S12CN and S13CN vibrations and an oscillating 2D band shape of the S12CN- vibration were observed. Both observables demonstrate vibrational coupling between the closest SCN- anions, which reside in different inorganic layers. The thin films and the isotopic dilution produced exceedingly small vibrational echo signal fields; measurements were made possible using the near-Brewster's angle reflection pump-probe geometry.
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Affiliation(s)
- Jun Nishida
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
| | - John P Breen
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
| | - Kurt P Lindquist
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
| | - Daiki Umeyama
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
| | - Hemamala I Karunadasa
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
| | - Michael D Fayer
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
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35
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Analysing the Prospects of Perovskite Solar Cells within the Purview of Recent Scientific Advancements. CRYSTALS 2018. [DOI: 10.3390/cryst8060242] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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36
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Daub M, Hillebrecht H. Tailoring the Band Gap in 3D Hybrid Perovskites by Substitution of the Organic Cations: (CH 3 NH 3 ) 1-2y (NH 3 (CH 2 ) 2 NH 3 ) 2y Pb 1-y I 3 (0≤y≤0.25). Chemistry 2018; 24:9075-9082. [PMID: 29873119 DOI: 10.1002/chem.201800244] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Indexed: 11/05/2022]
Abstract
Tuning the optical properties of MAPbI3 (MA=methylammonium) is a key requirement to increase the efficiency of perovskite solar cells (PSCs). Simple precipitation from solution allows the partial substitution of MA in MAPbI3 by H3 NCH2 CH2 NH3 (H2 en). Surprisingly, there is 1:1 exchange of the monovalent cation MA by the dication H2 en. The charge compensation results from a deficit of Pb2+ , leading to a series MA1-2y (H2 en)2y Pb1-y I3 with 0≤y≤0.25. This model has been supported by single-crystal measurements and NMR investigations. The substitution results in a continuous shift of the band gap from 1.51 to 2.1 eV and a color change from black to orange-red. The H2 en content stabilizes the cubic high-temperature (HT) form of MAPbI3 . There is a linear correlation between band gap and unit cell volume. The substitution enables controlled band gap tuning because the extent of substitution is closely related to the applied MA:H2 en ratio in solution.
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Affiliation(s)
- Michael Daub
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs-Universität, Albertstraße 21, 79104, Freiburg, Germany.,Freiburger Materialforschungszentrum FMF, Albert-Ludwigs-Universität, Stefan-Meier-Straße 25, 79104, Freiburg, Germany
| | - Harald Hillebrecht
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs-Universität, Albertstraße 21, 79104, Freiburg, Germany.,Freiburger Materialforschungszentrum FMF, Albert-Ludwigs-Universität, Stefan-Meier-Straße 25, 79104, Freiburg, Germany
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Raza E, Aziz F, Ahmad Z. Stability of organometal halide perovskite solar cells and role of HTMs: recent developments and future directions. RSC Adv 2018; 8:20952-20967. [PMID: 35557744 PMCID: PMC9092397 DOI: 10.1039/c8ra03477j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 05/26/2018] [Indexed: 11/21/2022] Open
Abstract
Perovskite solar cells (PSCs) have recently emerged as one of the most exciting fields of research of our time, and the World Economic Forum in 2016 recognized them as one of the top 10 technologies in 2016. With 22.7% power conversion efficiency, PSCs are poised to revolutionize the way power is produced, stored and consumed. However, the widespread use of PSCs requires addressing the stability issue. Therefore, it is now time to focus on the critical step i.e. stability under the operating conditions for the development of a sustainable and durable PV technology based on PSCs. In order to improve the stability of PSCs, hole transport materials (HTMs) have been considered as the paramount components. This is due to the fact that most of the organic HTMs possess a hygroscopic and acidic nature that leads to poor stability of the PSCs. This article reviews briefly but comprehensively the environmental stability issues of PSCs, fundamentals, strategies for improvement, the role of HTMs towards stability and various types of HTMs. Also the environmental parameters affecting the performance of perovskite solar cells including temperature, moisture and light soaking environment have been considered.
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Affiliation(s)
- Ehsan Raza
- Department of Electronics, Faculty of Physical and Numerical Sciences, University of Peshawar Peshawar 25120 Pakistan
| | - Fakhra Aziz
- Department of Electronics, Jinnah College for Women, University of Peshawar Peshawar 25120 Pakistan
| | - Zubair Ahmad
- Center for Advanced Materials (CAM), Qatar University 2713 Doha Qatar
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Chandra Deb Nath N, Yoo K, Lee JJ. Halogen-free guanidinium-based perovskite solar cell with enhanced stability. RSC Adv 2018; 8:17365-17372. [PMID: 35539246 PMCID: PMC9080437 DOI: 10.1039/c8ra00639c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Accepted: 04/17/2018] [Indexed: 11/21/2022] Open
Abstract
Herein, we report a new halogen-free and excellent stable perovskite, GAPb(SCN)3, which was prepared from the symmetric guanidinium cation (GA+) with nearly zero dipole moment, and pseudohalogen (SCN-), for the fabrication of stable perovskite solar cells. GAPb(SCN)3 exhibits an orthorhombic crystal phase, with optical band gap of 1.43 eV. The orthorhombic crystal phase shifted to a cubic phase, due to the formation of PbS beyond 150 °C. GAPb(SCN)3 itself showed excellent stability upon being exposed to ambient conditions for 30 days, without degradation of its optical or crystallographic properties. This superior stability could be attributable to the strong electrostatic interaction between SCN- and Pb2+, and hydrogen bonding between SCN- and GA+. Even though it has a suitable band gap, it exhibited a significantly lower efficiency of ca. 0.11%. The very low performance could be attributable to the significantly low light absorption coefficient, and large non-radiative recombination of photo-induced charges via an oxidized form of S at the TiO2/perovskite interface.
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Affiliation(s)
- Narayan Chandra Deb Nath
- Department of Energy & Materials Engineering, Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University Seoul 100-715 Republic of Korea +82-2-2260-4979
| | - Kicheon Yoo
- Department of Energy & Materials Engineering, Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University Seoul 100-715 Republic of Korea +82-2-2260-4979
| | - Jae-Joon Lee
- Department of Energy & Materials Engineering, Research Center for Photoenergy Harvesting & Conversion Technology (phct), Dongguk University Seoul 100-715 Republic of Korea +82-2-2260-4979
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39
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Fu Q, Tang X, Huang B, Hu T, Tan L, Chen L, Chen Y. Recent Progress on the Long-Term Stability of Perovskite Solar Cells. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1700387. [PMID: 29876199 PMCID: PMC5979782 DOI: 10.1002/advs.201700387] [Citation(s) in RCA: 111] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 09/06/2017] [Indexed: 05/24/2023]
Abstract
As rapid progress has been achieved in emerging thin film solar cell technology, organic-inorganic hybrid perovskite solar cells (PVSCs) have aroused many concerns with several desired properties for photovoltaic applications, including large absorption coefficients, excellent carrier mobility, long charge carrier diffusion lengths, low-cost, and unbelievable progress. Power conversion efficiencies increased from 3.8% in 2009 up to the current world record of 22.1%. However, poor long-term stability of PVSCs limits the future commercial application. Here, the degradation mechanisms for unstable perovskite materials and their corresponding solar cells are discussed. The strategies for enhancing the stability of perovskite materials and PVSCs are also summarized. This review is expected to provide helpful insights for further enhancing the stability of perovskite materials and PVSCs in this exciting field.
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Affiliation(s)
- Qingxia Fu
- College of ChemistryNanchang University999 Xuefu AvenueNanchang330031P. R. China
| | - Xianglan Tang
- College of ChemistryNanchang University999 Xuefu AvenueNanchang330031P. R. China
| | - Bin Huang
- College of ChemistryNanchang University999 Xuefu AvenueNanchang330031P. R. China
| | - Ting Hu
- College of ChemistryNanchang University999 Xuefu AvenueNanchang330031P. R. China
- Jiangxi Provincial Key Laboratory of New Energy Chemistry/Institute of PolymersNanchang University999 Xuefu AvenueNanchang330031P. R. China
| | - Licheng Tan
- College of ChemistryNanchang University999 Xuefu AvenueNanchang330031P. R. China
- Jiangxi Provincial Key Laboratory of New Energy Chemistry/Institute of PolymersNanchang University999 Xuefu AvenueNanchang330031P. R. China
| | - Lie Chen
- College of ChemistryNanchang University999 Xuefu AvenueNanchang330031P. R. China
- Jiangxi Provincial Key Laboratory of New Energy Chemistry/Institute of PolymersNanchang University999 Xuefu AvenueNanchang330031P. R. China
| | - Yiwang Chen
- College of ChemistryNanchang University999 Xuefu AvenueNanchang330031P. R. China
- Jiangxi Provincial Key Laboratory of New Energy Chemistry/Institute of PolymersNanchang University999 Xuefu AvenueNanchang330031P. R. China
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40
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The Deposition of (CH3NH3)2Pb(SCN)2I2 thin films and their application in perovskites solar cells. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.01.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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41
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Lv Y, Si D, Song X, Wang K, Wang S, Zhao Z, Hao C, Wei L, Shi Y. Pseudohalogen-Based 2D Perovskite: A More Complex Thermal Degradation Mechanism Than 3D Perovskite. Inorg Chem 2018; 57:2045-2050. [DOI: 10.1021/acs.inorgchem.7b02949] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yanping Lv
- State Key Laboratory
of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Duanhui Si
- State Key Laboratory
of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Xuedan Song
- State Key Laboratory
of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Kai Wang
- State Key Laboratory
of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Shi Wang
- State Key Laboratory
of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Zhengyan Zhao
- State Key Laboratory
of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
| | - Ce Hao
- State Key Laboratory
of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
- Dalian University of Technology, Panjin Campus, Panjin, 124221, P. R. China
| | - Lijuan Wei
- Dalian University of Technology, Panjin Campus, Panjin, 124221, P. R. China
| | - Yantao Shi
- State Key Laboratory
of Fine Chemicals, School of Chemistry, Dalian University of Technology, Dalian, 116024, China
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Svane K, Forse AC, Grey CP, Kieslich G, Cheetham AK, Walsh A, Butler KT. How Strong Is the Hydrogen Bond in Hybrid Perovskites? J Phys Chem Lett 2017; 8:6154-6159. [PMID: 29216715 PMCID: PMC5765532 DOI: 10.1021/acs.jpclett.7b03106] [Citation(s) in RCA: 84] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Hybrid organic-inorganic perovskites represent a special class of metal-organic framework where a molecular cation is encased in an anionic cage. The molecule-cage interaction influences phase stability, phase transformations, and the molecular dynamics. We examine the hydrogen bonding in four AmBX3 formate perovskites: [Am]Zn(HCOO)3, with Am+ = hydrazinium (NH2NH3+), guanidinium (C(NH2)3+), dimethylammonium (CH3)2NH2+, and azetidinium (CH2)3NH2+. We develop a scheme to quantify the strength of hydrogen bonding in these systems from first-principles, which separates the electrostatic interactions between the amine (Am+) and the BX3- cage. The hydrogen-bonding strengths of formate perovskites range from 0.36 to 1.40 eV/cation (8-32 kcalmol-1). Complementary solid-state nuclear magnetic resonance spectroscopy confirms that strong hydrogen bonding hinders cation mobility. Application of the procedure to hybrid lead halide perovskites (X = Cl, Br, I, Am+ = CH3NH3+, CH(NH2)2+) shows that these compounds have significantly weaker hydrogen-bonding energies of 0.09 to 0.27 eV/cation (2-6 kcalmol-1), correlating with lower order-disorder transition temperatures.
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Affiliation(s)
- Katrine
L. Svane
- Department
of Chemistry, University of Bath, Bath BA2 7AY, United Kingdom
| | - Alexander C. Forse
- Department
of Chemistry, Cambridge University, Cambridge CB2 1EW, United Kingdom
| | - Clare P. Grey
- Department
of Chemistry, Cambridge University, Cambridge CB2 1EW, United Kingdom
| | - Gregor Kieslich
- Department
of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Anthony K. Cheetham
- Department
of Materials Science and Metallurgy, University
of Cambridge, Cambridge CB3 0FS, United Kingdom
| | - Aron Walsh
- Department
of Materials, Imperial College London, Exhibition Road, London SW7 2AZ, United Kingdom
- Department
of Materials Science and Engineering, Yonsei
University, Seoul 03722, Korea
| | - Keith T. Butler
- Department
of Chemistry, University of Bath, Bath BA2 7AY, United Kingdom
- E-mail:
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43
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CH3NH3Cl Assisted Solvent Engineering for Highly Crystallized and Large Grain Size Mixed-Composition (FAPbI3)0.85(MAPbBr3)0.15 Perovskites. CRYSTALS 2017. [DOI: 10.3390/cryst7090272] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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44
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Li D, Shi J, Xu Y, Luo Y, Wu H, Meng Q. Inorganic–organic halide perovskites for new photovoltaic technology. Natl Sci Rev 2017. [DOI: 10.1093/nsr/nwx100] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Dongmei Li
- Key Laboratory for Renewable Energy (CAS), Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiangjian Shi
- Key Laboratory for Renewable Energy (CAS), Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yuzhuan Xu
- Key Laboratory for Renewable Energy (CAS), Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanhong Luo
- Key Laboratory for Renewable Energy (CAS), Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Huijue Wu
- Key Laboratory for Renewable Energy (CAS), Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Qingbo Meng
- Key Laboratory for Renewable Energy (CAS), Beijing Key Laboratory for New Energy Materials and Devices, Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
- School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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46
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Ganose AM, Savory CN, Scanlon DO. Beyond methylammonium lead iodide: prospects for the emergent field of ns 2 containing solar absorbers. Chem Commun (Camb) 2017; 53:20-44. [PMID: 27722664 DOI: 10.1039/c6cc06475b] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The field of photovoltaics is undergoing a surge of interest following the recent discovery of the lead hybrid perovskites as a remarkably efficient class of solar absorber. Of these, methylammonium lead iodide (MAPI) has garnered significant attention due to its record breaking efficiencies, however, there are growing concerns surrounding its long-term stability. Many of the excellent properties seen in hybrid perovskites are thought to derive from the 6s2 electronic configuration of lead, a configuration seen in a range of post-transition metal compounds. In this review we look beyond MAPI to other ns2 solar absorbers, with the aim of identifying those materials likely to achieve high efficiencies. The ideal properties essential to produce highly efficient solar cells are discussed and used as a framework to assess the broad range of compounds this field encompasses. Bringing together the lessons learned from this wide-ranging collection of materials will be essential as attention turns toward producing the next generation of solar absorbers.
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Affiliation(s)
- Alex M Ganose
- University College London, Kathleen Lonsdale Materials Chemistry, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ, UK. and Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - Christopher N Savory
- University College London, Kathleen Lonsdale Materials Chemistry, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ, UK.
| | - David O Scanlon
- University College London, Kathleen Lonsdale Materials Chemistry, Department of Chemistry, 20 Gordon Street, London WC1H 0AJ, UK. and Diamond Light Source Ltd., Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
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47
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Tang G, Yang C, Stroppa A, Fang D, Hong J. Revealing the role of thiocyanate anion in layered hybrid halide perovskite (CH3NH3)2Pb(SCN)2I2. J Chem Phys 2017; 146:224702. [DOI: 10.1063/1.4984615] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Gang Tang
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Chao Yang
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
| | - Alessandro Stroppa
- Consiglio Nazionale delle Ricerche—CNR-SPIN, I-67100 L’Aquila, Italy
- International Centre for Quantum and Molecular Structures and Physics Department, Shanghai University, Shanghai 200444, China
| | - Daining Fang
- Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China
| | - Jiawang Hong
- School of Aerospace Engineering, Beijing Institute of Technology, Beijing 100081, China
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48
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Chaudhary B, Kulkarni A, Jena AK, Ikegami M, Udagawa Y, Kunugita H, Ema K, Miyasaka T. Poly(4-Vinylpyridine)-Based Interfacial Passivation to Enhance Voltage and Moisture Stability of Lead Halide Perovskite Solar Cells. CHEMSUSCHEM 2017; 10:2473-2479. [PMID: 28371487 DOI: 10.1002/cssc.201700271] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2017] [Revised: 03/06/2017] [Indexed: 05/14/2023]
Abstract
It is well known that the surface trap states and electronic disorders in the solution-processed CH3 NH3 PbI3 perovskite film affect the solar cell performance significantly and moisture sensitivity of photoactive perovskite material limits its practical applications. Herein, we show the surface modification of a perovskite film with a solution-processable hydrophobic polymer (poly(4-vinylpyridine), PVP), which passivates the undercoordinated lead (Pb) atoms (on the surface of perovskite) by its pyridine Lewis base side chains and thereby eliminates surface-trap states and non-radiative recombination. Moreover, it acts as an electron barrier between the perovskite and hole-transport layer (HTL) to reduce interfacial charge recombination, which led to improvement in open-circuit voltage (Voc ) by 120 to 160 mV whereas the standard cell fabricated in same conditions showed Voc as low as 0.9 V owing to dominating interfacial recombination processes. Consequently, the power conversion efficiency (PCE) increased by 3 to 5 % in the polymer-modified devices (PCE=15 %) with Voc more than 1.05 V and hysteresis-less J-V curves. Advantageously, hydrophobicity of the polymer chain was found to protect the perovskite surface from moisture and improved stability of the non-encapsulated cells, which retained their device performance up to 30 days of exposure to open atmosphere (50 % humidity).
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Affiliation(s)
- Bhumika Chaudhary
- Graduate School of Engineering, Toin University of Yokohama, 1614 Kuroganecho, Aoba, Yokohama, 225-8503, Japan
| | - Ashish Kulkarni
- Graduate School of Engineering, Toin University of Yokohama, 1614 Kuroganecho, Aoba, Yokohama, 225-8503, Japan
| | - Ajay Kumar Jena
- Graduate School of Engineering, Toin University of Yokohama, 1614 Kuroganecho, Aoba, Yokohama, 225-8503, Japan
| | - Masashi Ikegami
- Graduate School of Engineering, Toin University of Yokohama, 1614 Kuroganecho, Aoba, Yokohama, 225-8503, Japan
| | - Yosuke Udagawa
- Department of Physics, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo, 102-8554, Japan
| | - Hideyuki Kunugita
- Department of Physics, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo, 102-8554, Japan
| | - Kazuhiro Ema
- Department of Physics, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo, 102-8554, Japan
| | - Tsutomu Miyasaka
- Graduate School of Engineering, Toin University of Yokohama, 1614 Kuroganecho, Aoba, Yokohama, 225-8503, Japan
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49
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Sun Y, Peng J, Chen Y, Yao Y, Liang Z. Triple-cation mixed-halide perovskites: towards efficient, annealing-free and air-stable solar cells enabled by Pb(SCN) 2 additive. Sci Rep 2017; 7:46193. [PMID: 28383061 PMCID: PMC5382775 DOI: 10.1038/srep46193] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 03/10/2017] [Indexed: 11/17/2022] Open
Abstract
Organo-metal halide perovskites have suffered undesirably from structural and thermal instabilities. Moreover, thermal annealing is often indispensable to the crystallization of perovskites and removal of residual solvents, which is unsuitable for scalable fabrication of flexible solar modules. Herein, we demonstrate the non-thermal annealing fabrication of a novel type of air-stable triple-cation mixed-halide perovskites, FA0.7MA0.2Cs0.1Pb(I5/6Br1/6)3 (FMC) by incorporation of Pb(SCN)2 additive. It is found that adding Pb(SCN)2 functions the same as thermal annealing process by not only improving the crystallinity and optical absorption of perovskites, but also hindering the formation of morphological defects and non-radiative recombination. Furthermore, such Pb(SCN)2-treated FMC unannealed films present micrometer-sized crystal grains and remarkably high moisture stability. Planar solar cells built upon these unannealed films exhibit a high PCE of 14.09% with significantly suppressed hysteresis phenomenon compared to those of thermal annealing. The corresponding room-temperature fabricated flexible solar cell shows an impressive PCE of 10.55%. This work offers a new avenue to low-temperature fabrication of air-stable, flexible and high-efficiency perovskite solar cells.
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Affiliation(s)
- Yong Sun
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Jiajun Peng
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Yani Chen
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Yingshan Yao
- Department of Materials Science, Fudan University, Shanghai 200433, China
| | - Ziqi Liang
- Department of Materials Science, Fudan University, Shanghai 200433, China
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50
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Chiang YH, Li MH, Cheng HM, Shen PS, Chen P. Mixed Cation Thiocyanate-Based Pseudohalide Perovskite Solar Cells with High Efficiency and Stability. ACS APPLIED MATERIALS & INTERFACES 2017; 9:2403-2409. [PMID: 28033466 DOI: 10.1021/acsami.6b13206] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Novel organic-inorganic hybrid perovskite compounds composed of mixed A-site cation (Formamidinium and Cesium) and pseudohalides (SCN and I) ions are successfully synthesized. These new classes of hybrid perovskites photovoltaics exhibited remarkable power conversion efficiency of more than 16% with excellent stability against moisture in ambient environment and under low-light storage condition. The existence of SCN- ion inclusion is confirmed by secondary ion mass spectrometry and Fourier transform infrared spectroscopy. The SCN--doped pseudohalide is advantageous for the formation of large perovskite grains, as well as the performance and stability of the device.
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Affiliation(s)
- Yu-Hsien Chiang
- Department of Photonics, ‡Research Center for Energy Technology and Strategy (RCETS), and §Advanced Optoelectronics Technology Center (AOCT), National Cheng Kung University , Tainan 701, Taiwan
| | - Ming-Hsien Li
- Department of Photonics, ‡Research Center for Energy Technology and Strategy (RCETS), and §Advanced Optoelectronics Technology Center (AOCT), National Cheng Kung University , Tainan 701, Taiwan
| | - Hsin-Min Cheng
- Department of Photonics, ‡Research Center for Energy Technology and Strategy (RCETS), and §Advanced Optoelectronics Technology Center (AOCT), National Cheng Kung University , Tainan 701, Taiwan
| | - Po-Shen Shen
- Department of Photonics, ‡Research Center for Energy Technology and Strategy (RCETS), and §Advanced Optoelectronics Technology Center (AOCT), National Cheng Kung University , Tainan 701, Taiwan
| | - Peter Chen
- Department of Photonics, ‡Research Center for Energy Technology and Strategy (RCETS), and §Advanced Optoelectronics Technology Center (AOCT), National Cheng Kung University , Tainan 701, Taiwan
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