DICP OpenIR
Photo-oxidative degradation of methylammonium lead iodide perovskite: mechanism and protection
Ouyang, Yixin1; Li, Yajuan2; Zhu, Pengchen3; Li, Qiang1; Gao, Yuan3; Tong, Jianyu4; Shi, Li1; Zhou, Qionghua1; Ling, Chongyi1; Chen, Qian1; Deng, Zhengtao4; Tan, Hairen3; Deng, Weiqiao2; Wang, Jinlan1
Corresponding AuthorDeng, Weiqiao(dengwq@dicp.ac.cn) ; Wang, Jinlan(jlwang@seu.edu.cn)
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
2019-02-07
ISSN2050-7488
DOI10.1039/c8ta12193a
Volume7Issue:5Pages:2275-2282
Funding ProjectNational Key R&D Program of China[2017YFA0204800] ; National Natural Science Foundation of China[21525311] ; National Natural Science Foundation of China[21773027] ; National Natural Science Foundation of China[11404056] ; National Natural Science Foundation of China[51502130] ; Jiangsu 333 project[BRA2016353] ; Scientific Research Foundation of Graduate School of Southeast University[YBJJ1772]
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu 333 project ; Jiangsu 333 project ; Scientific Research Foundation of Graduate School of Southeast University ; Scientific Research Foundation of Graduate School of Southeast University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu 333 project ; Jiangsu 333 project ; Scientific Research Foundation of Graduate School of Southeast University ; Scientific Research Foundation of Graduate School of Southeast University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu 333 project ; Jiangsu 333 project ; Scientific Research Foundation of Graduate School of Southeast University ; Scientific Research Foundation of Graduate School of Southeast University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu 333 project ; Jiangsu 333 project ; Scientific Research Foundation of Graduate School of Southeast University ; Scientific Research Foundation of Graduate School of Southeast University
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS KeywordINITIO MOLECULAR-DYNAMICS ; HALIDE PEROVSKITES ; SOLAR-CELLS ; AB-INITIO ; PHOTOVOLTAIC EFFICIENCY ; ELECTRONIC-STRUCTURE ; HIGH-PERFORMANCE ; ENERGY ; OXYGEN ; CH(3)NH(3)PBL(3)
AbstractAlthough the power conversion efficiency of perovskite solar cells has exceeded 23%, the poor ambient stability of organic-inorganic halide perovskites poses a challenge for their commercialization. Comprehensive understanding of the underlying degradation mechanisms is a crucial step to seek approaches that can effectively suppress the degradation of perovskites. Herein, on the basis of extensive first-principles calculations, a three-step photo-oxidative degradation mechanism of MAPbI(3)d at the atomic level is revealed. We find that, in a dry ambient environment, the photo-generated superoxide anions (O-2(-)) first lead to fast surface oxidation. However, further oxidation of the perovskite interior is hindered by the solid oxidation product. The fresh water produced in surface oxidation leads to the hydration of the inner perovskite and eventual breakage of the MAPbI(3) lattice. We devise a practical strategy for protecting MAPbI(3) from photo-induced decomposition by anchoring hydrophobic 2-(4-fluorophenyl)propan-2-amine on the surface of MAPbI(3). The surface modification significantly retards the photo-induced decomposition.
Language英语
Funding OrganizationNational Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu 333 project ; Jiangsu 333 project ; Scientific Research Foundation of Graduate School of Southeast University ; Scientific Research Foundation of Graduate School of Southeast University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu 333 project ; Jiangsu 333 project ; Scientific Research Foundation of Graduate School of Southeast University ; Scientific Research Foundation of Graduate School of Southeast University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu 333 project ; Jiangsu 333 project ; Scientific Research Foundation of Graduate School of Southeast University ; Scientific Research Foundation of Graduate School of Southeast University ; National Key R&D Program of China ; National Key R&D Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Jiangsu 333 project ; Jiangsu 333 project ; Scientific Research Foundation of Graduate School of Southeast University ; Scientific Research Foundation of Graduate School of Southeast University
WOS IDWOS:000457546000035
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/166115
Collection中国科学院大连化学物理研究所
Corresponding AuthorDeng, Weiqiao; Wang, Jinlan
Affiliation1.Southeast Univ, Sch Phys, Nanjing 211189, Jiangsu, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Mol React Dynam, Dalian 116023, Peoples R China
3.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Jiangsu Key Lab Artificial Funct Mat, Natl Lab Solid State Microstruct,Coll Engn & Appl, Nanjing 210093, Jiangsu, Peoples R China
4.Nanjing Univ, Coll Engn & Appl Sci, Collaborat Innovat Ctr Adv Microstruct, Nanjing Natl Lab Microstruct,Dept Biomed Engn, Nanjing 210093, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Ouyang, Yixin,Li, Yajuan,Zhu, Pengchen,et al. Photo-oxidative degradation of methylammonium lead iodide perovskite: mechanism and protection[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(5):2275-2282.
APA Ouyang, Yixin.,Li, Yajuan.,Zhu, Pengchen.,Li, Qiang.,Gao, Yuan.,...&Wang, Jinlan.(2019).Photo-oxidative degradation of methylammonium lead iodide perovskite: mechanism and protection.JOURNAL OF MATERIALS CHEMISTRY A,7(5),2275-2282.
MLA Ouyang, Yixin,et al."Photo-oxidative degradation of methylammonium lead iodide perovskite: mechanism and protection".JOURNAL OF MATERIALS CHEMISTRY A 7.5(2019):2275-2282.
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