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• W2777197086 endingPage "1700662" @default.
• W2777197086 startingPage "1700662" @default.
• W2777197086 abstract "Solar cells based on methylammonium lead triiodide (MAPbI3) have shown remarkable progress in recent years and have demonstrated efficiencies greater than 20%. However, the long-term stability of MAPbI3-based solar cells has yet to be achieved. Besides the well-known chemical and thermal instabilities, significant native ion migration in lead halide perovskites leads to current-voltage hysteresis and photoinduced phase segregation. Recently, it is further revealed that, despite having excellent chemical stability, the Au electrode can cause serious solar cell degradation due to Au diffusion into MAPbI3. In addition to Au, many other metals have been used as electrodes in MAPbI3 solar cells. However, how the external metal impurities introduced by electrodes affect the long-term stability of MAPbI3 solar cells has rarely been studied. A comprehensive study of formation energetics and diffusion dynamics of a number of noble and transition metal impurities (Au, Ag, Cu, Cr, Mo, W, Co, Ni, Pd) in MAPbI3 based on first-principles calculations is reported herein. The results uncover important general trends of impurity formation and diffusion in MAPbI3 and provide useful guidance for identifying the optimal metal electrodes that do not introduce electrically active impurity defects in MAPbI3 while having low resistivities and suitable work functions for carrier extraction." @default.
• W2777197086 created "2018-01-05" @default.
• W2777197086 creator A5010797543 @default.
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• W2777197086 creator A5063154761 @default.
• W2777197086 date "2017-12-27" @default.
• W2777197086 modified "2023-10-18" @default.
• W2777197086 title "Formation and Diffusion of Metal Impurities in Perovskite Solar Cell Material CH ₃ NH ₃ PbI ₃ : Implications on Solar Cell Degradation and Choice of Electrode" @default.
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• W2777197086 doi "https://doi.org/10.1002/advs.201700662" @default.
• W2777197086 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/5827569" @default.
• W2777197086 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/29610728" @default.
• W2777197086 hasPublicationYear "2017" @default.
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