会议论文详细信息
Electron Microscopy and Analysis Group Conference 2015 | |
Nanoscale investigation of organic _ inorganic halide perovskites | |
Cacovich, S.^1 ; Divitini, G.^1 ; Vruini, M.^2 ; Sadhanala, A.^2 ; Friend, R.H.^2 ; Sirringhaus, H.^2 ; Deschler, F.^2 ; Ducati, C.^1 | |
Department of Materials Science and Metallurgy, University of Cambridge, 27 Charles Babbage Road, Cambidge | |
CB3 0FS, United Kingdom^1 | |
Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge | |
CB3 0HE, United Kingdom^2 | |
关键词: Chemical inhomogeneities; Crystallinities; Elemental compositions; Nano scale; Optical and electronic properties; Organic-inorganic; Power conversion efficiencies; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/644/1/012024/pdf DOI : 10.1088/1742-6596/644/1/012024 |
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来源: IOP | |
【 摘 要 】
Over the last few years organic - inorganic halide perovskite-based solar cells have exhibited a rapid evolution, reaching certified power conversion efficiencies now surpassing 20%. Nevertheless the understanding of the optical and electronic properties of such systems on the nanoscale is still an open problem. In this work we investigate two model perovskite systems (based on iodine - CH3NH3PbI3and bromine - CH3NH3PbBr3), analysing the local elemental composition and crystallinity and identifying chemical inhomogeneities.
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