摘要
The flat band potentials and carrier densities of spin coated and sprayed MAPbI3, FA0.85Cs0.15PbI3, and MAPbBr3 perovskite films were determined using the Mott-Schottky relation. The films developed a space charge layer and exhibited p-type conduction with a carrier concentration of ∼1016 cm−3 for spin coated films. Electrochemical impedance spectra showed typical space charge impedance at frequencies >1 kHz, and an exceptional high capacitance at frequency <1 kHz owing to an ion diffusion component.
源语言 | 英语 |
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页(从-至) | 2467-2470 |
页数 | 4 |
期刊 | Chemical Communications |
卷 | 53 |
期 | 16 |
DOI | |
出版状态 | 已出版 - 2017 |
已对外发布 | 是 |