摘要
A modified Butler-Volmer model is developed to predict the potential of perfect stoichiometry (PPS) for electrodeposition. CdTe thin films are deposited in an acidic solution; their electrodeposition mechanism is investigated using cyclic voltammetry. Calculated and experimental PPS values exhibit good agreement. At PPS, well-connected granular CdTe thin films can be deposited; these are predicted to be intrinsic, and slightly p-type due to cadmium vacancies. Type conversion occurs only because of defect redistribution and local defect reactions after annealing; the converted n-type layer exhibits lower resistivity and higher mobility. A film annealed at 350 °C exhibits excellent crystallization.
原文 | 英語 |
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頁(從 - 到) | 4197-4202 |
頁數 | 6 |
期刊 | Thin Solid Films |
卷 | 518 |
發行號 | 15 |
DOIs | |
出版狀態 | 已出版 - 31 05 2010 |
對外發佈 | 是 |