The Effect of Thermal Annealing on Charge Transport in Organolead Halide Perovskite Microplate Field-Effect Transistors

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• 作者：Dehui Li ; Hung-Chieh Cheng ; Yiliu Wang ; Zipeng Zhao ; Gongming Wang ; Hao Wu ; Qiyuan He ; Yu Huang and Xiangfeng Duan
• 刊名：Advanced Materials
• 出版年：2017
• 出版时间：January 25, 2017
• 年：2017
• 卷：29
• 期：4
• 全文大小：1492K
• ISSN：1521-4095

文摘

Transformation of unipolar n-type semiconductor behavior to ambipolar and finally to unipolar p-type behavior in CH₃NH₃PbI₃ microplate field-effect transistors by thermal annealing is reported. The photoluminescence spectra essentially maintain the same features before and after the thermal annealing process, demonstrating that the charge transport measurement provides a sensitive way to probe low-concentration defects in perovskite materials.