title: The Effect of Thermal Annealing on Charge Transport in Organolead Halide Perovskite Microplate Field-Effect Transistors.
abstract: Transformation of unipolar n-type semiconductor behavior to ambipolar and finally to unipolar p-type behavior in CH3NH3PbI3microplate 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.
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA.
authors.forename: Dehui
authors.initials: D
authors.lastname: Li
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA.
authors.forename: Hung-Chieh
authors.initials: HC
authors.lastname: Cheng
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA.
authors.forename: Yiliu
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA.
authors.forename: Zipeng
authors.initials: Z
authors.lastname: Zhao
authors.affiliation: Department of Chemistry and Biochemistry and California Nanosystems Institute, University of California, Los Angeles, CA, 90095, USA.
authors.forename: Gongming
authors.initials: G
authors.lastname: Wang
authors.affiliation: Department of Materials Science and Engineering, University of California, Los Angeles, CA, 90095, USA.
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095, USA.
authors.forename: Qiyuan
authors.initials: Q
authors.lastname: He
authors.affiliation: Department of Materials Science and Engineering and California Nanosystems Institute, University of California, Los Angeles, CA, 90095, USA.
authors.forename: Yu
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Department of Chemistry and Biochemistry and California Nanosystems Institute, University of California, Los Angeles, CA, 90095, USA.
authors.forename: Xiangfeng
authors.initials: X
authors.lastname: Duan
keywords: graphene contact; perovskite microplate transistors; thermal annealing