Controlled Synthesis of GaSe Microbelts for High-Gain Photodetectors Induced by the Electron Trapping Effect
Release time:2020-07-23
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Impact Factor:6.4
DOI number:10.1039/d0tc01120g
Journal:Journal of Materials Chemistry C
Abstract:GaSe microbelts were successfully synthesized using Ga/Ga(2)Se(3)as the precursor mixture, where excess Ga was required to serve as the metal catalyst. Meanwhile, a spontaneously oxidized surface amorphous oxide (GaOx) layer formed, which induced a built-in electric field perpendicular to the surface. Benefiting from this effect, a GaSe microbelt-based photodetector attained a high responsivity of similar to 3866 A W(-1)and a photoconductive gain of up to similar to 1.06 x 10(4). This study sheds light on the controlled synthesis of microstructures and provides a device design concept for high-performance micro/nano optoelectronics.
Co-author:Hui-Nan Zhu, Ming Wang, Jing-Wei Kang, Chao Xie, Li Wang, Lin-Bao Luo
First Author:Chun-Yan Wu
Correspondence Author:Chao Xie, Lin-Bao Luo
Document Type:Article
Volume:8
Issue:16
Page Number:5375-5379
ISSN No.:2050-7526
Translation or Not:no
Date of Publication:2020-04-28
