Near-infrared Photodetection Based on Topological Insulator P-N Heterojunction of SnTe/Bi2Se3

Hongbin Zhang,Zelong Song,Dong Li,Yancai Xu,Jian Li,Chengjie Bai,Baoyuan Man

Applied Surface Science（2020）

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摘要

•High-quality topological p-n junction of SnTe/Bi2Se3 was prepared.•Near-infrared photodetector with large photocurrent and fast speed was fabricated.•It provides an platform to investigate energy-band coupling of topological insulator.

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关键词

Topological insulator,Heterostructure,Near-infrared photodetector,Ultrafast response

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