红外与毫米波学报2024，Vol.43Issue(3)：316-323,8.DOI:10.11972/j.issn.1001-9014.2024.03.004
基于InSe/MoTe2异质结构的超灵敏宽光谱光电探测器
Ultrasensitive and broad-spectrum photodetectors based on InSe/MoTe2 heterostructure
摘要
Abstract
The photogating effect based on the vertical structure of a two-dimensional material allows high-sensi-tivity and broad-spectrum photodetector.A high-sensitivity photodetector based on the vertical heterostructure of indium selenide(InSe)/molybdenum ditelluride(MoTe2)is reported,which exhibits excellent broad-spectrum de-tection capability from 365 to 965 nm.The top layer of InSe was used as the grating layer to regulate the channel current,and MoTe2 was used as the transmission layer.By combining the advantages of the two materials,the photodetector has a fast response time of 21.6 ms and achieves a maximum detectivity of 1.05×1013 Jones under 365 nm laser irradiation.Under the illumination of 965 nm,the detectivity still achieves the order of 109 Jones.In addition,the InSe/MoTe2 heterostructure exhibits an external quantum efficiency of 1.03×105%,demonstrating strong photoelectric conversion capability.关键词
二维材料/宽带光电探测器/光栅效应/超灵敏Key words
two-dimensional material/broadband photodetectors/photogating effect/ultrasensitive分类
信息技术与安全科学引用本文复制引用
邢艳辉,吕伟明,曾中明,贺雯馨,韩梓硕,关宝璐,马海鑫,马晓辉,韩军,时文华,张宝顺..基于InSe/MoTe2异质结构的超灵敏宽光谱光电探测器[J].红外与毫米波学报,2024,43(3):316-323,8.基金项目
Supported by the National Natural Science Foundation of China(60908012,61575008,61775007,61874145,62074011,62134008) （60908012,61575008,61775007,61874145,62074011,62134008）
National Key Research and Development Program of China(2018YFA0209000,2021YFC2203400,2021YFA1200804) （2018YFA0209000,2021YFC2203400,2021YFA1200804）
the Beijing Natural Science Foun-dation(4172011,4202010)and Beijing Nova Program(Z201100006820096). （4172011,4202010）
