An Infrared Photoinverter With a GeSe 2-D/PbSe Heterostructure and its Application in Spectroscopy Detectors

被引：4

作者：

Liu, Xiang ^{[1
,2
]}

Lin, Hai-Xin ^{[1
]}

Hang, Zi-Ye ^{[1
]}

Tang, Zhen-Wu ^{[1
]}

Liu, Zhaohai ^{[1
]}

Sun, Jun ^{[3
]}

Chang, Jianhua ^{[1
]}

Tao, Zhi ^{[1
]}

机构：

[1] Nanjing Univ Informat Sci & Technol, Network Technol Engn Ctr, Jiangsu Key Lab Meteorol Sensing, Nanjing 210044, Peoples R China

[2] Suzhou Jiezhun Intelligent Technol Res & Dev Co L, Suzhou 215123, Peoples R China

[3] Jiangsu Univ, Sch Elect & Informat Engn, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

IEEE ELECTRON DEVICE LETTERS | 2022年 / 43卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Heterostructure; photoinverter; gas identification; laser spectral device; HIGH-SENSITIVITY; PHOTOTRANSISTOR;

D O I：

10.1109/LED.2022.3179566

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, an infrared photoinverter with a GeSe 2-D/alpha-PbSe heterostructure and a high detectivity (5.8 x 10(14) Jones) and responsivity (1.26 x 10(6) V/W) has been proposed for applications in spectroscopy detectors and quick chemical gas identification. The design concept is based on three criteria: 1) an enhanced heterostructure constructed from a GeSe 2-D nanomaterial with PbSe and an abrupt PN junction; 2) a photoinverting device that can conveniently perform I-V conversion; and 3) a compatible sensing unit that includes a spectral ppb-level trace gas sensing module. Our work, which used a tunable DFB (Distributed Feedback) laser and retained high spectral sensitivity (1550-1750 nm), presents a novel technical method that meets the various requirements for cost-effective trace gas detection in the infrared region.

引用

页码：1085 / 1088

页数：4

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