Wide spectrum responsivity detectors from visible to mid-infrared based on antimonide

被引：4

作者：

Guo, Chunyan ^{[1
,2
,4
]}

Sun, Yaoyao ^{[3
,4
]}

Jia, Qingxuan ^{[3
,4
]}

Jiang, Zhi ^{[3
,4
]}

Jiang, Dongwei ^{[3
,4
]}

Wang, Guowei ^{[3
,4
]}

Xu, Yingqiang ^{[3
,4
]}

Wang, Tao ^{[1
]}

Tian, Jinshou ^{[1
]}

Wu, Zhaoxin ^{[2
]}

Niu, Zhichuan ^{[3
,4
]}

机构：

[1] Chinese Acad Sci, Key Lab Ultra Fast Photoelect Diagnost Technol, Xian Inst Opt & Precis Mech, Xian 710119, Shaanxi, Peoples R China

[2] Xi An Jiao Tong Univ, Xian 710049, Shaanxi, Peoples R China

[3] Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China

[4] Univ Chinese Acad Sci, Coll Mat Sci & Optoelect Technol, Beijing 100049, Peoples R China

来源：

INFRARED PHYSICS & TECHNOLOGY | 2019年 / 96卷

关键词：

Wide spectrum infrared detector; InAs/GaSb type-II superlattices (T2SLs); Photon traps (PTs) array; INFRARED DETECTION; HIGH-PERFORMANCE; PHOTODETECTORS; SUPERLATTICES;

D O I：

10.1016/j.infrared.2018.10.037

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A kind of wide spectrum Infrared detectors based on InAs/GaSb type-II superlattices (T2SLs) operating from 0.5 mu m to 5 mu m wavelength range is reported. The materials were grown by Molecular Beam Epitaxy (MBE) on GaSb substrates. Diverse types and sizes microstructure are fabricated on the surface of the detector to form the photon traps (PTs) array. PTs decrease the reflectivity and increase the light absorption of epitaxial material. Compared with the planar mesa detectors without antireflection (AR) film, detectors with PTs array exhibits a high responsivity of 0.86 A/W at 1160 nm and maximum D-star reaches to 10(9) cm Hz(1/2)/W in visible wavelength. Also, the PTs processed on detector augment spectral response and QE in infrared wavelength. The peak responsivity of the detector with PTs is to 1.35 A/W and QE can exceed to 0.76 in the infrared wavelength. The infrared detector with PTs is attractive for numerous applications.

引用

页码：1 / 6

页数：6

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