红外与毫米波学报2017，Vol.36Issue(6)：688-693,6.DOI:10.11972/j.issn.1001-9014.2017.06.009
InAs/GaSb Ⅱ类超晶格长波红外探测器的实时γ辐照效应
Real-time γ irradiation effects on long-wavelength InAs/GaSb Type Ⅱ superlattice infrared detector
摘要
Abstract
In this paper,the γ-irradiation effect on InAs / GaSb Ⅱ superlattice long-wave detectors was studied.The detector has a good anti-radiation performance under the irradiation of 60Co γ-rays as the current-voltage (I-V) characteristics of the devices did not change significantly with the increase of the irradiation dose.Compared with the value before irradiation,the reduction rate of the zero-bias resistance was only 3.4％ under the irradiation dose of 100 krad (Si).By combining the real-time Ⅰ-V curves at different irradiation doses and the evolution of the current with time after the irradiation,the damage and the corresponding mechanism of the γ-irradiation were analyzed.At zero bias as well as small reverse bias,the current is obviously increased after irradiation.The radiation damage is dominated by the transient ionization effect,and the device performance can be recovered in a short time.While at large reverse bias,the main dark current mechanism is the direct tunneling current,leading to a decreased dark current with the increaseof the irradiation dose.The time of the damage recovery is significantly longer than that of the ionization damage,and an annealing may be required.关键词
γ辐照/实时辐照效应/长波红外探测器/InAs/GaSb Ⅱ类超晶格Key words
γ irradiation/real-time effects/long-wave infrared detector/InAs/GaSb superlattice分类
信息技术与安全科学引用本文复制引用
靳川,丁瑞军,何力,许佳佳,黄爱波,徐志成,周易,白治中,王芳芳,陈建新,陈洪雷..InAs/GaSb Ⅱ类超晶格长波红外探测器的实时γ辐照效应[J].红外与毫米波学报,2017,36(6):688-693,6.基金项目
国家自然科学基金项目(61505237,61176082,61290302,61534006),国家重点研发计划项目(2016YFB0402403),上海市自然科学基金项目(15ZR1445600,16ZR1447900) （61505237,61176082,61290302,61534006）
Supported by National Natural Science Foundation of China (61505237,61176082,61290302,61534006),National Key Research and Development Program of China (2016YFB0402403),Shanghai Natural Science Foundation (15ZR1445600,16ZR1447900) （61505237,61176082,61290302,61534006）
