红外与毫米波学报2022，Vol.41Issue(2)：389-394,6.DOI:10.11972/j.issn.1001-9014.2022.02.003
近表面加工技术制备的高性能Ge:B阻挡杂质带探测器
High performance Ge:B blocked impurity band detector developed using near-surface processing techniques
摘要
Abstract
Blocked impurity band(BIB)detectors are the state-of-the-art choice for far infrared astronomical ob?servation. Ge:B BIB far infrared detector has been successfully developed using near-surface processing tech?niques. The spectral response covers a wide range from 50 cm-1 to 400 cm-1. At a temperature of 3. 5 K and a working voltage of 30 mV,the detector exhibits a highly competitive responsivity of 21. 46 A?W-1 and a highly competitive detectivity of 4. 34×1014 cm?Hz1/2?W-1 at the peak response of 84. 9 cm-1. The influence of the interfa?cial barriers on the spectral response is investigated. A new excitation model that the carriers in the contact regions can be excited over the interfacial barriers is proposed. Moreover,a new method to enhance the relative response intensity of BIB detectors in the low wavenumber region is found.关键词
阻挡杂质带/探测器/界面势垒/激发模式Key words
blocked impurity band/interfacial barrier/excitation model/far infrared分类
信息技术与安全科学引用本文复制引用
潘昌翊,牟浩,姚晓梅,胡桃,王宇,王超,邓惠勇,戴宁..近表面加工技术制备的高性能Ge:B阻挡杂质带探测器[J].红外与毫米波学报,2022,41(2):389-394,6.基金项目
Supported by National Natural Science Foundation of China(11933006),and the Frontier Science Research Project(Key Programs)of the Chinese Academy of Sciences(QYZDJ-SSW-SLH018) （11933006）
