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1064nm RCE探测器光电响应特性分析
Authors
佟存柱
倪海桥
+8 more
吴荣汉
彭红玲
杜云
杨晓红
牛智川
章昊
郑厚植
韩勤
Publication date
1 January 2005
Publisher
Abstract
对1064nm谐振腔增强型(RCE)光电探测器(PD)的光电响应特性进行了分析研究.利用MBE生长技术得到有源区分别为量子阱和量子点的1064nm RCE探测器的外延片,并对制作的探测器进行了各种光电特性测试.结果表明量子阱结构的RCE探测器量子效率峰值达到57%,谱线半宽6~7nm,峰值波长1059nm;而量子点结构的RCE探测器量子效率峰值达到30%,谱线半宽5nm,峰值波长1056nm.通过分析量子效率和吸收系数之间的关系,对两种结构器件的吸收进行了比较,发现虽然量子点探测器的吸收小,但通过合理设计共振腔等方法也可以达到较高的量子效率.两种结构的器件都有很好的I-V特性
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Last time updated on 29/11/2016