首页 | 本学科首页   官方微博 | 高级检索  
     

基于AsP/MoS2异质结的偏振光电探测器
引用本文:任智慧,钟绵增,杨珏晗,魏钟鸣. 基于AsP/MoS2异质结的偏振光电探测器[J]. 中国光学, 2021, 0(1)
作者姓名:任智慧  钟绵增  杨珏晗  魏钟鸣
作者单位:中国科学院半导体研究所半导体超晶格国家重点实验室;中国科学院大学材料与光电研究中心;中南大学物理与电子学院先进材料超微结构与超快过程研究所
基金项目:国家重点研发计划(No.2017YFA0207500);国家自然科学基金(No.62004193);北京分子科学国家实验室(No.BNLMS201908)。
摘    要:线偏振光的探测能力是评价偏振光电探测器件的重要指标。黑砷磷(AsP)是一种较为稳定的平面内各向异性材料,由于其面内结构各向异性,其对线偏振光较为敏感,在偏振探测领域有着重要的应用潜力。本文介绍了一种基于AsP/MoS2的高度偏振敏感光电探测器。由于AsP各向异性的光吸收、MoS2有效的载流子收集和输运能力以及范德华异质结对暗电流的抑制作用,该光电探测器实现了大于300的电流开关比,0.27 A/W的电流光响应度以及2×10^10 Jones的比探测率。更重要的是,此类光电探测器在638 nm波段实现了高达3.06二向色性比的偏振特性。这些实验结果表明AsP/MoS2异质结构在偏振光电探测领域有着广阔的应用前景。

关 键 词:光电探测器  黑砷磷  异质结  偏振特性

A polarization-sensitive photodetector based on a AsP/MoS2 heterojunction
REN Zhi-hui,ZHONG Mian-zeng,YANG Jue-han,WEI Zhong-ming. A polarization-sensitive photodetector based on a AsP/MoS2 heterojunction[J]. Chinese Optics, 2021, 0(1)
Authors:REN Zhi-hui  ZHONG Mian-zeng  YANG Jue-han  WEI Zhong-ming
Affiliation:(State Key Laboratory of Superlattices and Microstructures,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China;Center of Materials Science and Optoelectronics Engineering,University of Chinese Academy of Sciences,Beijing 100049,China;Hunan Key Laboratory of Super-microstructure and Ultrafast Process,School of Physics and Electronics,Central South University,Changsha 410083,China)
Abstract:The ability to detect linearly polarized light is an important index for evaluating polarized photoelectric detectors.Black arsenic phosphorus(b-AsP)is a relatively stable anisotropic material,and is sensitive to linearly polarized light because of its anisotropy inside its planar structure.The material has important application value in polarization detection.This paper introduces a polarization-sensitive photodetector based on AsP/MoS2.Due to the anisotropic light absorption of AsP,effective carrier collection and strong carrier transport capacity of MoS2,as well as the suppression of dark current by a van der Waals heterojunction,the performance of the photodector shows relatively large on/off ratios.Moreover,the photodector has a current optical responsivity of 0.27 A/W and a detectivity of 2×1010 Jones,and more importantly,achieves a dichroic ratio of up to 3.06 at 638 nm.These experimental results show that AsP/MoS2 heterostructures have broad application prospects in the field of polarized photoelectricity detection.
Keywords:photodetectors  black arsenic phosphorus  heterojunction  polarization characteristics
本文献已被 CNKI 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号