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Light Trapping in Conformal Graphene/Silicon Nanoholes for High-Performance Photodetectors

文献类型：期刊论文

作者Yang, Jun1,2; Tang, Linlong2; Luo, Wei2; Shen, Jun2; Zhou, Dahua2; Feng, Shuanglong2; Wei, Xingzhan2; Shi, Haofei2
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2019-08-21
卷号11期号:33页码:30421-30429
关键词graphene photodetector light trapping silicon nanostructures conformal
ISSN号1944-8244
DOI10.1021/acsami.9b08268
通讯作者Tang, Linlong(tll@cigit.ac.cn) ; Wei, Xingzhan(weixingzhan@cigit.ac.cn)
英文摘要Hybrid graphene/silicon heterojunctions have been widely utilized in photodetectors because of their unique characteristics of high sensitivity, fast response, and CMOS compatibility. However, the photoresponse is restricted by the high reflectance of planar silicon (up to 50%). Herein, an improved graphene/Si detector with excellent light absorption performance is proposed and demonstrated by directly growing graphene on the surface of silicon nanoholes (SiNHs). It is shown that the combination of SiNHs with conformal graphene provides superior interfaces for efficient light trapping and transport of the photoexcited carriers. A high absorption of up to 90% was achieved, and the conformal graphene/SiNH-based photodetectors exhibited a higher photoresponsivity (2720 A/W) and faster response (similar to 6.2 mu s), compared with the counterpart of the planar graphene/Si, for which the corresponding values are 850 A/W and 51.3 mu s. These results showcase the vital role of the material morphology in optoelectronic conversion and pave the way to explore novel high-performance heterojunction photodetectors.
资助项目National Natural Science Foundation of China[NSFC 11574308] ; Basic Science and Frontier Technology Research Program of Chongqing[cstc2016jcyjA0315] ; Basic Science and Frontier Technology Research Program of Chongqing[cstc2017shmsA1471] ; Hundred Talent Program of Chinese Academy of Sciences
WOS研究方向Science & Technology - Other Topics ; Materials Science
语种英语
WOS记录号WOS:000482546000099
出版者AMER CHEMICAL SOC
源URL[http://119.78.100.138/handle/2HOD01W0/9614]  
专题微纳制造与系统集成研究中心
通讯作者Tang, Linlong; Wei, Xingzhan
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Jun,Tang, Linlong,Luo, Wei,et al. Light Trapping in Conformal Graphene/Silicon Nanoholes for High-Performance Photodetectors[J]. ACS APPLIED MATERIALS & INTERFACES,2019,11(33):30421-30429.
APA Yang, Jun.,Tang, Linlong.,Luo, Wei.,Shen, Jun.,Zhou, Dahua.,...&Shi, Haofei.(2019).Light Trapping in Conformal Graphene/Silicon Nanoholes for High-Performance Photodetectors.ACS APPLIED MATERIALS & INTERFACES,11(33),30421-30429.
MLA Yang, Jun,et al."Light Trapping in Conformal Graphene/Silicon Nanoholes for High-Performance Photodetectors".ACS APPLIED MATERIALS & INTERFACES 11.33(2019):30421-30429.

入库方式： OAI收割

来源：重庆绿色智能技术研究院

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