High-performance solar-blind photodetector with graphene and nitrogen-doped reduced graphene oxide quantum dots (rGOQDs)

doi:10.1166/mex.2018.1410

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 微纳制造与系统集成研究中心

	High-performance solar-blind photodetector with graphene and nitrogen-doped reduced graphene oxide quantum dots (rGOQDs)
	Zhang, Enliang 1,2; Sun, Tai2 ; Ge, Bangtong 2; Zhang, Weiguo2 ; Gao, Xuan2 ; Jiang, Hao2 ; Li, Zhancheng2 ; Liu, Guojun 1; Shen, Jun2
刊名	MATERIALS EXPRESS
	2018-02-01
卷号	8 期号:1 页码:105-111
关键词	rGOQDs Graphene Photodetector UV Capping Layer
ISSN号	2158-5849
DOI	10.1166/mex.2018.1410
英文摘要	Hybrid photodetector of graphene and reduced graphene oxide quantum dots (rGOQDs) is promising for deep-UV photodetection. However, these photodetectors are usually suffered from long response time and vacuum-required measurement environment. In this study, nitrogen-doped rGOQDs were synthesized by the improved Hummers method and DMF hydrothermal treatment approach, while DMF was used as a reducing reagent to enhance the photoresponse of rGOQDs. Hybrid photodetector with rGOQDs on graphene was fabricated using Al2O3, as capping layer. High photoresponsivity of 2.1 x 10(6) V/W and response time of 0.13 s were obtained at deep-UV under ambient environment, and enhanced photoresponse was observed in solar-blind wavelength compared to normal UV light. Furthermore, the integration of rGOQDs made a great improvement for graphene transistor characteristics, with a 5-fold mobility improvement and a shift of Dirac point of 50 V. This paper provide a feasible way for the fabrication of solar-blind photodetectors with high responsivity, fast response time and ambient condition performance, which are important for the community of photodetection.
资助项目	Fundamental and Advanced Research Project (Key Program) of ChongQing Municipality[cstc2015jcyjBX0046] ; National Natural Science Foundation of China (NSFC)[11574308] ; National Natural Science Foundation of China (NSFC)[61705229] ; National Natural Science Foundation of China (NSFC)[51402291] ; CAS Western Light Program ; Basic Scientific Research Program of Chongqing Science and Technology Commission[Cstc2016jcyjA0314] ; Hundred-Talent Program of Chinese Academy of Sciences
WOS研究方向	Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER SCIENTIFIC PUBLISHERS
WOS记录号	WOS:000428765000010
内容类型	期刊论文
源URL	[http://119.78.100.138/handle/2HOD01W0/6283]
专题	微纳制造与系统集成研究中心
通讯作者	Liu, Guojun; Shen, Jun
作者单位	1.Changchun Univ Sci & Technol, Sch OptoElect Engn, Changchun 130022, Jilin, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Enliang,Sun, Tai,Ge, Bangtong,et al. High-performance solar-blind photodetector with graphene and nitrogen-doped reduced graphene oxide quantum dots (rGOQDs)[J]. MATERIALS EXPRESS,2018,8(1):105-111.
APA	Zhang, Enliang.,Sun, Tai.,Ge, Bangtong.,Zhang, Weiguo.,Gao, Xuan.,...&Shen, Jun.(2018).High-performance solar-blind photodetector with graphene and nitrogen-doped reduced graphene oxide quantum dots (rGOQDs).MATERIALS EXPRESS,8(1),105-111.
MLA	Zhang, Enliang,et al."High-performance solar-blind photodetector with graphene and nitrogen-doped reduced graphene oxide quantum dots (rGOQDs)".MATERIALS EXPRESS 8.1(2018):105-111.