Photoelectrochemical-type sunlight photodetector based on MoS2/graphene heterostructure

被引：163

作者：

Huang, Zongyu ^{[1
,2
]}

Han, Weijia ^{[1
,2
]}

Tang, Hongli ^{[2
]}

Ren, Long ^{[2
]}

Chander, D. Sathish ^{[1
]}

Qi, Xiang ^{[1
,2
]}

Zhang, Han ^{[1
]}

机构：

[1] Shenzhen Univ, Minist Educ & Guangdong Prov, Key Lab Optoelect Devices & Syst, Shenzhen 518060, Peoples R China

[2] Xiangtan Univ, Hunan Prov Key Lab Micronano Energy Mat & Device, Xiangtan 411105, Hunan, Peoples R China

来源：

2D MATERIALS | 2015年 / 2卷 / 03期

基金：

中国国家自然科学基金;

关键词：

graphene; molybdenum disulfide; photoresponse; FEW-LAYER MOS2; MOLYBDENUM-DISULFIDE MOS2; DOPED FIBER LASER; HIGH-DETECTIVITY; 2-DIMENSIONAL MATERIALS; SATURABLE ABSORBER; GRAPHENE PHOTONICS; SPECTRAL RESPONSE; PHOTOTRANSISTORS; HETEROJUNCTION;

D O I：

10.1088/2053-1583/2/3/035011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have fabricated a novel sunlight photo-detector based on a MoS2/graphene heterostructure. The MoS2/graphene heterostructure was prepared by a facile hydrothermal method along with a subsequent annealing process followed by a substrate-induced high selective nucleation and growth mechanism. The microstructures and morphologies of the two-dimensional MoS2/graphene heterostructure can be experimentally confirmed by x-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and aUV-vis absorption spectrometer. Photoresponse investigations performed by a photoelectrochemical (PEC) measurement system indicate that the synthesized MoS2/graphene heterostructure shows superior photoresponse activities under the illumination of sunlight in contrast with bare MoS2 and graphene. The improved photoresponsivity can be attributed to the enhanced light absorption, strong light-matter interaction and the extremely efficient charge separation of the heterostructure. The structure and performances of the MoS2/graphene heterostructure suggest promising applications in the field of photonics and optoelectronics.

引用

页数：6

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