期刊
JOURNAL OF MATERIALS CHEMISTRY C
卷 10, 期 38, 页码 14159-14168出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2tc02812c
关键词
-
资金
- Science and Engineering Research Board (SERB), Department of Science and Technology (DST), Government of India [TAR/2020/000241]
- Council of Scientific and Industrial Research (CSIR), Government of India, New Delhi
- Indian Institute of Science, Bangalore, India
- Indian National Science Academy (INSA) senior scientist fellowship
- Indian Institute of Science for providing research assistantship (RAship)
In this study, a p-n heterojunction based on two-dimensional MoS2 and CuO was integrated, achieving self-powered and broadband photodetection at an illumination of 12.5 μW/cm². The device exhibited enhanced photoresponse at a reverse bias of -1.0 V, attributed to the built-in electric voltage and rectifying diode characteristics of the MoS2/CuO heterostructure.
Energy consumption is one of the key challenges that needs to be circumvented to develop high-performance and efficient photodetectors (PDs). In this regard, p-n heterojunctions based on van der Waals materials have attracted widespread research interest for the fabrication of next-generation PDs. Here, we report the integration of two-dimensional n-type MoS2 with p-type CuO to realize a p-n heterojunction. It is interesting to note that the device exhibits self-powered and broadband photodetection with a maximum responsivity and detectivity of 45.67 mA W-1 and 9.71 x 10(11) Jones, respectively, under an illumination of 12.5 mu W cm(-2) light intensity. Moreover, the photoresponse of the device shows three orders of enhancement in the photocurrent at a reverse bias of -1.0 V. The device shows a responsivity and detectivity of 10.03 A W-1 and 1.8 x 10(14) Jones at -1.0 V under the illumination of 12.5 mu W cm(-2) light intensity. This enhanced photoresponse is the result of better charge separation under the influence of built-in electric voltage and rectifying diode characteristics produced by the MoS2/CuO heterostructure device.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据