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Ultra‐Broadband Photodetector for the Visible to Terahertz Range by Self‐Assembling Reduced Graphene Oxide‐Silicon Nanowire Array Heterojunctions
Author(s) -
Cao Yang,
Zhu Jiayi,
Xu Jia,
He Junhui,
Sun JiaLin,
Wang Yingxin,
Zhao Ziran
Publication year - 2014
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201303339
Subject(s) - graphene , materials science , photodetector , heterojunction , optoelectronics , terahertz radiation , oxide , nanowire , infrared , silicon , broadband , nanotechnology , optics , physics , metallurgy
Advantages of reduced graphene oxide (RGO) and Si nanowire (SiNW) array are integrated into a single photodetector by simple drop‐casting of the suspension of graphene oxide (GO) nanosheets on top of the SiNW array followed by heat‐treatment. The RGO‐SiNW array heterojunction photodetector is photoresponsive to the visible, near‐infrared, mid‐infrared, and terahertz wave irradiations at room temperature.