Ultra-Broadband Photodetector for the Visible to Terahertz Range by Self-Assembling Reduced Graphene Oxide-Silicon Nanowire Array Heterojunctions

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 photor...

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Bibliographic Details
Published in:Small (Weinheim an der Bergstrasse, Germany) Germany), 2014-06, Vol.10 (12), p.2345-2351
Main Authors: Cao, Yang, Zhu, Jiayi, Xu, Jia, He, Junhui, Sun, Jia-Lin, Wang, Yingxin, Zhao, Ziran
Format: Article
Language:English
Subjects:
Arrays
Graphene
Heat treatment
Heterojunctions
Nanostructure
Nanotechnology
Nanowires
Oxides
photodetector
Photodetectors
reduced graphene oxide
Silicon
silicon nanowires
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Summary: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.
ISSN:1613-6810
1613-6829
DOI:10.1002/smll.201303339