Graphene-nanowire hybrid structures for high-performance photoconductive devices
- Lee, Hyungwoo; Heo, Kwang; Park, Jaesung; Park, Yongju; Noh, Seunguk; Kim, Kwang S.; Lee, Changhee; Hong, Byung Hee; Jian, Jikang; Hong, Seunghun
- Issue Date
- Journal of Materials Chemistry, Vol.22 No.17, pp.8372-8376
- Graphene-CdS nanowire (NW) hybrid structures with high-speed photoconductivity were developed. The hybrid structure was comprised of CdS NWs which were selectively grown in specific regions on a single-layer graphene sheet. The photoconductive channels based on graphene-CdS NW hybrid structures exhibited much larger photocurrents than graphene-based channels and much faster recovery speed than CdS NW network-based ones. Our graphene-CdS NW structures can be useful because they were much faster than commercial CdS film-based photodetectors and had photocurrents large enough for practical applications.
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