High responsivity, fast ultraviolet photodetector fabricated from ZnO nanoparticle-graphene core-shell structures
Dali Shao1, Mingpeng Yu, Hongtao Sun
1Department of Electrical, Computer and Systems Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA. shaod@rpi.edu
Abstract:
We report a simple, efficient and versatile method for assembling metal oxide nanomaterial-graphene core-shell structures. An ultraviolet photodetector fabricated from the ZnO nanoparticle-graphene core-shell structures showed high responsivity and fast transient response, which are attributed to the improved carrier transport efficiency arising from graphene encapsulation.
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