High- and Reproducible-Performance Graphene/II-VI Semiconductor Film Hybrid Photodetectors.

ABSTRACT: High- and reproducible-performance photodetectors are critical to the development of many technologies, which mainly include one-dimensional (1D) nanostructure based and film based photodetectors. The former suffer from a huge performance variation because the performance is quite sensitive to the synthesis microenvironment of 1D nanostructure. Herein, we show that the graphene/semiconductor film hybrid photodetectors not only possess a high performance but also have a reproducible performance. As a demo, the as-produced graphene/ZnS film hybrid photodetector shows a high responsivity of 1.7?×?10(7) A/W and a fast response speed of 50?ms, and shows a highly reproducible performance, in terms of narrow distribution of photocurrent (38-65??A) and response speed (40-60?ms) for 20 devices. Graphene/ZnSe film and graphene/CdSe film hybrid photodetectors fabricated by this method also show a high and reproducible performance. The general method is compatible with the conventional planar process, and would be easily standardized and thus pay a way for the photodetector applications.

SUBMITTER: Huang F 

PROVIDER: S-EPMC4937183 | biostudies-literature | 2016 Jun

REPOSITORIES: biostudies-literature