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Broadband Black-Phosphorus Photodetectors with High Responsivity
Mingqiang Huang1, Mingliang Wang1,2, Cheng Chen1
1Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan, 430074, P. R. China.
Advanced Materials (Deerfield Beach, Fla.)
|March 13, 2016
Abstract:
An array of black-phosphorus photodetectors with channel lengths down to 100 nm is fabricated, and temperature-dependent photodetection measurements from 300 K down to 20 K are carried out. The devices show high photoresponse in a broadband spectral range with a record-high photoresponsivity of 4.3 × 10(6) A W(-1) at 300 K for the 100 nm device.

