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Selenium-Doped Black Phosphorus for High-Responsivity 2D Photodetectors
Yijun Xu1, Jian Yuan1,2, Linfeng Fei3
1i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, Jiangsu, P. R. China.
Small (Weinheim an Der Bergstrasse, Germany)
|May 21, 2016
Abstract:
Se-doped black phosphorus (BP) crystal, in centimeter scale, is synthesized by a scalable gas-phase growth method under mild conditions. The Se-doped BP exhibits high quality with excellent electrical properties. The Se dope induces over 20-fold enhancement of responsivity (R) for BP-based 2D photodetectors, resulting in a high R and external quantum efficiency of 15.33 A W-1 and 2993%, respectively.
