title: Selenium-Doped Black Phosphorus for High-Responsivity 2D Photodetectors.
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-1and 2993%, respectively.
authors.affiliation: i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, Jiangsu, P. R. China.
authors.forename: Yijun
authors.initials: Y
authors.lastname: Xu
authors.affiliation: i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, Jiangsu, P. R. China.|Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China.
authors.forename: Jian
authors.initials: J
authors.lastname: Yuan
authors.affiliation: Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, P. R. China.
authors.forename: Linfeng
authors.initials: L
authors.lastname: Fei
authors.affiliation: i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, Jiangsu, P. R. China.
authors.forename: Xinliang
authors.initials: X
authors.lastname: Wang
authors.affiliation: Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, P. R. China.
authors.forename: Qiaoliang
authors.initials: Q
authors.lastname: Bao
authors.affiliation: School of Materials Science and Engineering, Nanchang University, Nanchang, 330031, Jiangxi, P. R. China.
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.affiliation: i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, Jiangsu, P. R. China. kzhang2015@sinano.ac.cn.
authors.forename: Kai
authors.initials: K
authors.lastname: Zhang
authors.affiliation: i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, 398 Ruoshui Road, Suzhou, 215123, Jiangsu, P. R. China. ygzhang2012@sinano.ac.cn, yuegang.zhang@tsinghua.edu.cn.|Department of Physics, Tsinghua University, Beijing, 100084, P. R. China. ygzhang2012@sinano.ac.cn, yuegang.zhang@tsinghua.edu.cn.
authors.forename: Yuegang
authors.initials: Y
authors.lastname: Zhang
keywords: black phosphorous; dope; growth; photodetectors; responsivity