A High-Performance WSe2/h-BN Photodetector using a Triphenylphosphine (PPh3)-Based n-Doping Technique

作者：Jo Seo Hyeon; Kang Dong Ho; Shim Jaewoo; Jeon Jaeho; Jeon Min Hwan; Yoo Gwangwe; Kim Jinok; Lee Jaehyeong; Yeom Geun Young; Lee Sungjoo; Yu Hyun Yong; Choi Changhwan; Park Jin Hong

来源：Advanced Materials, 2016, 28(24): 4824-4831.

DOI：10.1002/adma.201600032

The effects of triphenylphosphine (PPh3)-based n-doping and hexagonal boron nitride (h-BN) insertion on a tungsten diselenide (WSe2) photodetector are systematically studied, and a very high performance WSe2/h-BN heterostucture-based photodetector is demonstrated with a record photoresponsivity (1.27 x 10(6) A W-1) and temporal photoresponse (rise time: 2.8 ms, decay time: 20.8 ms) under 520 nm wavelength and 5 pW power laser illumination.

• 出版日期2016-6-22