Self‐Powered Gas Sensors: 2D Transition Metal Dichalcogenide Heterostructures for p‐ and n‐Type Photovoltaic Self‐Powered Gas Sensor (Adv. Funct. Mater. 43/2020). (23rd October 2020)

• Record Type: Journal Article
• Authors: Kim, Youngjun; Lee, Sangyoon; Song, Jeong‐Gyu; Ko, Kyung Yong; Woo, Whang Je; Lee, Suk Woo; Park, Minwoo; Lee, Hoonkyung; Lee, Zonghoon; Choi, Hyunyong; Kim, Woo‐Hee; Park, Jusang; Kim, Hyungjun
• Is Part Of: Advanced functional materials. Volume 30:Number 43(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-10-23
• Subjects: gas sensors -- heterostructures -- photovoltaics -- self‐powered sensors -- transition metal dichalcogenide; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.202070284
• Languages: English
• ISSNs: 1616-301X

Abstract

Abstract : In article number 2003360, Woo‐Hee Kim, Jusang Park, Hyungjun Kim, and co‐workers demonstrate a photovoltaic self‐powered gas sensor using a two‐dimensional (2D) transition metal dichalcogenide (TMD) heterostructure for the first time. The p‐ (WSe2 /WS2 ) and n‐type (MoS2 /WSe2 ) gas sensors exhibit highly sensitive, selective gas sensing properties to NO2 and NH3 gas without external bias due to their photovoltaic features. Further, this study contributes toward revealing the gas sensing mechanism in the 2D TMD heterostructure.