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Self‐Powered Gas Sensors: 2D Transition Metal Dichalcogenide Heterostructures for p‐ and n‐Type Photovoltaic Self‐Powered Gas Sensor (Adv. Funct. Mater. 43/2020)
Author(s) -
Kim Youngjun,
Lee Sangyoon,
Song JeongGyu,
Ko Kyung Yong,
Woo Whang Je,
Lee Suk Woo,
Park Minwoo,
Lee Hoonkyung,
Lee Zonghoon,
Choi Hyunyong,
Kim WooHee,
Park Jusang,
Kim Hyungjun
Publication year - 2020
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.202070284
Subject(s) - heterojunction , materials science , photovoltaic system , transition metal , optoelectronics , nanotechnology , photovoltaic effect , electrical engineering , catalysis , chemistry , engineering , biochemistry
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‐ (WSe 2 /WS 2 ) and n‐type (MoS 2 /WSe 2 ) gas sensors exhibit highly sensitive, selective gas sensing properties to NO 2 and NH 3 gas without external bias due to their photovoltaic features. Further, this study contributes toward revealing the gas sensing mechanism in the 2D TMD heterostructure.