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Gas Dielectric Transistor of CuPc Single Crystalline Nanowire for SO 2 Detection Down to Sub‐ppm Levels at Room Temperature
Author(s) -
Shaymurat Talgar,
Tang Qingxin,
Tong Yanhong,
Dong Lin,
Liu Yichun
Publication year - 2013
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201204509
Subject(s) - materials science , nanowire , dielectric , transistor , field effect transistor , optoelectronics , nanotechnology , field (mathematics) , channel (broadcasting) , adsorption , electrical engineering , computer science , telecommunications , voltage , chemistry , mathematics , organic chemistry , pure mathematics , engineering
A room‐temperature highly‐sensitive SO 2 sensor with fast response and complete recovery is constructed based on gas dielectric field‐effect transistor (FET) of CuPc single crystalline nanowire. The exposed conductive channel by gas dielectric is responsible for the high sensitivity to SO 2 and the adsorption of the SO 2 molecules dramatically enhances the field‐effect mobility. These results not only open up new opportunities to develop new SO 2 sensors, but also provide an efficient way to improve the performance of organic FETs.