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Title:		Gas Sensors Based on Nano/Microstructured Organic Field-Effect Transistors
Author(s):		Zhang S; Zhao Y; Du X; Chu Y; Zhang S; Huang J;
Address:		"Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China. Putuo District People's Hospital, Tongji University, Shanghai, 200060, P. R. China"
Journal Title:		Small
Year:		2019
Volume:		20190207
Issue:		12
Page Number:		e1805196 -
DOI:		10.1002/smll.201805196
ISSN/ISBN:		1613-6829 (Electronic) 1613-6810 (Linking)
Abstract:		"Benefiting from the advantages of organic field-effect transistors (OFETs), including synthetic versatility of organic molecular design and environmental sensitivity, gas sensors based on OFETs have drawn much attention in recent years. Potential applications focus on the detection of specific gas species such as explosive, toxic gases, or volatile organic compounds (VOCs) that play vital roles in environmental monitoring, industrial manufacturing, smart health care, food security, and national defense. To achieve high sensitivity, selectivity, and ambient stability with rapid response and recovery speed, the regulation and adjustment of the nano/microstructure of the organic semiconductor (OSC) layer has proven to be an effective strategy. Here, the progress of OFET gas sensors with nano/microstructure is selectively presented. Devices based on OSC films one dimensional (1D) single crystal nanowires, nanorods, and nanofibers are introduced. Then, devices based on two dimensional (2D) and ultrathin OSC films, fabricated by methods such as thermal evaporation, dip-coating, spin-coating, and solution-shearing methods are presented, followed by an introduction of porous OFET sensors. Additionally, the applications of nanostructured receptors in OFET sensors are given. Finally, an outlook in view of the current research state is presented and eight further challenges for gas sensors based on OFETs are suggested"
Keywords:		gas sensors nano/microstructure organic field-effect transistors;
Notes:		"PubMed-not-MEDLINEZhang, Shiqi Zhao, Yiwei Du, Xiaowen Chu, Yingli Zhang, Shen Huang, Jia eng Research Support, Non-U.S. Gov't Review Germany 2019/02/08 Small. 2019 Mar; 15(12):e1805196. doi: 10.1002/smll.201805196. Epub 2019 Feb 7"