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Materials (Basel)

Title:		Organic Thin-Film Transistors as Gas Sensors: A Review
Author(s):		Cavallari MR; Pastrana LM; Sosa CDF; Marquina AMR; Izquierdo JEE; Fonseca FJ; Amorim CA; Paterno LG; Kymissis I;
Address:		"Engenharia de Energia, Universidade Federal da Integracao Latino-Americana, Foz do Iguacu, PR 85866-000, Brazil. Departamento de Engenharia de Sistemas Eletronicos, Escola Politecnica da Universidade de Sao Paulo, Sao Paulo, SP 05508-010, Brazil. Departamento de Engenharia de Biossistemas, Faculdade de Ciencias e Engenharia (Campus de Tupa), Universidade Estadual Paulista Julio de MesquitaFilho (UNESP), Tupa, SP 17602-496, Brazil. Laboratorio de Pesquisa em Polimeros e Nanomateriais, Instituto de Quimica, Universidade de Brasilia, Brasilia, DF 70910-900, Brazil. Department of Electrical Engineering, Columbia University, New York, NY 10027-6902, USA"
Journal Title:		Materials (Basel)
Year:		2020
Volume:		20201222
Issue:		1
Page Number:		-
DOI:		10.3390/ma14010003
ISSN/ISBN:		1996-1944 (Print) 1996-1944 (Electronic) 1996-1944 (Linking)
Abstract:		"Organic thin-film transistors (OTFTs) are miniaturized devices based upon the electronic responses of organic semiconductors. In comparison to their conventional inorganic counterparts, organic semiconductors are cheaper, can undergo reversible doping processes and may have electronic properties chiefly modulated by molecular engineering approaches. More recently, OTFTs have been designed as gas sensor devices, displaying remarkable performance for the detection of important target analytes, such as ammonia, nitrogen dioxide, hydrogen sulfide and volatile organic compounds (VOCs). The present manuscript provides a comprehensive review on the working principle of OTFTs for gas sensing, with concise descriptions of devices' architectures and parameter extraction based upon a constant charge carrier mobility model. Then, it moves on with methods of device fabrication and physicochemical descriptions of the main organic semiconductors recently applied to gas sensors (i.e., since 2015 but emphasizing even more recent results). Finally, it describes the achievements of OTFTs in the detection of important gas pollutants alongside an outlook toward the future of this exciting technology"
Keywords:		flexible electronics gas sensors organic field- effect transistors organic semiconductors organic thin-film transistors;
Notes:		"PubMed-not-MEDLINECavallari, Marco Roberto Pastrana, Loren Mora Sosa, Carlos Daniel Flecha Marquina, Alejandra Maria Rodriguez Izquierdo, Jose Enrique Eirez Fonseca, Fernando Josepetti Amorim, Cleber Alexandre de Paterno, Leonardo Giordano Kymissis, Ioannis eng 88882.333362/2019-01/Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior/ 13/19420-0/Fundaç ã o de Amparo à Pesquisa do Estado de Sã o Paulo/ 13/50440-7/Fundaç ã o de Amparo à Pesquisa do Estado de Sã o Paulo/ 15/08566-9/Fundaç ã o de Amparo à Pesquisa do Estado de Sã o Paulo/ PID2562-2020/Fundacao Araucaria/ PID2563-2020/Fundacao Araucaria/ Review Switzerland 2020/12/31 Materials (Basel). 2020 Dec 22; 14(1):3. doi: 10.3390/ma14010003"