Enhanced Sensitivity of Gas Sensor Based on Poly(3-hexylthiophene) Thin-Film Transistors for Disease Diagnosis and Environment Monitoring. - Marco Roberto Cavallari; José E. E. Izquierdo; Guilherme S. Braga; Ely A. T. Dirani; Marcelo A. Pereira-da-Silva; Estrella F. G. Rodríguez; Fernando J. Fonseca (Sensors, 2015)