Vapor sensing using organic, polymer, and nanomaterial field-effect transistors

Abstract The strong and rational chemical interactions of molecular and polymeric organic semiconductors (OSCs) make the use of organic field-effect transistors (OFETs) compelling for vapor sensors. Gas-phase molecule detection is important for health monitoring and public security. This chapter highlights recent progress in OFET vapor sensors, emphasizing advances from the past 5 years and including aspects of OSC morphology and the role of adjacent dielectrics. In addition, means of designing the OSCs for increased sensitivity and selectivity are presented.