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Organic field-effect transistor-based gas sensors.

Congcong Zhang1, Penglei Chen, Wenping Hu

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Organic field-effect transistors (OFETs) offer versatile sensing capabilities. This review details OFET-based gas sensors, highlighting their working principles, advanced protocols, and sensory arrays for high-performance detection.

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Area of Science:

  • Organic electronics
  • Semiconductor devices
  • Chemical sensing technology

Background:

  • Organic field-effect transistors (OFETs) are crucial in organic electronics.
  • OFETs offer advantages like flexibility, low cost, and solution processability.
  • Their functionalization for external stimuli response is a growing research area.

Purpose of the Study:

  • To review OFET-based gas sensors developed since 2009.
  • To explain the working principles of OFET gas sensors.
  • To introduce advanced gas discrimination systems using OFET arrays.

Main Methods:

  • Detailed discussion of OFET gas sensor working principles.
  • Highlighting state-of-the-art protocols for high-performance gas sensing.
  • Introduction of sensory arrays for advanced gas discrimination.

Main Results:

  • OFETs demonstrate high sensitivity, selectivity, and rapid response for gas sensing.
  • Advanced protocols enhance the performance of OFET-based gas sensors.
  • Sensory arrays enable sophisticated gas discrimination capabilities.

Conclusions:

  • OFET-based gas sensors hold significant potential for portable and reliable detection.
  • Understanding OFET sensor design is key for future high-quality sensor development.
  • This review provides insights for advancing OFET gas sensor technology.