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Updated: Jan 29, 2026
08:43
Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
Published on: November 7, 2016
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Gas Sensors Based on Nano/Microstructured Organic Field-Effect Transistors
Shiqi Zhang1, Yiwei Zhao1, Xiaowen Du1
1Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Tongji University, Shanghai, 201804, P. R. China.
Small (Weinheim an Der Bergstrasse, Germany)
|February 8, 2019
Summary
Organic field-effect transistor (OFET) gas sensors offer high sensitivity and selectivity. Adjusting the organic semiconductor (OSC) layer
Area of Science:
- Materials Science
- Chemical Sensors
- Organic Electronics
Background:
- Organic field-effect transistors (OFETs) offer synthetic versatility and environmental sensitivity, making them promising for gas sensing applications.
- Applications include detecting explosives, toxic gases, and volatile organic compounds (VOCs) crucial for environmental monitoring, healthcare, and security.
Purpose of the Study:
- To review the progress of OFET gas sensors focusing on nano/microstructure regulation of the organic semiconductor (OSC) layer.
- To highlight strategies for achieving high sensitivity, selectivity, stability, and rapid response/recovery speeds in OFET gas sensors.
Main Methods:
- Review of devices utilizing one-dimensional (1D) OSC nanostructures (nanowires, nanorods, nanofibers).
- Presentation of devices based on two-dimensional (2D) and ultrathin OSC films fabricated via thermal evaporation, dip-coating, spin-coating, and solution-shearing.
- Introduction of porous OFET sensors and nanostructured receptors for enhanced sensing.
Main Results:
- Nano/microstructure engineering of the OSC layer is an effective strategy for optimizing OFET gas sensor performance.
- Various nanostructured OSC films (1D, 2D, ultrathin, porous) demonstrate potential for sensitive and selective gas detection.
- Nanostructured receptors further enhance the capabilities of OFET-based gas sensors.
Conclusions:
- OFET gas sensors with tailored nano/microstructures represent a significant advancement in chemical sensing technology.
- Further research and development are needed to address existing challenges and unlock the full potential of these devices.
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