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Updated: May 1, 2026

Development and Functionalization of Electrolyte-Gated Graphene Field-Effect Transistor for Biomarker Detection
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Photosensitive graphene transistors.

Jinhua Li1, Liyong Niu, Zijian Zheng

  • 1Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China.

Advanced Materials (Deerfield Beach, Fla.)
|April 10, 2014
PubMed
Summary
This summary is machine-generated.

Graphene transistors are excellent for high-performance photodetectors across all wavelengths. This review details their design, physics, and performance for emerging electronics and communications.

Keywords:
field effect transistorgrapheneinfraredphotodetectorterahertz

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Area of Science:

  • Materials Science
  • Optoelectronics
  • Nanotechnology

Background:

  • Photodetectors are crucial for technologies in medicine, communication, and security.
  • Graphene's unique properties, like high carrier mobility and broad light absorption, make it ideal for photodetector applications.
  • Graphene field-effect transistors (GFETs) offer inherent amplification and miniaturization potential for photodetection.

Purpose of the Study:

  • To review the applications of graphene transistors as photodetectors across terahertz to ultraviolet wavelengths.
  • To focus on device design, underlying physics, and photosensitive performance.
  • To analyze graphene quality's impact on device performance based on preparation methods.

Main Methods:

  • Review of existing literature on graphene transistor photodetectors.
  • Analysis of device designs and operational physics.
  • Comparison of performance based on graphene synthesis techniques.

Main Results:

  • Graphene transistors demonstrate promising photodetection capabilities across a wide spectral range (THz-UV).
  • Device performance is strongly correlated with graphene quality and preparation method.
  • GFETs offer advantages like inherent signal amplification and scalability.

Conclusions:

  • Graphene transistors are versatile and high-performance components for advanced photodetector applications.
  • Further research into graphene quality control is essential for optimizing photodetector performance.
  • These devices are poised for significant impact in flexible, wearable, transparent electronics, and high-frequency communications.