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<p>Ultraviolet photodetectors have attracted for several application such as space exploration, photography, real-time monitoring, optical fibre communication, environmental sensing. Wide bandgap binary or ternary or quaternary semiconductors have been utilized as the most promising candidates for ultraviolet photodetection application. But due to high fabrication cost, complete synthesis process, high temperature growth process and lattice mismatch restrict its use in low-cost UV photodetection applications. Recently, low-cost carbon-based nanomaterial such as graphene quantum dots (GQD), carbon nanodots (CND), carbon quantum dots (CQD), carbon dots (CD), graphene oxide quantum dots (GQD), fullerene, carbon nanotube and polymer dots attracted for UV-photodetector application due to the strong ultraviolet photoabsorption and high UV/visible reject ration. This review provides an in-depth analysis of graphene quantum dots (GQDs) based ultraviolet (UV) photodetectors. GQDs have emerged as a promising material for UV detection due to their exceptional optical and electrical properties. Here, we have discussed the potential use of GQD as wide-bandgap UV photodetection material. The review also covers the device architectures, sensing mechanisms, and performance metrics of GQDs-based UV photodetectors. This comprehensive review aims to provide a thorough understanding of GQDs-based UV photodetectors and their potential for various applications.</p>

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Graphene quantum dots based UV-photodetector: a comprehensive review

  • 期刊论文

  • 发表日期：

    2026年3月16日

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  • Tanmoy Majumder,
  • Sarit Chakraborty,
  • Jehova Jire L. Hmar,
  • Raju Patel,
  • Prasanth Kumar

摘要

Ultraviolet photodetectors have attracted for several application such as space exploration, photography, real-time monitoring, optical fibre communication, environmental sensing. Wide bandgap binary or ternary or quaternary semiconductors have been utilized as the most promising candidates for ultraviolet photodetection application. But due to high fabrication cost, complete synthesis process, high temperature growth process and lattice mismatch restrict its use in low-cost UV photodetection applications. Recently, low-cost carbon-based nanomaterial such as graphene quantum dots (GQD), carbon nanodots (CND), carbon quantum dots (CQD), carbon dots (CD), graphene oxide quantum dots (GQD), fullerene, carbon nanotube and polymer dots attracted for UV-photodetector application due to the strong ultraviolet photoabsorption and high UV/visible reject ration. This review provides an in-depth analysis of graphene quantum dots (GQDs) based ultraviolet (UV) photodetectors. GQDs have emerged as a promising material for UV detection due to their exceptional optical and electrical properties. Here, we have discussed the potential use of GQD as wide-bandgap UV photodetection material. The review also covers the device architectures, sensing mechanisms, and performance metrics of GQDs-based UV photodetectors. This comprehensive review aims to provide a thorough understanding of GQDs-based UV photodetectors and their potential for various applications.