Chem. J. Chinese Universities ›› 2025, Vol. 46 ›› Issue (6): 20240070.doi: 10.7503/cjcu20240070

• Review • Previous Articles     Next Articles

Recent Advances in Carbon Dots with Near-infrared Absorption/Emission

LIU Yupeng1, YANG Junxiang2, HAO Yiming2, QU Songnan1,2()   

  1. 1.Institute of Applied Physics and Materials Engineering,Joint Key Laboratory of Ministry of Education,University of Macau,Macau 999067,China
    2.Department of Physics and Chemistry,Faculty of Science and Technology,University of Macau,Macau 999067,China
  • Received:2024-02-05 Online:2025-06-10 Published:2024-03-22
  • Contact: QU Songnan E-mail:songnanqu@um.edu.mo
  • Supported by:
    the Science and Technology Development Fund of Macau Special Administration Region, China(0128/2020/A3);the Shenzhen-Hong Kong-Macao Science and Technology Innovation Project, China(category C)(SGDX20210823103803021)

Abstract:

Carbon dots(CDs) are an emerging class of zero-dimensional carbon nano-optical materials that are as promising candidates for various applications. Compared with visible light, near-infrared light has deeper tissue penetration and lower scattering, giving it obvious advantages in fields such as biological imaging. Through the exploration of scientific researchers, the optical band gap of CDs has been continuously regulated and red-shifted from the initial blue-violet light to longer wavelengths. In recent years, CDs with near-infrared absorption/emission have been gradually reported. Based on a series of works by our research group on the near-infrared carbon dots, this review summarizes and reviews the latest progress in preparation strategies and applications of near-infrared carbon dots, and prospectively outlines the future development directions.

Key words: Carbon dots, Near-infrared absorption/emission, Bioimaging, Photothermal therapy, Photodynamic therapy

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