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General Chemistry ›› 2023, Vol. 9 ›› Issue (3-4): 220014-220014.DOI: 10.21127/yaoyigc20220014

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Colloidal Carbon Quantum Dots for Anticounterfeiting

Yuanyuan Hana, Yuanming Zhanga,b,* and Haiguang Zhaoa,b,*   

  1. aCollege of Textiles & Clothing, Qingdao University, Qingdao, Shandong 266071, China;
    bState Key Laboratory of Bio-Fibers and Eco-Textiles & College of Physics, Qingdao University, No. 308 Ningxia Road, Qingdao, Shandong 266071, China
  • Received:2023-01-02 Accepted:2023-02-27 Online:2023-12-30 Published:2024-01-08
  • About author:Email: Zhangyuanming001@163.com (Y. Z.), hgzhao@qdu.edu.cn (H. Z.)

Abstract: More attentions have been paid for developing anti-counterfeiting technologies to fight the endless emergence of fake and inferior products. Compared with inorganic quantum dots, colloidal carbon dots (C-dots) are emerging fluorescent nanomaterials, which have been used for various types of optical and electrical applications, because they have composition-dependent optical properties, including high quantum yield, tunable absorption/emission spectra and good chemical-/photo-stability. In this minireview, we summarized and updated the most recent research works for the use of colloidal C-dots for optical anticounterfeiting applications. We focus on the fluorescent, persistent luminescence and phosphorescent C-dots. In the end, we enclosed this minireview with our owner perspectives on the challenges of C-dots based anticounterfeiting.

Key words: carbon dots, anticounterfeiting, optical materials, persistent luminescence, phosphorescence

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