Enabling robust and hour-level organic long persistent luminescence from carbon dots by covalent fixation

Kai Jiang; Yuci Wang; Cunjian Lin; Licheng Zheng; Jiaren Du; Yixi Zhuang; Rongjun Xie; Zhongjun Li; Hengwei Lin

doi:10.1038/s41377-022-00767-y

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Enabling robust and hour-level organic long persistent luminescence from carbon dots by covalent fixation

Articles

- Enabling robust and hour-level organic long persistent luminescence from carbon dots by covalent fixation
- Light: Science & Applications Vol. 11, Issue 4, Pages: 686-696(2022)
- Affiliations：
  
  1.International Joint Research Center for Photo-responsive Molecules and Materials, School of Chemical and Material Engineering, Jiangnan University, 214122, Wuxi, China
  2.College of Chemistry, Zhengzhou University, 450001, Zhengzhou, China
  3.State Key Laboratory of Physical Chemistry of Solid Surface, Fujian Provincial Key Laboratory of Materials Genome, and College of Materials, Xiamen University, 361005, Xiamen, China
- Author bio：
  
  Kai Jiang (jiangkai@nimte.ac.cn)
  Hengwei Lin (linhengwei@jiangnan.edu.cn)
- Funds：
- DOI：10.1038/s41377-022-00767-y
  CLC：
- Published：30 April 2022，
  
  Published Online：29 March 2022，
  
  Received：14 October 2021，
  
  Revised：13 February 2022，
  
  Accepted：08 March 2022
- Accepted：
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Jiang, K. et al. Enabling robust and hour-level organic long persistent luminescence from carbon dots by covalent fixation. Light: Science & Applications, 11, 686-696 (2022).
DOI：

Jiang, K. et al. Enabling robust and hour-level organic long persistent luminescence from carbon dots by covalent fixation. Light: Science & Applications, 11, 686-696 (2022). DOI： 10.1038/s41377-022-00767-y.

摘要

Abstract

The first carbon dot (CD)-based organic long persistent luminescence (OLPL) system exhibiting more than 1 h of duration was developed. In contrast to the established OLPL systems

herein

the reported CDs-based system (named m-CDs@CA) can be facilely and effectively fabricated using a household microwave oven

and more impressively

its LPL can be observed under ambient conditions and even in aqueous media. XRD and TEM characterizations

afterglow decay

time-resolved spectroscopy

and ESR analysis were performed

showing the successful composition of CDs and CA

the formation of exciplexes and long-lived charged-separated states. Further studies suggest that the production of covalent bonds between CA and CDs plays pivotal roles in activating LPL and preventing its quenching from oxygen and water. To the best of our knowledge

this is a very rare example of an OLPL system that exhibits hour-level afterglow under ambient conditions. Finally

applications of m-CDs@CA in glow-in-the-dark paints for emergency signs and multicolored luminous pearls were preliminarily demonstrated. This work may provide new insights for the development of rare-earth-free and robust OLPL materials.

关键词

Keywords

references

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