Preparation and application of carbon dots@cyanuric acid composites with aggregation-induced emission effect

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence Pub Date : 2025-01-02 DOI:10.1016/j.jlumin.2025.121063

Jianxi Xie , Lianghua Zhou , Weihao Ye , Yan Zhang , Guangqi Hu , Xiaotang Liu

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引用次数: 0

Abstract

Carbon dots (CDs) with aggregation-induced emission (AIE) effect can effectively solve the problem of weak fluorescence of solid CDs due to aggregation-caused quenching (ACQ) effect. A kind of carbon dots@cyanuric acid composites (CDs@CYA) with AIE effect was reported in this paper, which is prepared by one-step microwave-assisted method using low-toxicity and low-cost imidazole, urea and tartaric acid as precursors. The AIE effect of CDs@CYA is derived from the restriction of intramolecular motion of the imidazole and cyanuric acid (CYA) groups on the surface of CDs in the aggregation state and convert non-radiative energy into radiative energy, as is verified by control variable experiments. CDs@CYA aqueous solution was used in fluorescent anti-counterfeiting ink, light conversion film (LCF), fluorescent probe and biological imaging. CDs@CYA powder was encapsulated on the blue chip with red phosphor by epoxy resin to obtain a white light-emitting diode (LED) device with a color coordinate of (0.33, 0.28), a color temperature of 5558 K and a color rendering index of 76.4.

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来源期刊

Journal of Luminescence 物理-光学

CiteScore

6.70

自引率

13.90%

发文量

850

审稿时长

3.8 months

期刊介绍： The purpose of the Journal of Luminescence is to provide a means of communication between scientists in different disciplines who share a common interest in the electronic excited states of molecular, ionic and covalent systems, whether crystalline, amorphous, or liquid. We invite original papers and reviews on such subjects as: exciton and polariton dynamics, dynamics of localized excited states, energy and charge transport in ordered and disordered systems, radiative and non-radiative recombination, relaxation processes, vibronic interactions in electronic excited states, photochemistry in condensed systems, excited state resonance, double resonance, spin dynamics, selective excitation spectroscopy, hole burning, coherent processes in excited states, (e.g. coherent optical transients, photon echoes, transient gratings), multiphoton processes, optical bistability, photochromism, and new techniques for the study of excited states. This list is not intended to be exhaustive. Papers in the traditional areas of optical spectroscopy (absorption, MCD, luminescence, Raman scattering) are welcome. Papers on applications (phosphors, scintillators, electro- and cathodo-luminescence, radiography, bioimaging, solar energy, energy conversion, etc.) are also welcome if they present results of scientific, rather than only technological interest. However, papers containing purely theoretical results, not related to phenomena in the excited states, as well as papers using luminescence spectroscopy to perform routine analytical chemistry or biochemistry procedures, are outside the scope of the journal. Some exceptions will be possible at the discretion of the editors.