Preparation and Characterization of Nitrogen and Sulfur Doped Green Carbon Dots with Aggregation-induced Emission

DING Liu; KANG Shouwang; WANG Yu; DENG Zhifeng; ZHAO Zhongguo

doi:10.37188/CJL.20230177

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Preparation and Characterization of Nitrogen and Sulfur Doped Green Carbon Dots with Aggregation-induced Emission

Synthesis and Properties of Materials | 更新时间：2023-11-27

- Preparation and Characterization of Nitrogen and Sulfur Doped Green Carbon Dots with Aggregation-induced Emission
  增强出版
- Chinese Journal of Luminescence Vol. 44, Issue 11, Pages: 2002-2010(2023)
- 作者机构：
  
  1.陕西理工大学材料科学与工程学院，陕西汉中　723000
  2.航空工业陕西飞机工业有限责任公司，陕西汉中　723200
- 作者简介：
- 基金信息：
  
  the Funds of Shaanxi University of Technology(SLGKYXM2309)
- DOI：10.37188/CJL.20230177
  CLC： O482.31
- Published：05 November 2023，
  
  Received：29 July 2023，
  
  Revised：21 August 2023，
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丁镠,康守旺,王羽等.氮、硫掺杂具有聚集诱导发光绿色碳点的制备与表征[J].发光学报,2023,44(11):2002-2010.

DING Liu,KANG Shouwang,WANG Yu,et al.Preparation and Characterization of Nitrogen and Sulfur Doped Green Carbon Dots with Aggregation-induced Emission[J].Chinese Journal of Luminescence,2023,44(11):2002-2010.
丁镠,康守旺,王羽等.氮、硫掺杂具有聚集诱导发光绿色碳点的制备与表征[J].发光学报,2023,44(11):2002-2010. DOI： 10.37188/CJL.20230177.

DING Liu,KANG Shouwang,WANG Yu,et al.Preparation and Characterization of Nitrogen and Sulfur Doped Green Carbon Dots with Aggregation-induced Emission[J].Chinese Journal of Luminescence,2023,44(11):2002-2010. DOI： 10.37188/CJL.20230177.

摘要

由于聚集诱导猝灭效应（ACQ）的存在极大地限制了碳点（CDs）在固态领域的应用，本文采用环保、低成本的一步溶剂热法制备了一类氮/硫掺杂具有高荧光量子产率（PLQY）和AIE效应的新型CDs（G⁃CDs），并对其结构和光学性质进行了分析和表征。G⁃CDs在溶液中表现出蓝色发射（

=400 nm），而在聚集状态或粉末态下则表现为绿色发射（

=500 nm），并测得粉末的PLQY为48.6%。随着水的浓度增加，G⁃CDs发生聚集荧光发射红移，证实了CDs的AIE特性。基于这种独特的双发射特点和AIE效应，G⁃CDs在信息加密、油墨印刷和发光照明方面具有重要的应用潜力。

Abstract

Due to the existence of aggregation-caused quenching （ACQ） effect， the application of carbon dots （CDs） in the solid state field is greatly limited. Herein， a new class of nitrogen/sulfur-doped CDs （G-CDs） with high fluorescence quantum yield （PLQY） and AIE effect are obtained with an eco-friendly， low-cost one-pot solvothermal method， and the structure and properties were analyzed and characterized. G-CDs exhibit blue emission （

=400 nm） in organic solvents while after adding water， because of AIE effect. G-CDs in the aggregated state manifested as green emission， and the PLQY of the powder was measured to be 48.6%. With the increase of water concentration， the aggregation fluorescence emission of G-CDs was red-shifted， which confirmed the AIE characteristics of CDs. Based on the unique emission fluorescence and AIE effect， G-CDs have important potential applications in information encryption， ink printing and luminescent lighting.

关键词

碳点聚集诱导猝灭（ACQ）聚集诱导发射（AIE）防伪应用

Keywords

carbon dotsaggregation-caused quenchingaggregation-induced emissionanti-counterfeiting applications

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