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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
[ "丁镠(1992-),女,山西太原人,硕士,实验师,2017年于北京航空航天大学获得硕士学位,主要从事光电高分子材料的研究。" ]
收稿日期:2023-07-29,
修回日期:2023-08-21,
纸质出版日期:2023-11-05
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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.
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(
λ
=400 nm),而在聚集状态或粉末态下则表现为绿色发射(
λ
=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。
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 (
λ
=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.
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