Facile Preparation Strategy of Novel Carbon Dots with Aggregation-Induced Emission and Room-Temperature Phosphorescence Characteristics

被引：20

作者：

Ding, Liu ^{[1
,2
]}

Jin, Xilang ^{[1
,3
]}

Gao, Yuchong ^{[4
]}

Wu, Jinlong ^{[2
]}

Ai, Taotao ^{[2
]}

Zhou, Hongwei ^{[1
]}

Chen, Xinyu ^{[1
]}

Zhang, Xinyu ^{[1
]}

Chen, Weixing ^{[1
]}

机构：

[1] Xian Technol Univ, Engn Res Ctr Light Stabilizers Polymer Mat, Sch Mat & Chem Engn, Shaanxi Key Lab Photoelect Funct Mat & Devices,Uni, Xian 710021, Peoples R China

[2] Shaanxi Univ Technol, Sch Mat Sci & Engn, Hanzhong 723000, Peoples R China

[3] Yulin Boyi Jingking Res Inst Ind Technol Dev Res, Yulin 719054, Peoples R China

[4] Univ Penn, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA

来源：

ADVANCED OPTICAL MATERIALS | 2023年 / 11卷 / 05期

基金：

中国国家自然科学基金;

关键词：

aggregation-induced emission; dual fluorescence emission; information encryption; room-temperature phosphorescence; FLUORESCENCE;

D O I：

10.1002/adom.202202349

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

As one of the most promising fluorescent nanomaterials, carbon dots (CDs) are extensively studied. Nevertheless, one-pot synthesis methods for CDs with both dual emission aggregation-induced emission (AIE) and room-temperature phosphorescence (RTP) could lead to significant breakthrough in extensive application fields. Herein, a new class of CDs (E-CCDs) with reversible luminescence (blue dissolved fluorescence and red AIE) and RTP behavior is obtained with an eco-friendly, low-cost one-pot solvothermal method. E-CCDs exhibit dual fluorescence emission at 460 (Em-1) and 600 nm (Em-2), which is related to different emission centers. The addition of cyanic acid enhances the RTP behavior with a lifetime of 1.17 s, which lasts for approximate to 9 s to the naked eye. Based on the unique fluorescence and phosphorescence characteristics of CDs, E-CCDs can be potentially used for fingerprint detection and information encryption.

引用

页数：8

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