Issue 10, 2016
From the journal:

Chemical Communications

Carbon dots with aggregation induced emission enhancement for visual permittivity detection†

Ze Xi Liu,a   Zhu Lian Wu,b   Ming Xuan Gao,b   Hui Liu*a  and  Cheng Zhi Huang*ab  

* Corresponding authors

a Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China
E-mail: liuhui78@swu.edu.cn
Fax: +86 23 68367257
Tel: +86 23 68254659

b Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China
E-mail: chengzhi@swu.edu.cn

Abstract

Photoluminescent carbon dots (CDs), hydrothermally prepared using tannic acid (TA), show visual aggregation induced emission enhancement (AIEE) properties at 455 nm when excited at 350 nm owing to the rotational hindering of the surface groups on CDs such as aromatic rings and phenolic hydroxyl ones, causing exponential decay between the ratio of the photoluminescence intensity in organic solvents to that in water and the permittivity of the solvent, and thus dazzling emissions of the CDs in the presence of solvents with small permittivity, tetrahydrofuran (THF), for instance, could be visually observed.

Graphical abstract: Carbon dots with aggregation induced emission enhancement for visual permittivity detection

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Article information

DOI
https://doi.org/10.1039/C5CC08635C
Article type
Communication
Submitted
18 Oct 2015
Accepted
08 Dec 2015
First published
08 Dec 2015

Chem. Commun., 2016,52, 2063-2066

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Carbon dots with aggregation induced emission enhancement for visual permittivity detection

Z. X. Liu, Z. L. Wu, M. X. Gao, H. Liu and C. Z. Huang, Chem. Commun., 2016, 52, 2063 DOI: 10.1039/C5CC08635C

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