title: Carbon dots with aggregation induced emission enhancement for visual permittivity detection.
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.
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China. liuhui78@swu.edu.cn.
authors.forename: Ze Xi
authors.initials: ZX
authors.lastname: Liu
authors.affiliation: Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China. chengzhi@swu.edu.cn.
authors.forename: Zhu Lian
authors.initials: ZL
authors.lastname: Wu
authors.affiliation: Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China. chengzhi@swu.edu.cn.
authors.forename: Ming Xuan
authors.initials: MX
authors.lastname: Gao
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China. liuhui78@swu.edu.cn.
authors.forename: Hui
authors.initials: H
authors.lastname: Liu
authors.affiliation: Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Science, Southwest University, Chongqing 400715, China. liuhui78@swu.edu.cn and Chongqing Key Laboratory of Biomedical Analysis (Southwest University), Chongqing Science & Technology Commission, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China. chengzhi@swu.edu.cn.
authors.forename: Cheng Zhi
authors.initials: CZ
authors.lastname: Huang