New Carbazole-Based Fluorophores: Synthesis, Characterization, and Aggregation-Induced Emission Enhancement

被引:176
作者
Dong, Shoucheng [1 ]
Li, Zhen [1 ]
Qin, Jingui [1 ]
机构
[1] Wuhan Univ, Dept Chem, Hubei Key Lab Organ & Polymer Optoelect Mat, Wuhan 430072, Peoples R China
基金
美国国家科学基金会;
关键词
LIGHT-EMITTING-DIODES; SOLID-STATE; OPTICAL-PROPERTIES; STRUCTURAL CONTROL; TRIPLET EMITTERS; SITE-ISOLATION; HOST MATERIALS; FLUORESCENCE; PHOTOLUMINESCENCE; LUMINESCENCE;
D O I
10.1021/jp807510a
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A series of new carbazole-based luminophores (1-12) were synthesized and well characterized, which demonstrated aggregation-induced emission enhancement (AIEE) properties. The obtained experimental results demonstrated that the attachment of aromatic rotors to luminophore moieties would lead to the decreased quantum yields (measured in diluted solutions); the more rotors attached, the smaller the quantum yields tested. This further confirmed that the AIEE phenomena were caused by the restriction of the intramolecular vibrational and rotational motions in an indirect manner.
引用
收藏
页码:434 / 441
页数:8
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