中国科学院化学研究所机构知识库
Advanced  
ICCAS OpenIR  > 光化学实验室  > 期刊论文
题名: Constructing small molecular AIE luminophores through a 2,2-(2,2-diphenylethene-1,1-diyl) dithiophene core and peripheral triphenylamine with applications in piezofluorochromism, optical waveguides, and explosive detection
作者: Chang, Zheng-Feng1; Jing, Ling-Min1; Liu, Ying-Ying2; Liu, Jun-Jie1; Ye, Yan-Chun1; Zhao, Yong Sheng2; Yuan, Si-Chun3; Wang, Jin-Liang1
刊名: JOURNAL OF MATERIALS CHEMISTRY C
发表日期: 2016
卷: 4, 期:36, 页:8407-8415
收录类别: SCI
英文摘要: In this work, we employ the Corey-Fuchs reaction followed by coupling reactions to develop a series of pi-conjugated aggregation-induced emission (AIE) small-molecule luminophores (DT2A, DT3A and DT4A) through a 2,2-(2,2-diphenylethene-1,1-diyl) dithiophene (DPDT) core with different amounts and different strengths of TPA peripheral moieties. Interestingly, these molecules give obviously higher solid fluorescent quantum efficiency and AIE phenomena. In particular, the thin film of DT3A exhibited the highest fluorescent quantum efficiency of ca. 25% and the DT2A showed the highest alpha(AIE) of 78. Moreover, the excellent optical waveguide applications of DT2A and DT4A were achieved because of their excellent self-assembly properties. Meanwhile, piezofluorochromic behavior with a large red shift of 35 nm only appeared when DT4A was ground using a pestle, because DT4A inserted more TPA and changed the twisting conformation. The piezofluorochromic behavior can be recovered to its original color by fuming with solvent. Finally, DT2A and DT4A were utilized as fluorescent probes to detect nitroaromatic/nitroaliphatic compounds and showed evident fluorescence quenching. These results indicate a huge potential to develop bright AIEgens based on DPDT core units and also provide insights into understanding how piezofluorochromism, optical waveguides and explosive detection properties are influenced by alternating the spatial symmetry of AIE materials with different numbers of TPA terminal groups.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35332
Appears in Collections:光化学实验室_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Beijing Inst Technol, Sch Chem, Beijing Key Lab Photoelect Electrophoton Convers, Beijing 100081, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China
3.Beijing Agr Univ, Coll Biol Sci & Engn, Beijing, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Chang, Zheng-Feng]'s Articles
[Jing, Ling-Min]'s Articles
[Liu, Ying-Ying]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Chang, Zheng-Feng]‘s Articles
[Jing, Ling-Min]‘s Articles
[Liu, Ying-Ying]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院化学研究所 - Feedback
Powered by CSpace