文献类型：期刊文献

英文题名：Porosity-induced emission: exploring color-controllable fluorescence of porous organic polymers and their chemical sensing applications

作者：Li, Yankai[1,2];Bi, Shiming[2,3];Liu, Fei[1,2];Wu, Shengying[2,3];Hu, Jun[1,2];Wang, Limin[2,3];Liu, Honglai[1,2];Hu, Ying[1,2]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China;[3]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China

年份：2015

卷号：3

期号：26

起止页码：6876

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY C

收录：;EI(收录号：20152600986144);WOS:【SCI-EXPANDED(收录号:WOS:000356965300034)】；

基金：The work was supported by the National Basic Research Program of China (2013CB733501), the National Nature Science Foundation of China (No. 91334203, 21376074, 21272069, 20672035), the 111 Project of China (No. B08021) the Fundamental Research Funds for the Central Universities, the project of FP7-PEOPLE-2013-IRSES (PIRSES-GA-2013-612230) and the Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences.

语种：英文

外文关键词：Aromatic compounds - Chemical sensors - Suspensions (fluids) - Musculoskeletal system - Quenching - Excited states - Nanofibers - Optoelectronic devices - Fluorophores - Organic polymers

摘要：Most organic dyes dissipate their excitation energy in the aggregated state because of the "aggregation-caused quenching'' effect, deteriorating their application in optoelectronic devices. To prevent the "aggregation-caused quenching'' effect, we incorporate a dye-based fluorophore into a porous organic polymer skeleton because porosity would allow the spatial isolation of fluorophores to maintain their emission. Tuning the fraction of fluorophores in the skeleton of FL-SNW-DPPs could spread the emission color coverage from red to blue in both solid-state and suspension. More importantly, the combination of fluorescence and porosity of FL-SNW-DPPs would provide more space to transduce the molecular interaction between adsorbed analytes and fluorophores to the detectable changes in light emission, leading to the fluorescence-off or fluorescence-on detection of electron-deficient or electron-rich analytes.