Porosity-induced emission: exploring color-controllable fluorescence of porous organic polymers and their chemical sensing applications. Issue 26 (10th June 2015)

• Record Type: Journal Article
• Authors: Li, Yankai; Bi, Shiming; Liu, Fei; Wu, Shengying; Hu, Jun; Wang, Limin; Liu, Honglai; Hu, Ying
• Is Part Of: Journal of materials chemistry. Volume 3:Issue 26(2015)
• Page Start: 6876
• Page End: 6881
• Publication Date: 2015-06-10
• Subjects: Materials -- Periodicals; Chemistry, Analytic -- Periodicals; Optical materials -- Research -- Periodicals; Electronics -- Materials -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c5tc00682a
• Languages: English
• ISSNs: 2050-7526

Abstract

Abstract : "Porosity-induced emission" for the synthesis of POPs with tunable fluorescence color for chemical sensing applications. Abstract : 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.