Free volume dependent fluorescence property of PMMA composite: Positron annihilation studies

V. Ravindrachary, S. D. Praveena, R. F. Bhajantri, Ismayil, Vincent Crasta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The free volume related fluorescence properties of chalcone chromophore [1-(4-methylphenyl)-3-(4-N, N, dimethylaminophenyl)-2-propen-1-one doped Poly(methyl methacrylate) have been studied using fluorescence spectroscopy and Positron Annihilation lifetime spectroscopy techniques. The fluorescence spectra show that the fluorescence behavior depends on the free volume dependent polymer microstructure and varies with dopant concentration with in the composite. The origin and variation of fluorescence is understood by twisted internal charge transfer state as well as free volume. The Positron annihilation study shows that the free volume related microstructure of the composite is vary with doping level.

Original languageEnglish
Title of host publicationSolid State Physics - Proceedings of the 57th DAE Solid State Physics Symposium 2012
Pages126-127
Number of pages2
Volume1512
DOIs
Publication statusPublished - 15-03-2013
Event57th DAE Solid State Physics Symposium 2012 - Bombay, Mumbai, India
Duration: 03-12-201207-12-2012

Conference

Conference57th DAE Solid State Physics Symposium 2012
CountryIndia
CityBombay, Mumbai
Period03-12-1207-12-12

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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