Photoluminescence properties of new poly(N-vinylcarbazole)-3-methylthiophene (PVK-3MeT) graft copolymer |
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| Authors: | M. Chemek F. Massuyeau J. Wéry A. Hlel S. Ayachi E. Faulques S. Lefrant K. Alimi |
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| Affiliation: | 1. Unité de recherche, Matériaux Nouveaux et Dispositifs Electroniques Organiques, Faculté des Sciences de Monastir, 5000 Monastir, University of Monastir, Tunisia;2. Institut des Matériaux Jean Rouxel, CNRS-UMR 6502, 2 Rue de la Houssinière, BP 32229, 44322 Nantes cedex 3, France |
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| Abstract: | Steady-state and time-resolved photoluminescence (TRPL) measurements are used in order to investigate the emission properties of new graft copolymer involving poly(N-vinylcarbazole) (PVK) and poly(3-methylthiophene) (PMeT) named PVK-3MeT. The photo-generated species in PVK-3MeT are identified as singlet intrachain excitons. Furthermore, radiative and nonradiative lifetimes have been calculated. The observed changes in the photo-physical properties of the different condensed phases could be directly related to the nanostructure of the material. The use of PVK in the chemical synthesis allows the obtaining of a new organic material with better emission and slowly radiative recombination compared to those of polythiophenes indicating that the radiative channel is more enhanced. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012 |
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| Keywords: | PVK-3MeT graft copolymer UV-vis spectroscopy time resolved photoluminescence (TRPL) |
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