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Photophysical characterization of diphenyl-substituted phenylenevinylene and diphenylenevinylene polymers

Authors
Journal
Polymer
0032-3861
Publisher
Elsevier
Publication Date
Volume
42
Issue
7
Identifiers
DOI: 10.1016/s0032-3861(00)00522-x
Keywords
  • Luminescent Polymers
  • Phenylenevinylene Polymers
  • Diphenylenevinylene Polymers
Disciplines
  • Physics

Abstract

Abstract Neat films and solutions of poly[1,4-phenylene-1,2-di(4-phenoxyphenyl)vinylene], poly[1,4-phenylene-1,2-di(phenthiophenyl)vinylene], poly[4,4′-diphenylene-1,2-di(4-phenoxyphenyl)vinylene] and poly[4,4′-diphenylene-1,2-di(4-fluorophenyl)vinylene] in 1,4-dioxane are investigated. The optical constants of the neat films are determined, absorption and fluorescence data are analysed, and picosecond laser saturable absorption studies are carried out. The fluorescence lifetimes and fluorescence quantum yields are analysed to determine the emitting chromophore size (electronic delocalization). The saturable absorption measurements are used to determine the average absorption segment size.

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