Unusual absorption and fluorescence properties of 1,6-diphenyl- 1,3,5-hexatriene in poly(vinyl alcohol) film

A. Kawski, A. Kubicki, B. Kukliński, I. Gryczyński

Research output: Contribution to journalArticlepeer-review

54 Scopus citations

Abstract

The effect of temperature on the absorption and fluorescence properties of 1,6-diphenyl-1,3,5-hexatriene (DPH) in poly(vinyl alcohol) (PVA) film was investigated in the range 295-428 K. On heating above 353 K, the optical density (in the long-wavelength region) and the quantum yield of DPH increase rapidly. This effect is irreversible, i.e. once the sample is heated it retains its absorbance and fluorescence quantum yield on cooling to room temperature. It has its origin in the cis-trans conversion of DPH molecules in the PVA melt at high temperatures.

Original languageEnglish
Pages (from-to)161-167
Number of pages7
JournalJournal of Photochemistry and Photobiology, A: Chemistry
Volume71
Issue number2
DOIs
StatePublished - 1 Apr 1993

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