Effect of Temperature and Oxygen on Luminescence Spectra and Polarization of Divinylbenzoxazolylbiphenyl Thin Films

H-type molecular aggregation as assembly with chromophore dipoles arranged parallel to each other has been observed in absorption and luminescence spectra of divinylbenzoxazolylbiphenyl thin films deposited on quartz glass substrate by thermovacuum method. The reversible changes of fluorescence anis...

Full description

Saved in:
Bibliographic Details
Published in:Journal of fluorescence 2008-07, Vol.18 (3-4), p.633-637
Main Authors: Kukhta, A. V., Kolesnik, E. E, Kukhta, I. N., Dudko, E. V., Tolkachev, V. A., Osipov, K. A., Pavlovskii, V. N., Olkhovik, V. K., Galinovskii, N. A.
Format: Article
Language:English
Subjects:
Agglomeration
Analytical Chemistry
Anisotropy
Biochemistry
Biological and Medical Physics
Biomedical and Life Sciences
Biomedicine
Biophysics
Biotechnology
Fluorescence
Luminescence
Original Paper
Quenching
Silica glass
Spectra
Thin films
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:H-type molecular aggregation as assembly with chromophore dipoles arranged parallel to each other has been observed in absorption and luminescence spectra of divinylbenzoxazolylbiphenyl thin films deposited on quartz glass substrate by thermovacuum method. The reversible changes of fluorescence anisotropy have been observed under film heating below the glass transition temperature correlating with lifetime changes. The addition of oxygen was found to cause an essential luminescence quenching. The hexyloxy group in the side chain of dibenzoxazolylbiphenyl molecule decreases H-type molecular aggregation and energy migration, and increases luminescence quenching induced by adsorbed oxygen owing to the formation of more porous film morphology.
ISSN:1053-0509
1573-4994
DOI:10.1007/s10895-008-0325-2