Photosensitivity and thermosensitivity of polymers doped with Eu(fod)3 molecules

We have studied the photoluminescence (PL) spectra of Eu 3+ ions and the decay kinetics for the photoluminescence intensity on exposure to temperature and UV radiation in polypropylene and oligo(urethane methacrylate) (OUM) doped with Eu(fod) 3 molecules (fod = 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl...

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Bibliographic Details
Published inJournal of applied spectroscopy Vol. 76; no. 1; pp. 93 - 100
Main Authors Rybaltovskii, A. O., Gerasimova, V. I., Zavorotnyi, Yu. S., Chebrova, A. Yu
Format Journal Article
LanguageEnglish
Published Boston Springer US 2009
Subjects
Analytical Chemistry
Atomic/Molecular Structure and Spectra
Physics
Physics and Astronomy
polymer
Eu(fod)3
UV radiation
thermal quenching
photoluminescence
supercritical impregnation
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Summary:We have studied the photoluminescence (PL) spectra of Eu 3+ ions and the decay kinetics for the photoluminescence intensity on exposure to temperature and UV radiation in polypropylene and oligo(urethane methacrylate) (OUM) doped with Eu(fod) 3 molecules (fod = 6,6,7,7,8,8,8-heptafluoro-2,2-dimethyl-3,5-octadione) by soaking in a supercritical CO 2 solution. We have established that the decay kinetics for the photoluminescence intensity on exposure to UV radiation depends on the temperature of the sample and the concentration of the dopant in it. Based on studies of the spectral characteristics of doped OUM samples, we suggest that this material can be used as a two-color luminescent temperature sensor.
ISSN:0021-9037
1573-8647
DOI:10.1007/s10812-009-9144-8