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28 February 2006 Luminescence and absorption spectra of Eu-complex-doped PVDF film: influence of controlled stretch
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Abstract
Poly(vinylidenefluoride) film (PVDF) doped with Eu(III)(NO3)3(o-Phenanthroline)2 complex (complex A) was manufactured using an extrusion technique. Emission spectrum of the film was compared to spectra of the dopant and polyethylene based film. Stretching the film resulted in a sharp growth of intensity and reshaping of the luminescence spectrum. The impact of the PVDF matrix on the photoluminescence spectra of complex A is attributed to the Stark effect. Reasons for the increase of luminescence intensity are discussed. Quantum chemical calculations revealed a marked longwave shift of the lowest triplet and singlet energy levels of complex A compared to free phenanthroline. The amplification and frequency shifting of the luminescent spectrum of europium-complex-doped PVDF may lead to promising applications.
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Roman Pogreb, Gene Whyman, Mikhail Mestechkin, Shmuel Sternklar, Albina Musin, Yelena Bormashenko, Mordechai Hakham-Itzhaq, Michael Tseitlin, Oleg Popov, Vlad Lirtsman, Dan Davidov, and Edward Bormashenko "Luminescence and absorption spectra of Eu-complex-doped PVDF film: influence of controlled stretch", Proc. SPIE 6116, Optical Components and Materials III, 61160E (28 February 2006); https://doi.org/10.1117/12.643743
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