New insights into UV laser irradiation effect on luminescent behavior of vitrified films based on mesogenic lanthanide(III) β-diketonate complexes

Dmitry V. Lapaev,Victor G. Nikiforov,Vladimir S. Lobkov,Andrey A. Knyazev,Aleksandr S. Krupin,Yuriy G. Galyametdinov

Journal of Photochemistry and Photobiology A: Chemistry（2019）

Cited 13|Views19

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Abstract

•Nondestructive UV laser effect on films of Ln(III) β-diketonate complexes is shown.•Vitrified Eu(CPDK3-7)3phen film (sandwiched between quartz plates) was prepared.•Eu3+ ions had been used to monitor UV laser-induced photophysical processes in film.•Changes in energy transfer and non-radiative relaxation processes were revealed.•Film structural changes are considered as responsible for observed phenomenon.

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Key words

Lanthanide(III) β-diketonate complexes,Photostability,Luminescent vitrified films,Intramolecular energy transfer,Eu3+ ions emission

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