Origin of Bi.sup.3+./sup.–related luminescence in Gd.sub.3./sub.Ga.sub.5./sub.O.sub.12./sub.:Bi epitaxial films

Krasnikov, A.; Luchechko, A.; Mihóková, Eva; Nikl, Martin; Syvorotka, I. I.; Zazubovich, S.; Zhydachevskii, Ya.

doi:https://dx.doi.org/10.1016/j.jlumin.2017.05.050

Number of the records: 1

Origin of Bi.sup.3+./sup.–related luminescence in Gd.sub.3./sub.Ga.sub.5./sub.O.sub.12./sub.:Bi epitaxial films

1.

SYSNO ASEP	0476233
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Origin of Bi³⁺–related luminescence in Gd₃Ga₅O₁₂:Bi epitaxial films
Author(s)	Krasnikov, A. (EE) Luchechko, A. (UA) Mihóková, Eva (FZU-D)_{RID, ORCID, SAI} Nikl, Martin (FZU-D)_{RID, ORCID, SAI} Syvorotka, I. I. (UA) Zazubovich, S. (EE) Zhydachevskii, Ya. (PL)
Number of authors	7
Source Title	Journal of Luminescence. - : Elsevier - ISSN 0022-2313 Roč. 190, Oct (2017), s. 81-88
Number of pages	3 s.
Language	eng - English
Country	NL - Netherlands
Keywords	photoluminescence ; epitaxial films ; gadolinium gallium garnet ; Bi³⁺ ; energy transfer
Subject RIV	BM - Solid Matter Physics ; Magnetism
OECD category	Condensed matter physics (including formerly solid state physics, supercond.)
R&D Projects	GA16-15569S GA ČR - Czech Science Foundation (CSF)
Institutional support	FZU-D - RVO:68378271
UT WOS	000405537100014
EID SCOPUS	85019861751
DOI	10.1016/j.jlumin.2017.05.050
Annotation	Photoluminescence characteristics of Gd3Ga5O12:Bi single crystalline films with different Bi contents grown by the liquid phase epitaxy are studied by the steady-state and time-resolved luminescence spectroscopy methods in the 4.2–500 K temperature range under excitation within the 3.8–6.0 eV. No ultraviolet emission, which could be ascribed to the radiative decay of the triplet excited state of Bi3+, is observed. Only visible emission is shown to arise from the Bi3+–related luminescence centers. Both the intense 2.54 eV emission and the weaker 2.46 eV emission of Gd3Ga5O12:Bi are shown to be of exciton origin. The characteristic parameters of the corresponding exciton states are determined. The photostimulated processes, resulting in the localized excitons formation under excitation in the Bi3+–related absorption bands, are discussed.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2018

Number of the records: 1