Origin of luminescence in Bi.sup.3+./sup. - doped lanthanide niobates

Baran, M.; Belikov, K.N.; Kissabekova, A.; Krasnikov, A.; Lushchik, A.; Mihóková, Eva; Tsiumra, V.; Vasylechko, L.; Zazubovich, S.; Zhydachevskyy, Ya.

doi:https://dx.doi.org/10.1016/j.jallcom.2020.157800

Number of the records: 1

Origin of luminescence in Bi.sup.3+./sup. - doped lanthanide niobates

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SYSNO ASEP	0547614
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Origin of luminescence in Bi³⁺ - doped lanthanide niobates
Author(s)	Baran, M. (PL) Belikov, K.N. (UA) Kissabekova, A. (EE) Krasnikov, A. (EE) Lushchik, A. (EE) Mihóková, Eva (FZU-D)_{RID, ORCID, SAI} Tsiumra, V. (PL) Vasylechko, L. (UA) Zazubovich, S. (EE) Zhydachevskyy, Ya. (PL)
Number of authors	10
Article number	157800
Source Title	Journal of Alloys and Compounds. - : Elsevier - ISSN 0925-8388 Roč. 859, April (2021)
Number of pages	17 s.
Language	eng - English
Country	NL - Netherlands
Keywords	photoluminescence ; time-resolved spectroscopy ; exciton-like states ; lanthanide niobates ; Bi³⁺
Subject RIV	BM - Solid Matter Physics ; Magnetism
OECD category	Condensed matter physics (including formerly solid state physics, supercond.)
R&D Projects	EF16_019/0000760 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Method of publishing	Limited access
Institutional support	FZU-D - RVO:68378271
UT WOS	000614114500049
EID SCOPUS	85096919387
DOI	10.1016/j.jallcom.2020.157800
Annotation	Photoluminescence characteristics of the undoped and Bi3+-doped lanthanide niobates are investigated by the steady-state and time-resolved spectroscopy methods in a wide temperature range of 4.2e500 K. The broad visible emission bands with the large Stokes shifts are found to arise from the triplet relaxed excited states characterized by a small (~1 meV) spin-orbit splitting energy. This indicates the exciton-like origin of all the observed emission bands. The data allow to conclude that the Bi3+-related triplet relaxed excited state is located inside the conduction band. No ultraviolet emission caused by the radiative decay of the triplet relaxed excited state of a Bi3+ ion is observed.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2022
Electronic address	https://doi.org/10.1016/j.jallcom.2020.157800

Number of the records: 1