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Influence of vanadium concentration on up-conversion luminescence in Er3+–Yb3+ and Tm3+–Yb3+ ions pair co-doped YVxP1−xO4 solid state solution.

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Title: Influence of vanadium concentration on up-conversion luminescence in Er3+–Yb3+ and Tm3+–Yb3+ ions pair co-doped YVxP1−xO4 solid state solution.
Authors: Wujczyk, Marta1 (AUTHOR), Watras, Adam1 (AUTHOR), Szyszka, Katarzyna1 (AUTHOR), Wiglusz, Rafal J.1 (AUTHOR) r.wiglusz@intibs.pl
Source: Journal of Alloys & Compounds. Dec2021, Vol. 884, pN.PAG-N.PAG. 1p.
Subjects: Vanadium, Ion pairs, Solid solutions, Luminescence, X-ray powder diffraction, Scanning electron microscopes
Abstract: The paper is focused on an influence of vanadium ions on the up-conversion processes in nanosized YV x P 1−x O 4 solid state solution. As a consequence, two series of YV x P 1−x O 4 (where x = 0–1) materials has been obtained via co-precipitation method. Yttrium orthovanadate-phosphate has been co-doped with the up-converting Er3+-Yb3+ and Tm3+-Yb3+ lanthanide ion pairs. Obtained series of nanosized materials has been investigated for phase purity, chemical composition, morphology by the means of X-Ray Powder Diffraction (XRD) and Scanning Electron Microscope (SEM). Photoluminescence properties of 0.25 mol% Tm3+, 20 mol% Yb3+:YV x P 1−x O 4 (x = 0, 0.3, 0.4, 0.5, 0.6, 0.7, 1), and 1 mol% Er3+, 20 mol% Yb3+:YV x P 1−x O 4 (x = 0, 0.3, 0.4, 0.5, 0.6, 0.7, 1) were investigated in detail. It has been found that increase of the vanadium content leading to better up-conversion luminescence. [Display omitted] • Co-precipitation synthesis method lead to obtaining pure YV x P 1-x O 4 co-doped with Tm3+–Yb3+ and Er3+–Yb3+ ions. • Structural and morphological analysis confirmed that materials were nanosized and in accordance with the Vegard's law. • Influence of changing V5+ ion concentration on up-conversion luminescence of Tm3+–Yb3+ and Er3+–Yb3+ was investigated. • Energy level scheme with proposed up-conversion processes (ETU, ESA, CS and CR) was presented. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
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Abstract:The paper is focused on an influence of vanadium ions on the up-conversion processes in nanosized YV x P 1−x O 4 solid state solution. As a consequence, two series of YV x P 1−x O 4 (where x = 0–1) materials has been obtained via co-precipitation method. Yttrium orthovanadate-phosphate has been co-doped with the up-converting Er3+-Yb3+ and Tm3+-Yb3+ lanthanide ion pairs. Obtained series of nanosized materials has been investigated for phase purity, chemical composition, morphology by the means of X-Ray Powder Diffraction (XRD) and Scanning Electron Microscope (SEM). Photoluminescence properties of 0.25 mol% Tm3+, 20 mol% Yb3+:YV x P 1−x O 4 (x = 0, 0.3, 0.4, 0.5, 0.6, 0.7, 1), and 1 mol% Er3+, 20 mol% Yb3+:YV x P 1−x O 4 (x = 0, 0.3, 0.4, 0.5, 0.6, 0.7, 1) were investigated in detail. It has been found that increase of the vanadium content leading to better up-conversion luminescence. [Display omitted] • Co-precipitation synthesis method lead to obtaining pure YV x P 1-x O 4 co-doped with Tm3+–Yb3+ and Er3+–Yb3+ ions. • Structural and morphological analysis confirmed that materials were nanosized and in accordance with the Vegard's law. • Influence of changing V5+ ion concentration on up-conversion luminescence of Tm3+–Yb3+ and Er3+–Yb3+ was investigated. • Energy level scheme with proposed up-conversion processes (ETU, ESA, CS and CR) was presented. [ABSTRACT FROM AUTHOR]
ISSN:09258388
DOI:10.1016/j.jallcom.2021.161022