Journal Article

PUBDB-2026-01271

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png NASICON-type Na$_{3.6}$Y$_{1.8−x}$Sc$_x$(PO_4)$_3$ solid solutions: structure and luminescence

Krutyak, N. (Corresponding author) ; Wlodarczyk, D. ; Kudryavtseva, I. ; Zhydachevskyy, Y. ; Vistorskaja, D. ; Spassky, D.Extern*

2026
Soc. London

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Please use a persistent id in citations: doi:10.1039/D5DT03126E

Abstract: The structural and luminescence properties of single-phase Na$_{3.6}$Y$_{1.8−x}$Sc$_x$(PO_4)$_3$ (0 ≤ x ≤ 0.7, x = 1.8) phosphors have been studied for the first time. X-ray diffraction revealed the formation of a homogeneous solid solution with a NASICON-type structure. No phase transitions were observed by Raman spectroscopy within the 88–873 K temperature range. The bandgap of Na$_{3.6}$Y$_{1.8−x}$Sc$_x$(PO_4)$_3$ solid solutions was estimated to be E$_g$ ∼ 8 eV, showing no significant dependence on composition. Luminescence properties were examined under VUV, synchrotron, and electron beam irradiation. An intense UV emission was observed under VUV and synchrotron excitation, attributed to 2pO–3dSc self-trapped excitons. Enhanced intensity and thermal stability of exciton emission are detected for solid solutions and related to the effect of structural disorder.

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Contributing Institute(s):

1. DOOR-User (DOOR ; HAS-User)

Research Program(s):

1. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
2. FS-Proposal: I-20220273 EC (I-20220273-EC) (I-20220273-EC)

Experiment(s):

1. PETRA Beamline P66 (PETRA III)

Appears in the scientific report 2026

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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