Effects of annealing on the structures and properties of Er,Yb:LuGdVO4 crystal

Nianjing Ji; Yang Chen; Ziqing Li; Jiyang Wang; Xiulan Duan; Kegao Liu; Huaidong Jiang

Results in Physics (Sep 2019)

Effects of annealing on the structures and properties of Er,Yb:LuGdVO4 crystal

Nianjing Ji,
Yang Chen,
Ziqing Li,
Jiyang Wang,
Xiulan Duan,
Kegao Liu,
Huaidong Jiang

Affiliations

Nianjing Ji: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China; School of Materials Science and Engineering, Shandong Jianzhu University, Fengming Road, Jinan 250101, China
Yang Chen: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
Ziqing Li: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
Jiyang Wang: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China
Xiulan Duan: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China; Corresponding authors at: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China.
Kegao Liu: School of Materials Science and Engineering, Shandong Jianzhu University, Fengming Road, Jinan 250101, China
Huaidong Jiang: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China; School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China; Corresponding authors at: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University, Jinan 250100, China.

Journal volume & issue: Vol. 14

Abstract

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The Er,Yb:LuGdVO4 crystal was grown by the Czochralski method under the oxygen-deficient atmosphere, and cut into slices, which were annealed in different conditions. The crystalline quality of the as-grown crystal was characterized by high resolution X-ray diffraction (HRXRD). The effects of different annealing conditions on the structures, chemical states and local symmetry of Er,Yb:LuGdVO4 were studied by X-ray diffraction (XRD), Raman, X-ray photoelectron spectroscopy (XPS) and X-ray absorption near edge structure (XANES) in detail. The content of V4+ in the crystal obviously decreased after annealing. The distribution of elements in the sample was analyzed by the SR-based X-ray fluorescence (XRF). The specific heat and thermal diffusion of Er,Yb:LuGdVO4 crystal were measured, and absorption spectra of the samples annealed in different conditions were recorded at room temperature. The results show that the annealing process has few influences on the thermal properties and remarkable influences on the optical properties. Keywords: Er,Yb:LuGdVO4, Annealing, XPS, Optical property

Published in Results in Physics

ISSN: 2211-3797 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics
Website: http://www.journals.elsevier.com/results-in-physics/

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