Issue 43, 2024
From the journal:

RSC Advances

Luminescence properties of Bi3+/Sm3+ co-doped K3Gd5(PO4)6 phosphors for self-referencing optical thermometry†

Jing Wang, ORCID logo a   Mingjun Song,*a   Junpeng Xue,*b   Shala Bic  and  Hyo Jin Seo ORCID logo *d  

* Corresponding authors

a School of Chemistry and Chemical Engineering, Weifang University, Weifang, Shandong, China
E-mail: smj521209@126.com

b School of Science, Jiangsu University of Science and Technology, Zhenjiang, China

c Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, China

d Department of Physics, Pukyong National University, Busan 608-737, South Korea

Abstract

Potassium gadolinium phosphates [K3Gd5(PO4)6] co-doped with Bi3+/Sm3+ phosphors were prepared by traditional solid-state method. Their structure, morphology, luminescence properties, energy transfer, temperature sensing performance and thermal stability have been systematically investigated. The emission and excitation spectra, as well as decay curves were recorded to study the luminescence mechanism. By co-doping Bi3+/Sm3+, white emission color can be obtained. In addition, the emission intensity ratios of Bi3+ and Sm3+ ions present excellent temperature sensing performance in a wide temperature range. The maximum relative sensitivities of K3Gd5(PO4)6 doped with Bi3+/Sm3+ can reach to 3.13% K−1. In addition, K3Gd5(PO4)6:Bi3+,Sm3+ phosphors exhibit high thermal stability of about 55.3% at 423 K compared to room temperature.

Graphical abstract: Luminescence properties of Bi3+/Sm3+ co-doped K3Gd5(PO4)6 phosphors for self-referencing optical thermometry

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Article information

DOI
https://doi.org/10.1039/D4RA06205A
Article type
Paper
Submitted
28 Aug 2024
Accepted
27 Sep 2024
First published
03 Oct 2024
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2024,14, 31398-31408

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Luminescence properties of Bi3+/Sm3+ co-doped K3Gd5(PO4)6 phosphors for self-referencing optical thermometry

J. Wang, M. Song, J. Xue, S. Bi and H. J. Seo, RSC Adv., 2024, 14, 31398 DOI: 10.1039/D4RA06205A

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