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A novel Eu2+/Tb3+ co‐doped phosphor with pyroxene structure applied for cryogenic thermometric sensing.

Authors :
Su, Ke
Guo, Qingfeng
Shuai, Pengfei
Liu, Ning
Mei, Lefu
Liao, Libing
Source :
Journal of the American Ceramic Society. Apr2022, Vol. 105 Issue 4, p2903-2913. 11p. 1 Color Photograph, 3 Charts, 6 Graphs.
Publication Year :
2022

Abstract

Pyroxene‐type phosphors were widely developed due to the advantages of high chemical stability, luminous efficiency, and low production cost. In this contribution, a series of Eu2+/Tb3+ co‐doped Ca0.75Sr0.2Mg1.05Si2O6 (CSMS) phosphors with pyroxene structure were successfully synthesized by the solid‐state method. Under the 340 nm excitation, the emission peaks of the phosphor show a redshift with the increase of Eu2+ concentration. The emitting color of Eu2+/Tb3+ co‐doped samples shows a redshift attributed to the energy transfer from Eu2+ to Tb3+. Simultaneously, acquired thermometer exposes superbly temperature‐sensitive properties (Sa and Sr having maximum values 4.7% K−1 and 0.6% K−1, respectively) over the cryogenic temperature range (77–280 K). Furthermore, it has good stability and precision at cryogenic temperatures, indicating that CSMS:0.03Eu2+/0.03Tb3+ phosphor is a very promising fluorescent material suitable for cryogenic temperature sensing. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00027820
Volume :
105
Issue :
4
Database :
Academic Search Index
Journal :
Journal of the American Ceramic Society
Publication Type :
Academic Journal
Accession number :
155029160
Full Text :
https://doi.org/10.1111/jace.18275