Issue 4, 2021

Upconversion luminescence and temperature sensing characteristics of Yb3+/Tm3+:KLa(MoO4)2 phosphors

Abstract

Yb3+/Tm3+ codoped KLa(MoO4)2 phosphors are synthesized by a hydrothermal method. Under 980 nm excitation, the upconversion (UC) emission spectra of the phosphors are observed. The temperature sensing characteristic based on the fluorescence intensity ratio is studied. The maximum sensitivity reaches 2.93% K−1 at 453 K. The sensitivity value of non-thermally coupled levels is higher than that of thermally coupled levels. The results indicate that the KLa(MoO4)2:Yb3+/Tm3+ phosphor could be used in temperature sensors.

Graphical abstract: Upconversion luminescence and temperature sensing characteristics of Yb3+/Tm3+:KLa(MoO4)2 phosphors

Article information

Article type
Paper
Submitted
20 Nov 2020
Accepted
14 Dec 2020
First published
14 Dec 2020

Dalton Trans., 2021,50, 1239-1245

Upconversion luminescence and temperature sensing characteristics of Yb3+/Tm3+:KLa(MoO4)2 phosphors

Y. Zhang, B. Wang, Y. Liu, G. Bai, Z. Fu and H. Liu, Dalton Trans., 2021, 50, 1239 DOI: 10.1039/D0DT03979A

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