Issue 34, 2022

Up-conversion luminescence properties and temperature sensitivity of AgBi(MoO4)2:Yb3+/Er3+/Ho3+/Tm3+ phosphors

Abstract

This work begins with a study of the synthesis of multi-color luminescence phosphors, which is followed by a discussion of the temperature sensitivity of AgBi(MoO4)2:Yb3+/Er3+. Uniform and approximately spherical particles of AgBi(MoO4)2-based phosphors were prepared by a simple one-step hydrothermal method without adding any surfactant. We obtained a series of rich green, yellow, blue, and white luminescence phosphors by doping Ln3+ (Ln3+ = Yb3+, Er3+, Ho3+, Tm3+) into the AgBi(MoO4)2 matrix, and an analysis of various correlative factors was made, especially for the amounts of doping ions. Furthermore, the investigation of the temperature sensitivity of AgBi(MoO4)2:Yb3+/Er3+ revealed that the fluorescence intensity becomes lower with increasing temperature from 323 to 573 K. The fluorescence intensity ratio (FIR) of the two thermal coupling energy levels (2H11/2, 4S3/2) of Er3+ was calculated, and the absolute sensitivity of the obtained phosphor reached a maximum value of 1.32% K−1 at 463 K, as obtained by fitting the FIR as a function of temperature, which is a relatively high level compared with other related materials. This material is expected to be used as a highly sensitive FIR thermometer.

Graphical abstract: Up-conversion luminescence properties and temperature sensitivity of AgBi(MoO4)2:Yb3+/Er3+/Ho3+/Tm3+ phosphors

Associated articles

Article information

Article type
Paper
Submitted
31 May 2022
Accepted
21 Jul 2022
First published
22 Jul 2022

CrystEngComm, 2022,24, 6001-6008

Up-conversion luminescence properties and temperature sensitivity of AgBi(MoO4)2:Yb3+/Er3+/Ho3+/Tm3+ phosphors

H. Wu, Y. Liang, Y. Ma, J. Yang and S. Hu, CrystEngComm, 2022, 24, 6001 DOI: 10.1039/D2CE00752E

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