MgGd4Si3O13:Ce3+, Mn2+: A Dual-Excitation Temperature Sensor

Aixia Deng; Zilong Wang; Xufeng Zhou; Wanying Geng

doi:10.1021/acsomega.1c04710

MgGd₄Si₃O₁₃:Ce³⁺, Mn²⁺: A Dual-Excitation Temperature Sensor

ACS Omega. 2022 Feb 19;7(8):6481-6487. doi: 10.1021/acsomega.1c04710. eCollection 2022 Mar 1.

Authors

Aixia Deng¹, Zilong Wang¹, Xufeng Zhou¹, Wanying Geng¹

Affiliation

¹ School of Material Science and Engineering, Liaocheng University, Liaocheng 252000, China.

Abstract

A novel apatite-based phosphor MgGd₄Si₃O₁₃[Mg₂Gd₈(SiO₄)₆O₂]:Ce³⁺, Mn²⁺ was designed and successfully synthesized by a solid-state reaction. Based on the different luminescence properties under 298 and 340 nm excitations, its potential application as a dual-excitation luminescent ratiometric thermometer was studied in detail. Under the excitations of 298 and 340 nm, the fluorescent intensity ratio of Ce³⁺ and Mn²⁺ is linearly correlated in the temperature range of 303-473 K. The sensitivity showed an opposite trend with the increase of temperature, and the maximum value was 0.95% K^-1. These results indicated that MgGd₄Si₃O₁₃: Ce³⁺, Mn²⁺ can be used as an ideal dual-excitation luminescent ratiometric thermometer.