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

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 MgGd₄Si₃O₁

SUBMITTER: Deng A 

PROVIDER: S-EPMC8892673 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature