Three-mode optical thermometer based on Ca3LiMgV3O12:Sm3+ phosphors. Issue 10 (15th May 2023)

• Record Type: Journal Article
• Authors: Chen, JianQuan; Chen, JunYu; Zhang, WenNa; Xu, ShuJun; Chen, LiPing; Guo, Hai
• Is Part Of: Ceramics international. Volume 49:Issue 10(2023)
• Page Start: 16252
• Page End: 16259
• Publication Date: 2023-05-15
• Subjects: Ca3LiMgV3O12:Sm3+ -- Phosphors -- Three-mode optical thermometry -- Fluorescence intensity ratio (FIR) -- Excitation intensity ratio (EIR); Ceramics -- Periodicals; Céramique industrielle -- Périodiques; Ceramics; Periodicals; Electronic journals; 666
• DOI: 10.1016/j.ceramint.2023.01.223
• Languages: English
• ISSNs: 0272-8842

Abstract

Abstract: A series of Ca3- x LiMgV3 O12 : x Sm 3+ (CLMV:Sm 3+ ) phosphors were elaborated to provide new optical temperature sensing materials. Their structures, morphologies, and luminescent properties were comprehensively explored. The energy transfer from VO4 3− to Sm 3+ was illustrated using luminescent spectra and luminescent decay curves. The different temperature dependent emission and excitation characters of VO4 3− group and 4f-4f transition of Sm 3+ were used to design a three-mode optical temperature sensor. Temperature dependent fluorescence intensity ratio ( FIR ) value of I (Sm 3+ ) and I (VO4 3− ), Commission International de L'Eclairage (CIE) coordinate, and excitation intensity ratio ( EIR ) value of I 383nm / I 405nm in excitation spectra are the three sensing modes. The maximum value of absolute sensitivity ( S A ) and relative sensitivity ( S R ) in FIR mode are 9.11 %K −1 at 513 K and 1.99 %K −1 at 357 K, respectively. And S R is bigger than 1.21 %K −1 between 303 and 513 K, which is superior to that of thermometry based on Er 3+ doped upconversion phosphors. The maximum S R in EIR mode is 1.39 %K −1 at 393 K. Our results indicate that CLMV:Sm 3+ phosphors might have potential application as optical thermometry with self-reference character.