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Giant enhancement of anti-quenching upconversion luminescence in Sc2W3O12:Er3+/Yb3+ phosphors for temperature sensing.
- Source :
- Journal of Materials Chemistry C; 6/28/2024, Vol. 12 Issue 24, p8977-8986, 10p
- Publication Year :
- 2024
-
Abstract
- Although negative thermal expansion (NTE) materials provide a new strategy to overcome the thermal-quenching phenomenon among rare earth doped luminescent materials, the overall weak upconversion luminescence still restricts their application in the field of optical temperature sensing. Herein, giant enhancement of anti-quenching upconversion luminescence is achieved in the NTE Sc<subscript>2</subscript>W<subscript>3</subscript>O<subscript>12</subscript>:Er<superscript>3+</superscript>/Yb<superscript>3+</superscript> phosphors by (KMg)<superscript>3+</superscript> impurity doping, and the phosphors are used for the construction of an all-fiber temperature sensing (AFTS) system. Compared to the upconversion luminescence of the Sc<subscript>2</subscript>W<subscript>3</subscript>O<subscript>12</subscript>:Er<superscript>3+</superscript>/Yb<superscript>3+</superscript> phosphors at room temperature, the synergistic effect of impurity doping and NTE characterstics results in a 6000-fold enhancement of the upconversion luminescence of the (KMg)<superscript>3+</superscript> doped Sc<subscript>2</subscript>W<subscript>3</subscript>O<subscript>12</subscript>:Er<superscript>3+</superscript>/Yb<superscript>3+</superscript> phosphors at 573 K. A single-point tip temperature sensor was constructed based on the fluorescence luminescence intensity ratio (FIR) technology and the corresponding self-calibrated curves were obtained with a regression coefficient of 0.9996. The potential application of the constructed AFTS system was demonstrated in the real-time temperature monitoring of a CPU chip and a thermostat bath. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 20507526
- Volume :
- 12
- Issue :
- 24
- Database :
- Complementary Index
- Journal :
- Journal of Materials Chemistry C
- Publication Type :
- Academic Journal
- Accession number :
- 178006076
- Full Text :
- https://doi.org/10.1039/d4tc01673d