Luminescence of K2BaCa(PO4)2: Ce3+, Tb3+ dual-emitting phosphor and its application as ratiometric optical thermometer
Source abstract
Abstract
Abstract A new dual-emitting phosphor K2BaCa(PO4)2: Ce3+, Tb3+ (KBCP: Ce3+, Tb3+) was successfully synthesized and designed to put into application of ratiometric temperature sensing. Under single UV excitation, the developed phosphors shows both Ce3+ violet and Tb3+ green emission mainly at 360 and 542 nm, respectively. The Ce3+-Tb3+ energy transfer process was analyzed by the variation of emission spectra and Ce3+/Tb3+ decay lifetimes. The remarkable thermal stability has also been tested, indicating that the intensity at 200 °C is still above 85% of the original intensity. Furthermore, the emission intensity ratio between 360 and 542 nm of KBCP: Ce3+, Tb3+ is found to have a good linear relationship with temperature (R2 > 0.993), and the corresponding sensitivity temperature resolution is 0.35% K−1 and >0.02 K, respectively. Thus, this novel dual-emitting phosphor can be used as a potential luminescent thermometer.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Radiation Detection and Scintillator Technologies · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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