Optical thermometry based on up-conversion luminescence behavior of self-crystallized K3YF6:Er3+ glass ceramics
| Autor: | ZhongXiu Wang, YunLe Wei, Hai Guo, Xiaoman Li, Jiangkun Cao, LiPing Chen |
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| Rok vydání: | 2016 |
| Předmět: |
Lanthanide
Materials science Analytical chemistry Mineralogy 02 engineering and technology Crystal structure 010402 general chemistry 01 natural sciences law.invention law Activator (phosphor) Materials Chemistry Ceramic Electrical and Electronic Engineering Crystallization Spectroscopy Instrumentation Doping Metals and Alloys 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials visual_art visual_art.visual_art_medium 0210 nano-technology Luminescence |
| Zdroj: | Sensors and Actuators B: Chemical. 224:507-513 |
| ISSN: | 0925-4005 |
| DOI: | 10.1016/j.snb.2015.10.087 |
| Popis: | Self-crystallized fluoride K3YF6 glass ceramics (GC) doped with lanthanide ions were successfully manufactured via traditional melt-quenching route with further heat-treatment. Different from common cases previously reported, nano-crystals have already formed after melt-quenching, which is beneficial to the realization of controllable glass crystallization to some degree for affording desirable nano-crystal size and activator partition. Optical spectroscopy analysis demonstrates the partition of the active centers into the K3YF6 crystalline lattice with low phonon energy. Hence, luminescence of GC doped with lanthanide ions is highly enhanced after further heat-treatment. Moreover, the temperature-dependent green up-conversion emissions of Er3+ doped GC were investigated by the fluorescence intensity ratio (FIR) of the thermally coupled emitting states (2H11/2 and 4S3/2). The sensitivity is 1.27% K−1 at 300 K and the obtained high energy difference (ΔE) is 793 cm−1. Such Er3+ doped K3YF6 GC may present potential application in optical temperature sensors. |
| Databáze: | OpenAIRE |
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