Use of LiF flux in the preparation of Ca3Sc2Si3O12:Ce3+ phosphor by sol-combustion method
| Autor: | Yibo Chen, Limei Tan, Jiayi Li, Suiwen Zeng, Haihua Fan, Jingrong Feng |
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| Rok vydání: | 2014 |
| Předmět: |
Photoluminescence
Fabrication Materials science business.industry Organic Chemistry Analytical chemistry Flux Phosphor Combustion Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Inorganic Chemistry law Phase (matter) Optoelectronics Electrical and Electronic Engineering Physical and Theoretical Chemistry business Spectroscopy Diode Light-emitting diode |
| Zdroj: | Optical Materials. 37:464-469 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/j.optmat.2014.07.007 |
| Popis: | LiF flux was added when prepare Ca3Sc2Si3O12:Ce3+ phosphors with sol-combustion method using urea as a fuel and chelating agent. Investigation of phase, morphology and photoluminescence of the phosphors reveals that this kind of method can decrease the phase-forming temperature by 400–500 °C and the phosphors show more uniform morphology and more excellent photoluminescence properties compared to conventional solid-state method. As one of the most important parameters for phosphors used in white light emitting diodes, the thermal quenching properties of the prepared samples are compared and discussed. The fabrication of single-color light emitting diodes show the Ca3Sc2Si3O12:Ce3+ phosphor prepared by sol-combustion method with LiF flux can be considered as a more promising high efficiency candidate used for white light emitting diodes than the phosphor made by solid-state method. |
| Databáze: | OpenAIRE |
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