Eu3+ and Dy3+-activated LaAlO3 phosphor for solid-state lighting
| Autor: | S.K. Ramteke, V. V. Shinde, A.N. Yerpude, S.J. Dhoble, N. S. Kokode |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Diffraction Materials science Photoluminescence Scanning electron microscope Analytical chemistry Phosphor Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention Solid-state lighting law Excited state 0103 physical sciences Particle size Electrical and Electronic Engineering Excitation |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 31:6506-6509 |
| ISSN: | 1573-482X 0957-4522 |
| Popis: | Rare earth Eu3+ and Dy3+-activated LaAlO3 phosphor were prepared by wet chemical method. The prepared phosphors were characterized by, X-ray diffraction(XRD) for phase purity, scanning electron microscopy (SEM) for morphology and photoluminescence (PL) emission and excitation spectra. SEM analysis does not reveal the crystal structure; however, it shows that the prepared phosphor has irregular morphology with particle size in micron range. Under both 395 nm and 466 nm excitation, LaAlO3:Eu3+ phosphor shows emission at 593 nm and 614 nm. LaAlO3:Dy3+ phosphor shows emission at 484 nm and 575 nm when excited by wavelength of 351 nm. The synthesized phosphors have mercury-free excitation, and therefore, prepared phosphor might be applicable in environmental-friendly solid-state lighting. |
| Databáze: | OpenAIRE |
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