Interstitial tuning of Y3+ sites with Li+ sensitized improved Tb3+emission for WLED application
A series of wide-ranging single phase YPO4:xTb3+ phosphor was prepared by wet chemical route. In order to maximise the use of YPO4:Tb3+ nanoparticles in WLED, this work used Li+ sensitization to interstitially modify the particles' photoluminescence intensity. The prepared nanoparticles are cha...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-01-01
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| Series: | Next Nanotechnology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2949829524000408 |
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| Summary: | A series of wide-ranging single phase YPO4:xTb3+ phosphor was prepared by wet chemical route. In order to maximise the use of YPO4:Tb3+ nanoparticles in WLED, this work used Li+ sensitization to interstitially modify the particles' photoluminescence intensity. The prepared nanoparticles are characterized using X-Ray diffraction, FT-IR, TEM and Photoluminescence. The annealing effect on the particle size, morphology and its luminescence intensities are studied. This increased crystallinity led to a rise in the photoluminescence intensity of the nanoparticles. YPO4:Tb3+ nanoparticles' excitation and emission spectra were shown by photoluminescence investigations. Optical absorption and emission spectra confirmed all peaks associated to various transitions of the Tb3+ ions. Because of the increased crystallinity and decreased water content, the emission intensity rose with the annealing temperature. Li+ co-doping increased the emission intensity even more; where the emission intensity showed seven times. The results emphasise the significance of Li+ sensitization and annealing temperature in adjusting the luminous properties for possible uses in WLED and other display systems |
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| ISSN: | 2949-8295 |