AI Article Synopsis
- A new white-light-emitting phosphor, SrLa(PO):Eu, Mn, was created using a solid-state synthesis method and excited by near-ultraviolet light.
- Researchers studied its luminescence properties and energy transfer mechanisms through various experiments, including photoluminescence spectra and decay curves.
- By adjusting the ratios of Europium (Eu) and Manganese (Mn), they achieved a cold white light with specific color metrics and a maximum energy transfer efficiency of 55.6% as Mn concentration increased.
Article Abstract
A novel, near-ultraviolet-excited white-light-emitting phosphor SrLa(PO):Eu, Mn was synthesized by the solid-state method. Luminescence properties and the energy transfer mechanism were investigated in detail by photoluminescence spectra and decay curves. With the energy transfer between Eu and Mn, a cold white light with chromaticity coordinates of (0.2790, 0.2273), correlated color temperature of 6501 K, Ra of 70, and external quantum efficiency of 35.5% was realized by changing the ratios of Eu and Mn in the SrLa(PO):Eu, Mn phosphors. Resonant energy transfer from Eu to Mn ions has been demonstrated to be a dipole-dipole mechanism in SrLa(PO). The energy transfer efficiency increases with Mn concentration increasing, and reaches a maximum of 55.6%.
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| http://dx.doi.org/10.1364/AO.56.001167 | DOI Listing |
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