Abstract
We report on photoluminescence of as a potential red-emitting phosphor for multichromatic light sources. If excited with blue light, photoluminescence of this compound spans the spectral range of about 600 to . Static and dynamic spectral data reveal the presence of two distinct emission centers. Based on bond covalency and emission lifetime, luminescence can clearly be assigned to ions on and lattice sites, respectively. Energy transfer is observed from to . Transfer efficiency, estimated from the lifetimes of the excited states, increases with increasing dopant concentration.
© 2010 Optical Society of America
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