1. Photoluminescent Properties of Na+, Bi3+ Co-Doped CaWO4: Eu3+ Phosphor for PDPs
- Author
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Lin Lin Peng and Bi Tao Liu
- Subjects
Photoluminescence ,Materials science ,business.industry ,Energy transfer ,Doping ,Analytical chemistry ,Phosphor ,General Medicine ,Plasma display ,law.invention ,Ion ,law ,Excited state ,Optoelectronics ,business ,Excitation - Abstract
The photoluminescent properties of Na, Bi co-doped CaWO4:Eu3+ phosphor under vacuum ultraviolet (VUV) region excited was investigated. A red emission of CaWO4:Eu3+ can be observed under 147 nm excitation. It was also found that the photoluminescence intensity of Na doped CaWO4:Eu3+ would be enhanced than the un-doped phosphors due to Na+ ions would act as a charge compensator and it can restrict the generation of defects in CaWO4:Eu3+. Additionally, the photoluminescence enhancement of Na+, Bi3+ co-doped CaWO4:Eu3+ should due to the energy transfer between WO42-, Bi3+ and Eu3+, and Bi3+ ions would act as a medium for the energy transfer, via WO42-Bi3+Eu3+. These are expected to be applying in plasma display panels.
- Published
- 2013
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