Efficient VUV sensitization of Eu3+ emission by Tb3+ in potassium rare-earth double phosphate
The luminescence properties of K3Tb(PO4)2 activated by Eu3+ were studied at excitation over the 120-300 nm wavelength range. It is demonstrated that Tb3+ ions, exhibiting a strong absorption band in the vacuum-ultraviolet (VUV), can provide efficient sensitisation of Eu3+ emission in this wave lengt...
| Main Authors: | , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2009
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| Summary: | The luminescence properties of K3Tb(PO4)2 activated by Eu3+ were studied at excitation over the 120-300 nm wavelength range. It is demonstrated that Tb3+ ions, exhibiting a strong absorption band in the vacuum-ultraviolet (VUV), can provide efficient sensitisation of Eu3+ emission in this wave length range, giving rise to intense red luminescence at 150 nm excitation. A proof is given for the concept of VUV sensitisation enabling the engineering of luminescence materials with enhanced conversion efficiency of VUV radiation into visible light. © 2009 WILEY-VCH Verlag GmbHandCo. KGaA, Weinheim. |
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