Premium
Efficient VUV sensitization of Eu 3+ emission by Tb 3+ in potassium rare‐earth double phosphate
Author(s) -
Mikhailik V. B.,
Kraus H.,
Dorenbos P.
Publication year - 2009
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.200802211
Subject(s) - luminescence , ion , excitation , vacuum ultraviolet , potassium , absorption (acoustics) , chemistry , caesium , ultraviolet , radiation , materials science , photochemistry , optoelectronics , atomic physics , inorganic chemistry , optics , physics , organic chemistry , quantum mechanics , composite material
The luminescence properties of K 3 Tb(PO 4 ) 2 activated by Eu 3+ were studied at excitation over the 120–300 nm wavelength range. It is demonstrated that Tb 3+ ions, exhibiting a strong absorption band in the vacuum‐ultraviolet (VUV), can provide efficient sensitisation of Eu 3+ 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 GmbH & Co. KGaA, Weinheim)