Materials Research Bulletin, Vol.41, No.8, 1468-1475, 2006
The VUV-vis spectroscopic properties of phosphors Ca(3)Gd2((1-x))Ln(2x)(BO3)(4) (Ln(3+) = Ce, Sm, Eu, Tb)
The spectroscopic properties in VUV-vis range for phosphors calcium and gadolinium double borate Ca3Gd2(BO3)(4) doped with rare-earth ions Ce3+, Sm3+, Eu3+ and Tb3+ were investigated. The host-related absorption, the f-d transitions of Ce3+ and Tb3+, as well as the charge transfer transitions of Sm3+ and Eu3+ in the host lattice are assigned and discussed. The CIE chromaticity coordinates for Eu3+- and Tb3+-activated phosphors are calculated. (C) 2006 Elsevier Ltd. All rights reserved.
Keywords:inorganic compounds;luminescence