Luminescence and energy transfer in Eu2+, Mn2+ co-doped Ca2SrNaLa(PO4)(3)F

作者：Hu Shanshan; Tang Wanjun^*

来源：Optical Materials, 2013, 36(2): 238-241.

DOI：10.1016/j.optmat.2013.09.001

• Optical materials
• Chemical synthesis
• Luminescence
• Energy transfer

A new compound Ca2SrNaLa(PO4)(3)F, isotypic with hexagonal Ca(Sr,Na,Ca)(Ca,Sr,Ce)(3)(PO4)(3)F, is reported. Its cell parameters have been determined from X-ray powder diffraction data. Crystallization occurs in the hexagonal space group P6(3) (No. 173) with a = 9.515(1) angstrom, c = 7.028(1) angstrom, and Z = 2. Eu2+ and Mn2+ activated Ca2SrNaLa(PO4)(3)F phosphors have been prepared. The energy transfer of Eu2+ -> Mn2+ has been investigated. The resonant type energy transfer from Eu2+ to Mn2+ has been demonstrated, and the energy transfer efficiency has also been calculated according to their PL decay curves. A color-tunable emission in Ca2SrNaLa(PO4)(3)F phosphors can be realized by Eu2+ -> Mn2+ energy transfer. White light can be achieved in a single-phased Ca2SrNaLa(PO4)(3)F host by co-doping Eu2+ and Mn2+ with CIE (0.32, 0.31). Our results demonstrate that the potential application of these phosphors in solid-state lighting and (or) other areas.

• 出版日期2013-12
• 单位中南民族大学