A. Biswas et al., SOL-GEL SYNTHESIS OF PR-DOPED SILICA GLASSES, Materials science & engineering. B, Solid-state materials for advanced technology, 41(3), 1996, pp. 329-332
Pr-doped silica gels with Pr-content up to 10 wt.% have been prepared
using a colloidal-polymeric as well as polymeric sol-gel method. The g
els densified at 1150 degrees C show absorption and fluorescence spect
ra similar to that of melt or CVD prepared Pr-doped silica glasses. St
ructural properties of the densified gels have also been studied. Al c
o-doping increases the fluorescence intensitiy of Pr3+ ions and shifts
the maxima to the shorter wavelength side. Copyright (C) 1996 Elsevie
r Science S.A.