In:
MRS Proceedings, Springer Science and Business Media LLC, Vol. 621 ( 2000)
Abstract:
SrTiO 3 crystals containing varying concentrations of Pr and Ga were grown by a standard floating zone method and their photoluminescence characteristics were investigated. It was found that only a small fraction of Pr ions added are incorporated in the lattice. When the Ga ions are co-doped, the solubility of Pr ions is increased considerably. Comparing the ionic sizes of the host and dopants, it seems that the increase of solubility of Pr by Ga co-doping is due to charge compensation achieved by the additional Ga 3+ . The addition of Ga in Pr - activated SrTiO 3 resulted also in a considerable enhancement of Pr 3+ emission band at 615 nm. This result is attributed to the hole trapping effect of Ga 3+ ions.
Type of Medium:
Online Resource
ISSN:
0272-9172
,
1946-4274
DOI:
10.1557/PROC-621-Q4.6.1
Language:
English
Publisher:
Springer Science and Business Media LLC
Publication Date:
2000
