Structural and luminescent properties of cerium-ion doped barium borophosphates
Resource
J MATER SCI,41(8),nil-nil.
Journal
J MATER SCI
Journal Volume
41
Journal Issue
8
Pages
-
Date Issued
2006-04
Date
2006-04
Author(s)
Abstract
The effects of synthesis conditions on the luminescence characteristics of Ce3+ in barium borophosphate phosphors are investigated in the present study. Synthesis of cerium-ion doped BaBPO5 in the oxidizing atmosphere results in partial reduction of Ce4+ to Ce3+. The dominant emission at 320 nm arises due to Ce3+ located at Ba 2+ sites without local charge compensation; while, the relatively weak emission at 380 nm is ascribed to Ce3+ substituting at Ba 2+ sites in association with charge compensatory vacancy. The complete reduction of Ce4+ to Ce3+ occurs for the samples heated in the reducing atmosphere. The increased luminescence of BaBPO 5 codoped with cerium and sodium ions is attributed to the reduction in non-radiative energy transfer. © 2006 Springer Science + Business Media, Inc.
Type
journal article