Effects of site substitutions and concentration on upconversion luminescence of Er(3+)-doped perovskite titanate.
Opt Express
; 19(3): 1824-9, 2011 Jan 31.
Article
en En
| MEDLINE
| ID: mdl-21368996
ABSTRACT
Upconversion photoluminescence (PL) of Er(3+)-doped BaTiO3 (BTO) with perovskite ABO3 structure is studied in terms of Er3+ substitutions for Ba (A-) and Ti (B-site) with different Er3+ doping concentrations. PL quenching with an increase Er3+ doping concentration is investigated based on the structural change and energy transfer of cross-relaxation process in BTO Er, i.e. (2)H(11/2) + (4)I(15/2) â (4)I(9/2) + (4)I(13/2). Temperature dependence of the PL in BTO Er is revealed, which is associated with phase transitions of BTO host. The results imply that the emission from substituted Er3+ ions may be used as a structural probe for the ferroelectric titanates.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Óxidos
/
Titanio
/
Compuestos de Calcio
/
Cristalización
/
Erbio
/
Mediciones Luminiscentes
Idioma:
En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2011
Tipo del documento:
Article
País de afiliación:
Hong Kong