NaNbO3:Pr3+: a new red phosphor showing persistent luminescence

The Pr3+-doped NaNbO3 perovskite is introduced as a new red phosphor excitable in the near UV region at around 350 nm. A bright single red emission is observed at room temperature and ascribed to transitions between the 1D2 excited state and the ground state 3H4 of Pr3+ ions. This peculiar behavior...

Full description

Saved in:
Bibliographic Details
Published inJournal of physics. Condensed matter Vol. 21; no. 2; pp. 025901 - 025901 (6)
Main Authors Boutinaud, P, Sarakha, L, Mahiou, R
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 14.01.2009
Institute of Physics
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other solid inorganic materials
Photoluminescence
Physics
Doping
Photoluminescence
Sodium niobates
Electron delocalization
Perovskites
Excited states
Luminescence decay
Ultraviolet radiation
Photoionization
Phosphors
Praseodymium additions
Luminescence quenching
Charge transfer
Glow discharges
Online AccessGet full text

Cover

More Information
Summary:The Pr3+-doped NaNbO3 perovskite is introduced as a new red phosphor excitable in the near UV region at around 350 nm. A bright single red emission is observed at room temperature and ascribed to transitions between the 1D2 excited state and the ground state 3H4 of Pr3+ ions. This peculiar behavior is related to the presence of a low-lying intervalence charge transfer state that contributes to quench the emission from the otherwise emitting 3P0 level. Red afterglow is also evidenced in NaNbO3:Pr3+. A preliminary model is discussed to clarify the afterglow mechanism.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0953-8984
1361-648X
DOI:10.1088/0953-8984/21/2/025901