dc.contributor.author |
Martínez-Martínez, R |
|
dc.contributor.author |
Ramos-Brito, F |
|
dc.contributor.author |
Caldino, U |
|
dc.contributor.author |
Falcony, C |
|
dc.contributor.author |
García-Hipolito, M |
|
dc.contributor.author |
Hernández-Pozos, JL |
|
dc.date.accessioned |
2011-01-22T10:26:31Z |
|
dc.date.available |
2011-01-22T10:26:31Z |
|
dc.date.issued |
2005 |
|
dc.identifier.issn |
0953-8984 |
|
dc.identifier.uri |
http://hdl.handle.net/11154/1433 |
|
dc.description.abstract |
Al2O3:Ce3+:Mn2+ films deposited by the spray pyrolysis technique show blue and red emissions under ultraviolet light excitation. The blue emission is due to the de-excitation of Ce3+ ions from their excited state 5d to the split ground state F-2. The usually weak red emission attributed to 3d -> 3d de-excitation of Mn2+ is enhanced through an efficient energy transfer from Ce3+ to Mn2+ ions. The most probable mechanism of Ce3+ -> Mn2+ energy transfer is found to be electric dipole-quadrupole interaction. The quantum efficiency of this transfer was estimated as being near to 100%, which makes these films interesting phosphors for the design of luminescent layers in flat-panel displays with two-colour emission. |
en_US |
dc.language.iso |
en |
en_US |
dc.title |
Blue and red photoluminescence from Al2O3 : Ce3+: Mn2+ films deposited by spray pyrolysis |
en_US |
dc.type |
Article |
en_US |
dc.identifier.idprometeo |
1577 |
|
dc.identifier.doi |
10.1088/0953-8984/17/23/016 |
|
dc.source.novolpages |
17(23):3647-3656 |
|
dc.subject.wos |
Physics, Condensed Matter |
|
dc.description.index |
WoS: SCI, SSCI o AHCI |
|
dc.relation.journal |
Journal of Physics-Condensed Matter |
|