Artículo
LaPO4:Er microspheres with high NIR luminescent quantum yield
Autor/es | García Sevillano, Jorge
Cantelar, Eugenio Justo Erbez, Ángel J. Ocaña Jurado, Manuel Cussó, Fernando |
Departamento | Universidad de Sevilla. Departamento de Química Inorgánica |
Fecha de publicación | 2013 |
Fecha de depósito | 2018-05-07 |
Publicado en |
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Resumen | Er-doped LaPO4 microspheres have been synthesized by spray pyrolysis and the near infrared (NIR) properties have been characterized. It has been found that, following an adequate post-annealing treatment, the emission ... Er-doped LaPO4 microspheres have been synthesized by spray pyrolysis and the near infrared (NIR) properties have been characterized. It has been found that, following an adequate post-annealing treatment, the emission properties are remarkably improved. The NIR luminescence intensity is highly enhanced and its decay time increases to a value almost coincident with the reported radiative lifetime, which implies that the quantum yield approaches η ≈ 100%. This improvement in luminescence characteristics is probably related to the suppression of residual OH- radicals, that otherwise act as NIR luminescence quenchers, and to the increase in material's crystallinity |
Agencias financiadoras | Junta de Andalucía Ministerio de Ciencia e Innovación (MICIN). España |
Identificador del proyecto | FQM6090
AT2009-14102 P2009/TIC-1476 |
Cita | García Sevillano, J., Cantelar, E., Justo Erbez, Á.J., Ocaña Jurado, M. y Cussó, F. (2013). LaPO4:Er microspheres with high NIR luminescent quantum yield. Materials Chemistry and Physics, 138, 666-671. |
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