Descripción
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Abstract: The preparation of LiNbO3:Er3+/Yb3+ nanocrystals and their up-conversion properties have been studied. It is demonstrated that polyethyleneimine- (PEI) assisted dispersion procedures allow obtaining stable aqueous LiNbO3:Er3+/Yb3+ powder suspensions, with average size particles well below the micron range (100-200 nm) and the isoelectric point of the suspension reaching values well above pH 7. After excitation of Yb3+ ions at a wavelength of 980 nm, the suspensions exhibit efficient, and stable, IR-to-visible (green and red) up-conversion properties, easily observed by the naked eye, very similar to those of the starting crystalline bulk material. | |
Internacional
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Si |
JCR del ISI
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Si |
Título de la revista
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Applied Physics B-Lasers And Optics |
ISSN
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0946-2171 |
Factor de impacto JCR
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2,239 |
Información de impacto
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Volumen
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102 |
DOI
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WOS:000287746700029 |
Número de revista
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3 |
Desde la página
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651 |
Hasta la página
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658 |
Mes
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SIN MES |
Ranking
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OPTICS 77 15 Q1 PHYSICS, APPLIED 125 36 Q2 |