Color-tunable up-conversion emission in Y(2)O(3):Yb(3+), Er(3+) nanoparticles prepared by polymer complex solution method

ABSTRACT: Powders of Y(2)O(3) co-doped with Yb(3+) and Er(3+) composed of well-crystallized nanoparticles (30 to 50 nm in diameter) with no adsorbed ligand species on their surface are prepared by polymer complex solution method. These powders exhibit up-conversion emission upon 978-nm excitation wi...

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Detalles Bibliográficos
Autores principales: Lojpur, Vesna M, Ahrenkiel, Phillip S, Dramićanin, Miroslav D
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2013
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3765681/
https://www.ncbi.nlm.nih.gov/pubmed/23522083
http://dx.doi.org/10.1186/1556-276X-8-131
Descripción
Sumario:ABSTRACT: Powders of Y(2)O(3) co-doped with Yb(3+) and Er(3+) composed of well-crystallized nanoparticles (30 to 50 nm in diameter) with no adsorbed ligand species on their surface are prepared by polymer complex solution method. These powders exhibit up-conversion emission upon 978-nm excitation with a color that can be tuned from green to red by changing the Yb(3+)/Er(3+) concentration ratio. The mechanism underlying up-conversion color changes is presented along with material structural and optical properties. PACS: 42.70.-a, 78.55.Hx, 78.60.-b

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