Author:
Lojpur Vesna M,Ahrenkiel Phillip S,Dramićanin Miroslav D
Abstract
Abstract
Powders of Y2O3 co-doped with Yb3+ and Er3+ 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 Yb3+/Er3+ 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
Publisher
Springer Science and Business Media LLC
Subject
Condensed Matter Physics,General Materials Science
Cited by
39 articles.
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