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Preparation and characterization of uniform, spherical particles of Y2O2S and Y2O2S:Eu

โœ Scribed by Delgado da Vila, Ligia; Stucchi, Elizabeth Berwerth; Davolos, Marian Rosaly

Book ID
120607991
Publisher
Royal Society of Chemistry
Year
1997
Tongue
English
Weight
132 KB
Volume
7
Category
Article
ISSN
0959-9428

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โœ Bing-Ming Cheng; Chang-Kui Duan; Peter A. Tanner ๐Ÿ“‚ Article ๐Ÿ“… 2009 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 150 KB

The vacuum ultraviolet excitation spectrum and visible luminescence spectra of Y 2 O 2 S:Eu 3+ (10 at.%) and Eu 2 O 2 S are reported and assigned. Excitation bands peaking at 312 nm (3.97 eV) and 244 nm (5.08 eV) are assigned to S-3p and O-2p to Eu 3+ charge transfer absorptions. The bands peaking a