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Enhanced near-infrared luminescence in Y2O3:Yb nanocrystals by codoping with Li+ ion

โœ Scribed by Ting Fan; Qinyuan Zhang; Zhonghong Jiang

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
344 KB
Volume
284
Category
Article
ISSN
0030-4018

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โœ Y.Q. Sheng; J. Liu; L.L. Xu; D. Zhai; Z.G. Zhang; W.W. Cao ๐Ÿ“‚ Article ๐Ÿ“… 2010 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 434 KB

The influence of Eu 3+ on the upconversion (UC) fluorescence of Er 3+ in Y 2 O 3 :Er 3+ , Yb 3+ nanocrystals was investigated. Room-temperature UC spectra show that the intensity ratio of red to green lights was increased from 8.6 to 19.3 with 1.0 mol% Eu 3+ doping. Additionally, with the increase o