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Upconversion and infrared luminescences in Er3+/Yb3+ codoped Y2O3 and (Y0.9La0.1)2O3 transparent ceramics

✍ Scribed by Shenzhou Lu; Qiuhong Yang; Bin Zhang; Haojia Zhang

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
632 KB
Volume
33
Category
Article
ISSN
0925-3467

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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