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Yellow lighting upconversion from Yb3+/Ho3+ co-doped CaMoO4

Title
Yellow lighting upconversion from Yb3+/Ho3+ co-doped CaMoO4
Author
심광보
Keywords
Optical materials; Luminescence; Optical properties
Issue Date
2012-08
Publisher
Elsevier Science B.V., Amsterdam
Citation
Materials research bulletin, 2012, 47(8), P.1991-1995
Abstract
Yellow upconversion (UC) luminescence is observed in Ho3+/Yb3+ co-doped CaMoO4 synthesized by complex citrate-gel method. Under 980 nm excitation. Ho3+/Yb3+ co-doped CaMoO4 exhibited yellow emission based on green emission near 543 nm generated by F-4(4), S-5(2) -> (5)I8 transition and strong red emission around 656 nm generated by F-5(5) -> I-5(8) transition, which are assigned to the intra 4f transitions of Ho3+ ions. The optimum doping concentration of Ho3+ and Yb3+ was investigated for highest upconversion luminescence. Based on pump power dependence, upconversion mechanism of Ho3+/Yb3+ co-doped CaMoO4 was studied in detail.
URI
https://www.sciencedirect.com/science/article/pii/S0025540812002176?via%3Dihubhttp://hdl.handle.net/20.500.11754/48814
ISSN
0025-5408
DOI
10.1016/j.materresbull.2012.04.014
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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