Fabrication of CaS : Pb blue phosphor by incorporating dimeric Pb2+ luminescent centers

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The CaS:Pb phosphor emitting blue electroluminescence (EL) induced by dimeric Pb2+ luminescent centers was deposited using the controlled atomic layer deposition technique. The effect of the incorporation method and concentration of Pb2+ ions on the color of high luminance CaS:Pb phosphor was investigated at the deposition temperatures of 350 and 400 degreesC. The blue EL emission at 440-445 nm could be maintained with the Pb concentration ranging from 0.6 to 2.5 mol % contrary to the earlier works that had demonstrated very sensitive dependence of color on Pb2+ concentration. The selective incorporation of dimeric Pb2+ ions was attributed to the reactivity of tetraethyl lead as Pb precursor as well as the controlled deposition technique. (C) 2001 American Institute of Physics.
Publisher
AMER INST PHYSICS
Issue Date
2001-02
Language
English
Article Type
Article
Citation

APPLIED PHYSICS LETTERS, v.78, no.6, pp.721 - 723

ISSN
0003-6951
DOI
10.1063/1.1343478
URI
http://hdl.handle.net/10203/201864
Appears in Collection
MS-Journal Papers(저널논문)
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