標題: Preparation and cathodoluminescence of ZnO phosphor
作者: Lin, CH
Chiou, BS
Chang, CH
Lin, JD
電子工程學系及電子研究所
Department of Electronics Engineering and Institute of Electronics
關鍵字: zinc oxide phosphors;cathodoluminescent;CIE
公開日期: 30-一月-2003
摘要: Zinc oxide phosphors (ZnO:Zn) were prepared with solid state sintering of ZnO powders with ZnS and screen printed onto ITO-coated glass substrates to form a thin layer. Structural characterization carried out by X-ray diffraction (XRD) analysis suggests that the Zn atoms originated from the decomposition of ZnS, and diffuse to occupy the oxygen vacancies in the host lattice. Both lattice parameters a and c decrease slightly with the increase of ZnS content and/or firing temperature. The cathodoluminescent (CL) peak band varies with ZnS content and ranges from 494 to 508 nm, which is close to the green band of ZnO phosphor. Various mechanisms have been proposed in literatures to explain the origin of the green emission band. Among them, the presence of oxygen vacancies and trace ZnS residue are possible causes for the green emission in this study. CL spectra and CIE color loci suggest that ZnO:Zn phosphor with 5 wt.% ZnS can be. used as a green primary for color picture tubes. (C) 2002 Elsevier Science B.V. All rights reserved.
URI: http://dx.doi.org/10.1016/S0254-0584(02)00120-7
http://hdl.handle.net/11536/28152
ISSN: 0254-0584
DOI: 10.1016/S0254-0584(02)00120-7
期刊: MATERIALS CHEMISTRY AND PHYSICS
Volume: 77
Issue: 3
起始頁: 647
結束頁: 654
顯示於類別:期刊論文


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