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| Effect of Potassium Halide on Properties of Sulfur-Doped Phosphor Based Zinc Oxide |
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Received:August 10, 2011
Revised:August 12, 2011
Accepted:August 15, 2011
Published Online:October 26, 2011
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| DOI：doi：10.3969/j.issn.1007-7545.2012.02.012 |
| KeyWord:potassium halide; ZnO; phosphor; Co-doping of Cl, S |
| Author | Institution |
| LI Ying-yi[sub_s][sub_e] |
南昌大学材料科学与工程学院 南昌大学稀土与微纳功能材料中心,南昌 |
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| Abstract: |
| Chloride and sulfur co-doped ZnO phosphor was prepared by thermal oxidation of zinc sulfide under the assistant of potassium chloride in air atmosphere. The products were characterized with XRD and fluorescent spectrum. The main phase of phosphor was ZnO. It was observed that the photoluminescence (excitation and emission spectra) varied significantly with fluxing agent and calcination temperature. The fluxing agent KX was beneficial to enhance the emission intensity of ZnO phosphors, especially the KCl, and the best calcination temperature was 600~700 ℃. The study on the photoluminescence(PL) spectra of the ZnO phosphors revealed that the green luminescence intensity depended on both Zn sites and Vo , which were formed on the calcinations process and influenced greatly by the co-doping of Cl, S. |
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