| 환원분이기에 따른 ZnO:Zn 형광체의 합성 및 그 형광 특성 |
| 김봉철, 백종봉, 한윤수, 이남양, 이병교1 |
오리온전기(주) 평판연구실
1경북대학교 무기재료공학과 |
| Synthesis of ZnO:Zn Phosphors with Reducing Atmosphere and Their Luminescence Properties |
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| ABSTRACT |
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Cathodoluminescence(CL) properties of ZnO:Zn green phosphor were investigated. ZnO:Zn phosphor was synthesized by varying reducing agents and firing temperatures. ZnS, charcoal and 5% H2 gas mixed with 95% N2 gas(5H2-95N2) were used as the reducing agent and atmosphere. The highest CL intensity of ZnO:Zn phosphor was observed under the condition of 5H2-95N2 atmosphere and firing temperature of 90$0^{circ}C$ for 1h. Charocal and ZnO as reducing agents in the syntehsis of ZnO:Zn phosphor exhibited about 60% and 40%, respectively, of the CL intensity obtained with 5H2-95N2 atmosphere. |
| Key words:
ZnO, phosphor, Cathodoluminescence, 5% $H_2$ gas, Charcoal, ZnS, Reducing agent |
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