| 发明名称 |
PREPARATION METHOD OF GREEN FLUORESCENT SUBSTANCE FOR PDP |
| 摘要 |
<p>PURPOSE: A method for preparing a green fluorescent substance for PDP (plasma display panel) is provided, in order to reduce reaction time and decay time without deterioration of the luminescence intensity compared with an already-known green fluorescent substance for PDP by increasing the concentration of Mn-Mn pairs on the surface of a fluorescent substance. CONSTITUTION: The method comprises the steps of mixing ZnO and SiO2 and heating the mixture to prepare Zn2SiO4 matrix; and mixing the obtained Zn2SiO4 with MnO and heating the mixture to prepare Zn(2-a)MnaSiO4, wherein 0<z<=0.1, and 0<a<=0.1. Preferably the molar ratio of ZnO to SiO2 is 1.5-1.9 : 1 and the heating time depends on the composition ratio of SiO2 and ZnO in the first step. Preferably the heating is carried out at a temperature of 1,250-1,350 deg.C in the two steps.</p> |
| 申请公布号 |
KR20030071219(A) |
申请公布日期 |
2003.09.03 |
| 申请号 |
KR20020010817 |
申请日期 |
2002.02.28 |
| 申请人 |
KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
BAE, HYEON SUK;BYUN, JONG HONG;KIM, CHANG HONG;KIM, HONG RYEOL;KIM, SANG BOK;YOO, BYEONG YONG |
| 分类号 |
C09K11/59 |
主分类号 |
C09K11/59 |
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