发明名称 |
Verfahren zur Herstellung eines elektrolumineszenten Phosphors mit langer Lebensdauer |
摘要 |
A method of coating phosphor particles comprises introducing an inert gas into a reaction vessel and charging phosphor particles into the reaction vessel. The reaction vessel is then heated to a reaction temperature and a coating precursor is introduced while the temperature is maintained for a time sufficient to saturate the phosphor particles with the precursor. Thereafter, continuous precursor is introduced into the reaction vessel, along with an oxygen/ozone mixture. The inert gas flow, oxygen/ozone mixture flow and further precursor are supplied for a time sufficient to coat the phosphor particles. |
申请公布号 |
DE69914022(T2) |
申请公布日期 |
2004.06.09 |
申请号 |
DE1999614022T |
申请日期 |
1999.06.02 |
申请人 |
OSRAM SYLVANIA INC., DANVERS |
发明人 |
FAN, CHEN-WEN;GINGERICH, RICHARD G. W.;BENJAMIN, DALE E. |
分类号 |
C09K11/08;C09K11/02;C09K11/56;C23C16/30;H05B33/10;H05B33/12;H05B33/14;(IPC1-7):C09K11/02 |
主分类号 |
C09K11/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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