Method for burning synthesis of ytterbium and erbium -codoped conversion luminescent material on sodium yttrium fluoride
Title：
Method for burning synthesis of ytterbium and erbium -codoped conversion luminescent material on sodium yttrium fluoride
Application Number：
 200410086572
Application Date：
 2004/10/26
Announcement Date：
 2005/06/01
Pub. Date：
 2007/02/07
Publication Number：
 1621492
Announcement Number：
 1298808
Grant Date：
 2007-2-7
Granted Pub. Date：
 2007-2-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 C09K 11/85
Applicant(s)：
 Tsinghua University
Inventor(s)：
 Huang Minwen, Zhang Xinrong
Key Words：
 burning synthesis, ytterbium, erbium,codoped,conversion luminescent material,sodium yttrium fluoride
Abstract：
 The present invention discloses the combustion synthesis process of Yb and Er co-doped up-conversion sodium fluoroyttriumide fluorescent material. The precursor is first prepared with sodium fluoride as matrix, YCl3 solution, YbCl3 solution and ErCl3 solution through co-precipitation process; boric acid and urean are then mixed with the precursor suspension homogeneously; and the mixture is poured into crucible, shifted fast into a muffle furnace and heated at 550-600 deg.c for about 10 min to form the Yb and Er co-doped up-conversion sodium fluoroyttriumide fluorescent material.
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