Purification process of electroluminescent material, electroluminescent material and electroluminescent device
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United States of America Patent
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Aug 14, 2012
Grant Date -
Nov 29, 2007
app pub date -
Jun 4, 2004
filing date -
Jun 5, 2003
priority date (Note) -
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Abstract
Objects of the present invention are to provide a purification process that enables Pd and P to be removed effectively, and to provide an electroluminescent material and an electroluminescent device obtained by employing the process. The present invention relates to a process for purifying an electroluminescent material, the process involving treating, with an oxidizing agent and then with a column, an electroluminescent material that contains Pd and/or P as impurities so as to remove the Pd and/or P.
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