Light-Emitting Device
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United States of America Patent
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Issued Date -
Oct 4, 2007
app pub date -
May 16, 2005
filing date -
May 24, 2004
priority date (Note) -
Abandoned
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Abstract
A light emitting device comprising: an anode; a cathode; a light emissive layer located between the anode and the cathode, said light emissive layer comprising a metal complex for emitting light; the metal complex comprising the group having general formula I:M-L(I) where M is a metal and L is a ligand, and L comprises Ar which is a substituted or unsubstituted heteroaryl ring; characterized in that the heteroaryl ring contains at least one phosphorous atom.
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