Organic Electroluminescent Element and Manufacturing Method Thereof, and Phosphorus-Containing Organic Compound and Manufacturing Method Thereof
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United States of America Patent
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Issued Date -
Dec 20, 2007
app pub date -
Apr 20, 2005
filing date -
Apr 20, 2004
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Abandoned
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Abstract
An organic electroluminescent element comprising an anode, a cathode and a plurality of organic compound layers sandwiched between the anode and cathode, the organic compound layers including: a hole-transporting layer made of an organic compound insoluble in alcohols; and an electron-transporting layer formed on the hole-transporting layer by a wet method, the electron-transporting layer being made of a phosphorus-containing organic compound soluble in the alcohols.
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