Material for organic electroluminescence element and organic electroluminescence element using the same, and method for manufacturing organic electroluminescence element
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United States of America Patent
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Mar 21, 2017
Grant Date -
Feb 7, 2013
app pub date -
Mar 30, 2011
filing date -
Mar 31, 2010
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Abstract
A material for organic electroluminescence element, including: a phosphorescent compound; and a discotic liquid-crystalline host compound, wherein the phosphorescent compound has an aspect ratio of molecule core diameter to molecule core thickness (molecule core diameter/molecule core thickness) of at least 3, and wherein a size ratio of the molecular radius of the phosphorescent compound to the molecular radius of the discotic liquid-crystalline host compound (molecular radius of the phosphorescent compound/molecular radius of the discotic liquid-crystalline host compound) is 0.8 to 1.2.
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