Material for organic electroluminescent element and organic electroluminescent element using the same
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United States of America Patent
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Apr 28, 2020
Grant Date -
Jun 30, 2016
app pub date -
Aug 25, 2014
filing date -
Sep 30, 2013
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Abstract
Provided are a material for an organic EL device that improves the luminous efficacy of a device, sufficiently secures its driving stability, and has a simple construction, and an organic EL device using the material. The material for an organic EL device is formed of a carborane compound having a structure in which a dibenzofuranyl group is bonded to a carborane ring. In addition, the material for an organic EL device is preferably used in a light-emitting layer, an electron-transporting layer, or a hole-blocking layer of an organic electroluminescent device having the light-emitting layer between an anode and a cathode laminated on a substrate. Also disclosed is an organic electroluminescent device using the material for an organic EL device as a host material for a light-emitting layer containing a phosphorescent light-emitting dopant and the host material.
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