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US Patent 7781579 Cyclopentaphenanthrene-based compound and organic electroluminescent device using the same

Patent 7781579 was granted and assigned to Samsung on August, 2010 by the United States Patent and Trademark Office.

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Patent abstract

Provided are a cyclopentaphenanthrene-based compound and an organic EL device using the same. The cyclopentaphenanthrene-based compound is easy to prepare and excellent in solubility, color purity, and color stability. The cyclopentaphenanthrene-based compound is useful as a material for forming an organic layer, in particular, a light-emitting layer in an organic EL device, and as an organic dye or an electronic material such as a nonlinear optical material.

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