Metal-assisted delayed fluorescent materials as co-host materials for fluorescent OLEDs
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United States of America Patent
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Mar 20, 2018
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Aug 21, 2015
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Aug 22, 2014
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Abstract
A light emitting device includes a first electrode, a hole transporting layer in contact with the first electrode, a second electrode, an electron transporting layer in contact with the second electrode; and an emissive layer between the hole transporting layer and the electron transporting layer. The emissive layer includes a metal-assisted delayed fluorescent (MADF) emitter, a fluorescent emitter, and a host, and the MADF emitter harvests electrogenerated excitons and transfers energy to the fluorescent emitter.
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