Organic light-emitting devices with a mixed layer acting as a hole transport and as an emitting/electron transport layer
2007
The electrical and the optical properties of organic light-emitting devices (OLEDs) with a mixed layer acting as a hole transport layer and as an emitting layer/electron transport layer were investigated. The OLEDs with a mixed layer showed the highest efficiency, and the emitting color of the OLEDs was pure yellow. The enhancement of the luminous efficiency in the OLEDs with a mixed layer was attributed to a decrease in hole mobility. © 2006 Elsevier B.V. All rights reserved.
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