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2009
Conference Paper
Titel
Novel transport materials for high performance OLEDs
Abstract
We show that efficiency, voltage and lifetime cannot be optimized simultaneously in blue fluorescent OLEDs. With novel ETMs, any desired trade-off In performance can be obtained. In an optimized system, 8.5% EQE were achieved. With thick ETLs, we obtain low driving voltage and improved color purity in green phosphorescent OLEDs.