Conference Program - LOPE-C 2011

SCIENTIFIC CONF. | THURSDAY-JUNE 30, 2011
Track 5
OLEDs and OPV (11:30 am - 01:20 pm) | LOCATION HARMONIE E / LEVEL C2
11:30 am Highly efficient white PIN top and bottom emission OLED for lighting and display applications
Dr Qiang Huang,
Novaled AG, Senior scientist, Customer project manager, Germany
Highly efficient and stable white PIN top and bottom emission OLED devices using novel evaporation processable outcoupling enhancement materials have been
developed for lighting and display applications. In white bottom emission OLED structures, outcoupling enhancement material NET61 is used in the electron transport layer.
Processed on standard glass substrates with a standard MLA outcoupling film, an efficiency enhancement of 1.8 can be achieved with NET61 in a tandem OLED device,
which has a high efficiency of 50.2 lm/W and color coordinates x,y of 0.46/0.41 at a brightness of 1,000 cd/m². Using the same approach in a single-unit fluorescent
device, an efficiency of 37 lm/W is reached. A similar approach using a vacuum processable scattering material in top emission OLED architectures on metal substrate
allows to reach a high efficiency of 36.5 lm/W, CRI of 75 and a color coordinates x,y=0.45/0.41.
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