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Development of New Cathodes for OLED's

Objective
The objective of this project is to develop improved cathodes for use in organic light emitting diodes (OLEDs).

Approach

A major challenge for organic light emitting diode (OLED) technology is to improve electron injection into the organic electroluminescent layer, which limits the efficiency of the device and the luminous flux per unit area. This project aims at overcoming such barriers by developing “structured cathodes” based on functional materials (nanotubes and nanoclusters) with characteristic size smaller than the optical wavelength. The incorporation of such nanostructured cathodes in OLEDs can significantly improve device efficiency by lowering operating voltage, and increase device stability and light extraction.

Contact Information

For more information on this project, please contact:

Steve Johnson
Lighting Group Leader
(510) 486-4274
SGJohnson@lbl.gov

Sponsor Information

This project is sponsored by the Laboratory Directed Research and Development program at Sandia National Laboratories. For more information, please visit the LDRD website.

Links
LDRD website