High Stability Organic Molecular Dopants for Maximum Power Efficiency OLEDs

Investigating Organization
Pacific Northwest National Laboratory

Principal Investigator(s)
Linda S. Sapochak

Subcontractor
None

Funding Source
Building Technologies Program/NETL

Award
DOE Share: $1,733,122

Contract Period
1/15/07 - 1/14/10

Researchers at the Pacific Northwest National Laboratory propose to develop a new set of molecular dopants for bright, long lived OLEDs by tethering high electron affinity moieties to stable, vacuum-sublimable anchor molecules.  In this manner, they will introduce charge into the OLED layers in a spatially controllable manner more analogous to an inorganic semiconductor dopant.  In addition to improving the stability of doped OLEDs, the ability to control doping in fixed positions relative to the electrodes and organic interfaces will allow separation of interfacial and bulk effects for creating compositionally graded layers leading to optimization of both voltage and efficiency in bright, long lived OLEDs for solid state lighting.

Content dated 2/08