High-Recombination Efficiency White Phosphorescent Organic Light Emitting Devices (Phase II)
Investigating Organization
Universal Display Corp.
Principal Investigator(s)
Dr. Brian W. D'Andrade
Subcontractor
None
Funding Source
Small Business Innovation Research
Award
DOE Share: $750,000; Contractor Share: $150,000
Contract Period
08/07/06 - 08/06/08
The objective is to develop novel low-cost, high-efficiency solid-state organic light-emitting devices (OLEDs) for general illumination. The project seeks to optimize the recombination efficiency of white OLEDs (WOLED™) such that electrons and holes generate a desired ratio of red, green and blue excitons leading to an unsaturated white emission enabling a WOLED with color rendering index (CRI) of >75, and efficacy of 40 lm/W at 800 cd/m2. This proposed optimization will be effectively accomplished using an organic vapor phase deposition (OVPD) system that is capable of producing novel doping profiles within the emissive regions of an OLED.