56
Polymer
White Light Emitting Devices--Reveo,
Inc.,
Dr.
Shujun Wang, Principal Investigator, Shujun.Wang@reveo.com
Ms.
Rayan Faris, Business Official, Rayan.Faris@reveo.com
DOE
Grant No. DE-FG02-03ER83767
Amount:
$99,800
Organic
Electroluminescent
(OEL) technology is considered to be the most promising type of solid-state
lighting for providing flexible, vibration and shock resistance, and
environmentally friendly illumination for general lighting. However,
currently available OEL materials and device fabrication techniques do not meet
the market requirements of high brightness, white light quality, high
luminescent efficiency, long lifetime, and low cost. This
is preventing OELs from breaking into large-scale commercial markets and
dominating the general illumination industry.
This project will utilize a novel frozen p-i-n junction for
light-emitting electrochemical cells (LEC), thereby avoiding many of the
problems facing other technologies (e.g., organic light emitting diode devices),
such as unbalanced charge injection, sensitivity to film thickness, and reliance
on low work function metals. Phase
I will demonstrate the functionality of the new material technology for LECs
with frozen p-i-n junctions and the applicability of the materials to OEL
devices. Devices fabricated with the
new materials will be tested for white light quality, high efficiency, high
brightness, low operating voltage, and insensitivity to electrode materials and
film thickness.
Commercial Applications and Other
Benefits
as described by awardee: The technology should be extremely
beneficial for all general lighting applications of solid-state lighting
devices, and beyond that, for high brightness image displays, sign indicators,
automobile display applications, and safety cloths.