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*STTR
Project: Materials Degradation Analysis and Development to Enable Ultra Low
Cost, Web-Processed White P-OLED for SSL--Add‑Vision, Inc., 1600 Green Hills Road, Suite 100, Scotts
Valley, CA 95066; 831‑438‑8192;
www.add-vision.com
Mr. Devin John MacKenzie,
Principal Investigator, devinm@add-vision.com
Mr. Robert H. Roeloffs,
Business Official, robertr@add-vision.com
DOE Grant No. DE‑FG02‑07ER86293
Amount:
$748,258
Research Institution
In
order to reduce the capital equipment and operating costs involved in the
printing of specialty solid state lighting devices, a new LED (light-emitting
diode) device structure, based on the use of a doped polymer, has been
developed. This project will advance
this concept through degradation analysis and material and process development,
in order to achieve additional performance and process improvements that would
enable commercialization of this technology into a broader range of
applications. In Phase I, device and
encapsulation materials trials, as well as chemical analysis techniques, were
used to analyze the degradation mechanisms that limit performance in air-printed
doped polymer organic light emitting devices.
These studies showed that lifetimes could be improved by 300% by
implementing residual moisture control. In
Phase II, moisture control materials will be developed to enable higher
performance devices consistent with a low-cost manufacturing approach. Further degradation analysis will be performed
to uncover additional limiting factors.
Commercial Applications and
Other Benefits as described by the awardee:
Commercial
applications for printed, flexible, polymer organic LED technology should
reduce national energy consumption and improve overall product performance in
future building applications, including digital electronic signage,
architectural lighting, safety lighting, emergency and portable lighting, and
other specialty lighting products.