Low cost printed electrodes for OLED lighting

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$221,717.00
Award Year:
2013
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-13ER90669
Award Id:
n/a
Agency Tracking Number:
76513
Solicitation Year:
2013
Solicitation Topic Code:
04a
Solicitation Number:
DE-FOA-0000801
Small Business Information
2180 William Pitt Way, Pittsburgh, PA, 15238-1357
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
126673800
Principal Investigator:
Hongmei Zhang
Dr.
(412) 423-2030
hzhang@plextronics.com
Business Contact:
William Snyder
Mr.
(412) 423-2030
wsnyder@plextronics.com
Research Institution:
Stub




Abstract
Organic Light Emitting Diode (OLED) is a new emerging technology that is energy efficient and environment friendly lighting replacement for current lighting technologies such as incandescent bulbs and fluorescent tubes. As performance of OLEDs has improved over the last several years it has demonstrated the potential to reach parity with LED lighting. However cost remains a major obstacle for main stream adoption and commercialization. According to DOE SSL road map, 40% of material cost is the cost of integrated substrates which include glass, ITO with metal grids and light-out-coupling (LOC) layers. As panel size increases, conductivity of ITO will not be sufficient to ensure brightness uniformity and power efficiency. Current best commercially available ITO substrates have sheet resistance & gt; ~5 ohms/sq. This is insufficient for large area panel with pixel size & gt; ~ 3x3 cm. Metal grids are needed in order to reduce sheet resistance of anode and hence reduce power consumption and improve luminance uniformity of OLED. In this proposal we demonstrate large area OLED panels on low cost anode structure by using inkjet printed grids using a novel high conductivity reactive silver ink and integrate the grids with Plextronics hole-injection layer (HIL). In order to reduce both material cost as well as increase thru-put by minimizing number of photolithography steps, inkjet printing will be used to fabricate anode structure. Printing offers direct patterning as well as high material utilization and thus potential for significant cost reduction. By process development and process integration of grids and HIL we demonstrate low cost printed anode structure that enables large area OLED panel manufacturing. Our proposal supports the development of affordable, large OLED lighting required for commercial applications such as custom lighting used in retail displays.

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government