Low Cost, Scalable Manufacturing of Microlens Engineered Substrates (MLES) for Enhanced Light Extraction in OLED Devices

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$99,997.00
Award Year:
2010
Program:
STTR
Phase:
Phase I
Contract:
n/a
Award Id:
95235
Agency Tracking Number:
94614
Solicitation Year:
n/a
Solicitation Topic Code:
09 b
Solicitation Number:
n/a
Small Business Information
2153 SE Hawthorne Road, Ste 124 (Box 2), Gainesville, FL, 32641
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
024935517
Principal Investigator:
PurushottamKumar
Dr.
(352) 334-7270
pkumar@sinmat.com
Business Contact:
DeepikaSingh
Dr.
(352) 334-7237
singh@sinmat.com
Research Institute:
University of Florida
Franky So
156 Rhines Hall
PO Box 116400
Gainesville, FL, 32611
(352) 846-3790

Abstract
Solid state lighting is being promoted as the ultimate lamps of future. Though the internal quantum efficiency of OLED devices is almost 100%, external efficiency is a mere 36% mainly because of poor light out-coupling (~40%) from the device. Improvement in light out-coupling to >70% and further reducing the manufacturing cost will rapidly accelerate the commercialization of the OLED technology. The development of large meter scale non-vacuum manufacturing methods that address light out-coupling at both substrate interfaces is necessary to address this problem. Sinmat proposes a novel low cost method to create microlens engineered substrates that is expected to show significant enhancement in out-coupling efficiency, while reducing manufacturing cost. Commercial Application and Other Benefits: Lighting consumes >20% of the total electricity generated in the US and nearly 30% of electricity used in commercial and residential buildings. Proposed technology would increase the efficiency of OLEDs by 3 fold from ~50 lm/W to 150 lm/W which will be twice the efficiency of compact fluorescent lamps. Commercialization of solid state lighting technology will lead to substantial energy saving and environmental benefits to the nation.

* information listed above is at the time of submission.

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