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
Contract: DE-FG02-10ER86465
Agency Tracking Number: 94614
Amount: $749,991.00
Phase: Phase II
Program: STTR
Awards Year: 2011
Solicitation Year: 2010
Solicitation Topic Code: 09 b
Solicitation Number: DE-FOA-0000161
Small Business Information
Sinmat Inc.
2153 SE Hawthorne Road, Ste 124 (Box 2), Gainesville, FL, 32641-7553
DUNS: 024935517
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Purushottam Kumar
 Dr.
 (352) 334-7270
 pkumar@sinmat.com
Business Contact
 Deepika Singh
Title: Dr.
Phone: (352) 334-7237
Email: singh@sinmat.com
Research Institution
 University of Florida
 156 Rhines Hall
PO Box 116400
Gainesville, FL, 32611-6400
 () -
 Nonprofit college or university
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 & gt;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 & gt;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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