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SBIR Phase I: An Omni-Directional Antireflective Coating from Solutions

Award Information

Agency:
National Science Foundation
Branch:
N/A
Award ID:
88234
Program Year/Program:
2008 / SBIR
Agency Tracking Number:
0740147
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
ZT Solar, Inc
202 E. Border St., Suite 149 Arlington, TX 76010-
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 2008
Title: SBIR Phase I: An Omni-Directional Antireflective Coating from Solutions
Agency: NSF
Contract: 0740147
Award Amount: $100,000.00
 

Abstract:

The Small Business Innovation Research (SBIR) Phase I project will develop a novel Omni-Directional Antireflective Coating (Omni-AR) to improve light collection in photovoltaic cells. The coating consists of a monolayer of microscale silica particles partially immersed into a film of spin-on glass. Its antireflection is broad spectrum and less dependent on sunlight incident angle, thus omni-directional. More importantly, the coating is prepared from solutions, ensuring its low cost. The research activities include 1) development of coating processes which allow large-area, uniform and close-packed coating of solar cells with monolayer silica particles; 2) optical simulation to optimize the designs of Omni-AR coatings and 3) testing of commercial polycrystalline silicon solar cells with Omni-AR coatings. Except anisotropically-etched pyramids on single-crystalline silicon, there is currently no cost effective method to produce surface texture on any other types of solar cells. Through this project, the technical feasibility and commercial potential of Omni-AR will be demonstrated. Such a low-cost, broad-spectrum, omni-directional and substrate-independent AR coating will have a significant impact on current and future solar cell technologies, including polycrystalline silicon, amorphous silicon, ribbon silicon, copper indium diselenide, cadmium telluride and organic semiconductors, by significantly improving their efficiency with a minimum cost increase. These solar cells currently have ~60% of the solar cell market.

Principal Investigator:

Qing Guo
MS
8179651286
lguo@ztsolar.com

Business Contact:

Qing Guo
MS
8179651286
lguo@ztsolar.com
Small Business Information at Submission:

Zhou-Tao Solar, Inc
1120 South Freeway Fort Worth, TX 76104

EIN/Tax ID: 260158103
DUNS: N/A
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No