SBIR Phase I: Tin(II) Sulfide Photovoltaics

Award Information
Agency: National Science Foundation
Branch: N/A
Contract: 0945561
Agency Tracking Number: 0945561
Amount: $149,922.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2010
Solicitation Topic Code: NM
Solicitation Number: NSF 09-541
Small Business Information
31 Greenway Dr., Walnut Creek, CA, 94596
DUNS: 615263246
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Paul Wickboldt
 (925) 360-1695
Business Contact
 Paul Wickboldt
Title: PhD
Phone: (925) 360-1695
Research Institution
This Small Business Innovation Research (SBIR) Phase I project aims to develop photovoltaic devices based on tin (II) sulfide (SnS). The properties of SnS, including bandgaps, carrier density and mobility, chemical and thermal stability, and metallurgical properties, promise the possibility to achieve relatively high conversion efficiency given state-of-art process control and device design. In this project, close space sublimation (CSS) technique, a thin film fabrication method proven for low cost and high manufacturability, will be used to synthesize SnS. The broader/commercial impact of this project will be the potential to produce photovoltaic devices based on low-cost and environmentally-friendly materials. There is no doubt that solar electricity has attracted a lot of attention in recent years as an alternative and renewable energy source. However, most of the current solar cell technologies have one or more of the following issues that, (1) raw materials are not abundantly available; (2) toxic materials are used; (3) overall cost is high. This project will address these issues by developing photovoltaic devices using SnS, a semiconductor material that can be supplied on a massive scale and at low recovery costs.

* Information listed above is at the time of submission. *

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