Method for Depositing Semiconductive Materials for Photovoltaic Solar Cells
This invention provides a method and apparatus for depositing alloy films that are used in manufacturing photovoltaic solar cells, which convert sunlight into electricity. The technology enables easy scaling to produce the large wafers that are required for photovoltaic solar cells. It is also safer than other processes because it does not use toxic materials, such as hydrogen selenide, and provides uniform deposition over large working areas. The method can be used to deposit coatings with graded copper-indium compositions or alloy coatings. It also can be adapted for use in ion-assisted depositions. For more information, contact: Office of Technology Management University of Illinois at Urbana–Champaign 319 Ceramics Building 105 South Goodwin Avenue Urbana, Illinois 61801 USA Phone (217) 333-7862 Fax (217) 265-5530 E-mail: [email protected]
Sector: Renewable Energy Technologies
Area of Application: This technology could improve the cost-effectiveness of solar cells used in a host of applications including Wireless and other telecommunications (e.g., telemetry) Power sources in remote locations (e.g., weather stations, navigation aids, radio transmitters) and so on.
Keywords: Alloy films, Photovoltaics, Apparatus
Advantages: This invention offers the following advantages for large-scale production of semiconductor films used in manufacturing photovoltaic solar cells: 1. Safety: This technology does not require the use of hydrogen selenide or other dangerous materials 2. Usable at large scale/volume: This technology provides uniform deposition over large working areas and can be scaled up to produce a large volume and size of films. 3.Controllable: This technology offers linear control over the deposition rate of the materials supplied by sputtering, allowing for layered depositions.
Environmental aspects: Energy efficiency
Development Status: Commercial Prototype
Transfer Terms: Consultancy , Technical Services
Estimated cost (US$):
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