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Solar Thin Film Photovoltaics
Search All Applications in Solar Thin Film Photovoltaics
Application US20130284258
Published 2013-10-31
Methods Of Growing Heteroepitaxial Single Crystal Or Large Grained Semiconductor Films And Devices Thereon
A method is disclosed for making semiconductor films from a eutectic alloy comprising a metal and a semiconductor. Through heterogeneous nucleation said film is deposited at a deposition temperature on relatively inexpensive buffered substrates, such as glass. Specifically said film is vapor deposited at a fixed temperature in said deposition temperature where said deposition temperature is above a eutectic temperature of said eutectic alloy and below a temperature at which the substrate softens. Such films could have widespread application in photovoltaic and display technologies.
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- 1. An electromagnetic device comprising:
a substrate, said substrate having a softening temperature being below 650 degrees Centigrade; and a single crystal or large grained semiconductor film deposited on said substrate, said film being deposited from a eutectic alloy at a constant temperature, said constant temperature being above a eutectic temperature of said eutectic alloy and below said softening temperature, wherein said constant temperature is within a silicon-growth temperature, said silicon-growth temperature permitting growth of defect-free silicon film, said silicon-growth temperature being above 550 degrees Centigrade.
- 13. An electromagnetic device comprising:
a substrate, said substrate being non-single crystalline; a crystallographically textured template, said template disposed on the substrate; and a thin film, said thin film deposited on the template, wherein nanowires are grown on said thin film.
