Solar-Tectic Develops Method for Manufacturing Single-Crystal Thin Films

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USA – Solar-Tectic  reports that it has been granted a world-wide exclusive license for a method of manufacturing single-crystal thin films on ordinary glass over a large area for photovoltaic and display applications.

The method stems from a Dartmouth College-sponsored research agreement with Solar-Tectic, initially inspired by a related technology disclosed by the late Dr. Praveen Chaudhari, renowned materials scientist and winner of the National Medal of Technology.

Dartmouth researchers at the Thayer School of Engineering invented this technology, which allows for single-crystal thin-films (composed of Si, Ge, GaAs, CdTe, CIGS, etc) to be monolithically fabricated on large-area amorphous substrates such as ordinary glass, at a cost that, according to Solar-Tectic, should be orders of magnitude lower than the price of manufacturing crystalline silicon solar cells (or c-Si).

The new technology is monolithic since it does not “glue” the single crystal layer to the substrate via bonding techniques. Compared to existing thin-film solar cell materials, this invention can increase efficiency by ~2x due to a significant improvement in material quality.

Solar-Tectic is currently seeking to sub-license this technology and an evaluation license is also being offered. A patent application for this invention has been filed by Dartmouth College with the United States Patent Office.