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METHODS FOR SUBLIMATION OF Mg AND INCORPORATION INTO CdTe FILMS TO FORM TERNARY COMPOSITIONS

United States Patent Application

20120322198
A1
View the Complete Application at the US Patent & Trademark Office
A Sublimation Method to Create Complex Cadmium/Magnesium/Tellurium Thin Film Alloys
A method for sublimating a thin film of Magnesium (Mg) on a semiconductor structure for improved efficiency is described. One embodiment includes a method comprised of providing a semiconductor substrate in a vacuum chamber, wherein the substrate comprises a window layer and an absorber layer made of CdTe. The method further includes heating the substrate to a diffusion temperature or greater followed by depositing a Mg film on the absorber layer using a sublimation process, wherein at least a portion of the Mg forms a Cd.sub.1-xMg.sub.xTe alloy within the absorber layer.
Kobyakov, Pavel S. (Fort Collins, CO), Sampath, W. S. (Fort Collins, CO), Walters, Kevin E. (Milliken, CO), Kephart, Jason M. (Fort Collins, CO), Barricklow, Keegan (Fort Collins, CO)
13/ 526,383
June 18, 2012
GOVERNMENT LICENSE RIGHTS [0002] This invention was made with government support under Grant No. IIP0968987 awarded by the National Science Foundation. The government has certain rights in the invention.