XsunX reports 15.1 percent CIGS conversion efficiency


The company says that with other market-ready thin film technologies functioning within the range of 8-11 percent for solar modules, its CIGSolar technology “illustrates conversion efficiency that may soon lead to gains over current technology”.

It explains that deposition of the CIGS cell layers was conducted on full size 125 mm square substrates. Test configurations used to measure efficiency are identical to that used by the National Renewable Energy Laboratory, reports XsunX, while its test equipment is calibrated to the standards of the National Institute of Standards and Technology (NIST) standards.

"The rate at which we're experiencing percentage point gains is truly incredible considering only weeks ago we announced surpassing 14 percent conversion efficiency," said Tom Djokovich, CEO, XsunX, Inc. "Our confidence that small area co-evaporation processes is the key to delivering the best performance CIGS thin film cells continues to be strengthened."

This rapid success, says the company, coupled with the technology's perceived value as an alternate for the use of silicon solar cells, has "accelerated" the industry's interest levels. This, it states, has not only led to additional license discussions for XsunX, but has also allowed the company to work towards executing its plan to develop JV License agreements to deliver the technology package through existing manufacturers.

"It's important to remember that we are developing our technology on the same size substrates we intend to use in our commercial systems, about the same size as a silicon solar cell, so the efficiency levels we achieve in the laboratory we believe will be transferable to what we can offer the market," adds Djokovich. "Unlike current solar developers, we don't anticipate having to struggle with the challenges of scaling product while maintaining laboratory efficiencies."

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