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Solar Frontier Achieves Record Solar Efficiency

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Joint research with NEDO yields 23.35 percent efficiency using thin film cadmium-free CIS technology

Solar Frontier, a provider of CIS solar technology, has set a new record for thin-film solar cell efficiency. In joint research with the National Research and Development Agency's New Energy and Industrial Technology Development Organisation (NEDO) of Japan, Solar Frontier achieved 23.35 percent conversion efficiency on a 1cm² cell using cadmium (Cd)-free CIS technology. The result was independently verified by the National Institute of Advanced Industrial Science and Technology (AIST) in November 2018.

This achievement was made through the research and development of such technologies as CIS absorber engineering and enhanced surface treatment of the absorber - used together with Solar Frontier's proprietary Cd-free CIS thin-film technology. Making performance improvements to each of the technologies, Solar Frontier reached its new world record by then combining these under optimal conditions.

The conversion efficiency achieved here represents a 0.4 percentage point increase over the previous world record of 22.9 percent that Solar Frontier set for Cd-containing CIS thin-film solar cells in November 2017. The new mark sets a world record for all CIS thin-film solar cell types, according to the company.



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