Confirmed by the Fraunhofer Institute for Solar Energy Systems ISE, Hanergy subsidiary, Solibro has achieved a conversion efficiency of 18.7% in a lab produced copper-indium-gallium-selenium (CIGS) sub-module (5x5cm2), one of the highest reported for CIGS technology.

Solibro Research AB in Sweden fabricated the sub-module which had an aperture area of approximately 16cm2, using laboratory equipment.

However, Hanergy said that fabrication of the sub-module used production processes and manufacturing type conditions, which are expected to be commercialised, though no timelines were given. 

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