Imec Reports 23.9 Percent Conversion Efficiency on a 4cm2 Perovskite/ Silicon Solar Module Updated On Wed, Aug 9th, 2017 by Saurenergy In 2016, Imec presented for the first time a semi-transparent perovskite module, developed in collaboration with Solliance, stacked on top of an interdigitated back-contact (IBC) crystalline silicon solar cell in a four-terminal tandem configuration, thereby achieving an overall power conversion efficiency of 20.2 percent on an aperture area of 4cm2 Imec has announced an improvement […] Read more