Novel high efficiency solar cell structures for 1500X sun concentration

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Concentrated photovoltaics (CPV) technology is among the most promising solar technologies. In this market,the Canadian company STACE has the most reliable CPV modules technology in the industry. In order toevolve in a fast moving market, STACE would like to push the concentration limit of its module to a highersolar concentration. For this purpose a new generation of solar cell architecture needs to be demonstrated.STACE would like to work with the universite de Sherbrooke (UdeS) on a new concept of multijunction solarcells which would allow reaching much higher solar concentrations above 1000 suns, this concept is based onduplicating each sub-cell into a plurality of sub-junctions in order to reduce the current while increasing thevoltage. As a result the resistive losses are significantly reduced allowing boosting the efficiency at highconcentration. The team at the université de Sherbrooke, with the Prof. Boucherif and a PhD student will bringa unique expertise in solar cell design and modeling while taking care of designing the cell for manufacturingand system integration by calibrating the model based on measurements done on real cells and lenses providedby STACE. This collaboration target to deliver a design of an efficient solar cell structure at 1500 sunsconcentration in addition to a cost of energy estimate adapted to STACE modules.Concentrated photovoltaics (CPV) technology is among the most promising solar technologies. In this market,the Canadian company STACE has the most reliable CPV modules technology in the industry. In order toevolve in a fast moving market, STACE would like to push the concentration limit of its module to a highersolar concentration. For this purpose a new generation of solar cell architecture needs to be demonstrated.STACE would like to work with the universite de Sherbrooke (UdeS) on a new concept of multijunction solarcells which would allow reaching much higher solar concentrations above 1000 suns, this concept is based onduplicating each sub-cell into a plurality of sub-junctions in order to reduce the current while increasing thevoltage. As a result the resistive losses are significantly reduced allowing boosting the efficiency at highconcentration. The team at the université de Sherbrooke, with the Prof. Boucherif and a PhD student will bringa unique expertise in solar cell design and modeling while taking care of designing the cell for manufacturingand system integration by calibrating the model based on measurements done on real cells and lenses providedby STACE. This collaboration target to deliver a design of an efficient solar cell structure at 1500 sunsconcentration in addition to a cost of energy estimate adapted to STACE modules.