A short update on the progress of the CHEOPS after one year:
5x5 cm² module demonstrator: Three CHEOPS partners have developed single-junction perovskite modules on a 5x5 cm² substrate. All modules have reached a power conversion efficiency (PCE) of >12% on active area and a stabilized PCE of more than 10% at maximum power point. More information on architecture, manufacturing flow and materials is available on the CHEOPS website.
Perovskite/silicon tandem cells: CHEOPS has developed a low-temperature (i.e. below 200°C) fabrication process yielding perovskite solar cells with highly uniform absorber layers. This is key for the fabrication of perovskite/silicon heterojunction tandem cells, since the perovskite top cell is directly processed onto the bottom cell and temperatures above 200°C would deteriorate the performance of these high-efficiency bottom cells. More information on the recipe used are available on the CHEOPS website.
Increased stability: CHEOPS partners have developed an encapsulation strategy by testing and comparing several sealing procedures using accelerated life tests on encapsulated cells. More information on the procedure is available on the CHEOPS website.
Publications: Three publications have come out so far from our work on the CHEOPS project. Manuscripts or published versions are freely available for download.
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