Perovskite photovoltaics have the potential to contribute significantly to the transition to clean electrical energy due to available raw materials and an excellent sustainability profile. By changing the composition of perovskite materials, their band gaps can be tuned to absorb light in a complementary manner. By combining the materials in a tandem solar cell, it becomes possible to exceed the theoretical efficiency limit of a single solar cell.
The SuPerTandem project aims to develop manufacturing technologies for 2-terminal tandem cells and monolithically connected modules on flexible films using low-cost perovskite absorber layers. Low production and power costs can be achieved by applying scalable manufacturing processes on film substrates. The modules produced will be characterized by high efficiency, excellent stability and a positive sustainability profile. Important aspects of the project include minimizing the use and impact of scarce and critical materials by using sustainable, abundant materials and applying encapsulation and recycling strategies to ensure recyclability. The overarching goal of SuPerTandem is to produce demonstrators with a Technology Readiness Level of 5. Participating partners have an interest in rapidly implementing project results for the establishment of roll-to-roll manufacturing facilities in the EU. The sustainability of the developed module technology will be validated from an environmental and economic point of view through life cycle and techno-economic assessments.