BOOSTPV · Development of Bismuth Chalcogenide Sustainable Thin Film PV Technology

The EU set an ambitious goal towards decarbonising the energy system and to reach climate objectives in 2030/2050. PV is recognized as one of the key renewable energy solution to fulfil the climate-neutrality, defined by strategical SET-plan target of 30% (10TW) worlds energy demand by 2050. To meet these goals in an economically and environmentally meaningful way, energy demand and CO2 emissions for the production of PV cells must be well below those of mainstream crystalline silicon. Todays available highly efficient thin film (tf) PV technologies relies on scarce elements (indium in CIGS; tellurium in CdTe) or contains elements like lead or cadmium that fall under the EU RoHS-directive. BOOSTPV proposes development of novel absorbers and proof of concept tf solar cells entirely based on emerging, low-cost, earth abundant and green bismuth chalcogenide PV materials. The approach is based on a rapid technological development of low temperature processes, using robust, resource saving, high yield and easily scalable close spaced sublimation technique. BOOSTPV will promote the research excellence of the fellow and research group via two-way transfer of knowledge, strengthening their expertise and innovation at international level. Cost-efficient, stable and lightweight tf solar cells will be fabricated, using processes with reduced environmental impact and carbon footprint, paving a solid base for further development and deployment of ground-breaking technologies that will feed the innovation cycle, progress in BIPV/PIPV application variability and support the value chain of the next generation PV in EU.