< Reseach Project

H2020-LCE-2017-RES-RIA- ESPResSo: Efficient Structures and Processes for Reliable Perovskite Solar Modules

The ESPResSo-project will bring the novel emerging hybrid organic-inorganic perovskite-based solar cell (PSC) technology to its next maturity level. In recent years, solution-processable solar technology has reached cell efficiency values rivalling those of established thin-film photovoltaic (PV) technology (CIGS, CdTe), even approaching crystalline Si (c-Si) records. The challenge is now to transfer this unprecedented progress from its cell level into a scalable, stable, low-cost technology on module level.

Current state-of-the-art PSC record devices typically contain expensive (e.g. Au electrode as back contact) and unstable materials (e.g. the organic Spiro-OMeTAD hole-transport material (HTM)), processed with non-scalable lab techniques (e.g. spin coating) in device architectures that have limited reliability (e.g. relying on specific interface interactions). ESPResSo targets alternative materials, insights in novel cell concepts and architectures, and advanced processing know-how and equipment to overcome these barriers and realize following global objective:

Develop and demonstrate a highly efficient (>17%) perovskite-based 35x35cm² module architecture that shows long-term (>20 years) reliable performance as deduced from IEC-compliant test conditions. Modules will be produced with industry-relevant low CAPEX manufacturing techniques validating a potential electricity cost as low as 0.05€/kWh in Southern Europe. Installing an actual building-integrated facade element will validate the potential contribution of this technology to the future European energy supply system. Additionally, prototyping advanced, arbitrary-shaped module architectures with specific materials and process combinations will emphasize that new highly innovative applications like on flexible substrates or with high semi-transparency are well accessible in the mid- to longer-term with this very promising thin-film PV technology.

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