Exploiting Flexible pErovskites Solar technOlogies

"EFESO, acronym of ""Exploiting Flexible pErovskites Solar technOlogies"" aims to bring perovskite technology on flexible substrates towards commercialization.

This project aims at upscaling stable Flexible Perovskite Solar Modules (FPSMs) by optimizing their fabrication process on flexible substrates, reducing inactive areas on modules, and by working on lead (Pb) trapping intrinsically, using doping and interface engineering, and extrinsically by encapsulation strategies.

The proposed project is divided into 3 main parts:

1. Materials: assessment of the flexible substrates, additives, and interface layers to get the best and stable layer to be used for device fabrication;

2. Device: fabrication and characterization of devices, focusing on lead trapping strategies by encapsulation and interface engineering;

3. Upscaling: optimization of the design and laser processes of P1-P2-P3 for indoor and outdoor applications (standard procedures to create a series connection of cells, to reduce losses encountered for large-area devices).

The principal objective of this action will be the fabrication of Flexible Perovskite Solar Cells with performances of 23% and 35% on small area devices at 1 Sun and 1000lx intensity respectively, FPSMs with power conversion efficiency (PCE) of 21% and 18% on an area greater than 10cm2 and 200cm2 respectively.

All devices fabricated will pass the ISOS D-L-T-1 tests and they will show a reduction of lead leakage by 4-5 orders of magnitude A final product demonstrator will be fabricated showing the applicability of these devices into the market.

The action will bring new materials, additives, sealants, polymers, solvent concentrations used to limit lead leakage, and build a stable and highly efficient device on a flexible substrate, from cell to module size. For these reasons, this action will grab the attention of the scientific community that will recognize this work as a potential path for prompt commercialization."