PEPR project
Innovative tandem architectures
Dates:
January 2023 – December 2027
Project coordinator:
Institut Fonctions Optiques pour les Technologies de l’information
Partner laboratories:
10 academic laboratories
IMN staff involved:
Nicolas BARREAU, Thomas LEPETIT, Ludovic ARZEL, Sylvie HAREL
The aim of the IOTA project is to develop new solutions for low-cost, high-efficiency tandem solar cells. The project will focus on thin-film/silicon solar cells in order to take advantage of industrially mature silicon technology for the bottom cell, and explore several options for the top cell by leveraging technologies already available in the community. The aim is to propose breakthrough solutions for tandem solar cells to achieve conversion efficiencies >30% with low-cost, industrializable processes.
To achieve this ambitious goal, cross-disciplinary technological building blocks will be developed (photon management, material deposition, interface layers, integration processes). WP1 is dedicated to the development of interface materials on rough Si surfaces. WP2 is dedicated to the development of processes for depositing perovskite on rough surfaces. WP3 is dedicated to the development of breakthrough processes for nanostructuring and localized deposition. In WP4, simulation of tandem solar cells will support these developments, which will be integrated in three different architectures.
The IOTA project will accelerate the integration of low-cost thin-film solar cells on silicon, reconciling a reduction in the use of critical materials with the ability to transfer these low-TRL technologies to industrializable processes (TRL3-TRL4).
