France’s National Solar Energy Institute (INES), a division of the French Alternative Energies and Atomic Energy Commission (CEA), and WattByWatt, a Canadian startup, unveiled a two-terminal, 9 cm² perovskite-silicon tandem solar cell with a power conversion efficiency of 28%.
It combines WattByWatt’s proprietary ink formulation and its ambient air wet-process for depositing the perovskite-based active layer with a CEA reference two-terminal tandem cell architecture.
“These results open up new perspectives for the scaling and industrialization of tandem perovskite-on-silicon technology using high-potential processes,” said CEA in a statement.
The two organizations have an ongoing collaboration to develop processes for manufacturing tandem solar cells.
WattByWatt, founded in 2020, has been developing single-junction perovskite indoor PV mini-modules for applications such as smoke detectors, locks, cameras, and remote controls. Its R&D is focused on depositing perovskite absorber layers for both single-junction and tandem perovskite-silicon solar cells based on its novel ink formulation and an ambient wet-process for deposition.
Earlier this year, CEA-INES reported a 30.8% efficient tandem perovskite-silicon solar cell made in collaboration with Enel’s 3Sun, just four months after announcing their collaboration on a 29.8%-efficient device.
This content is protected by copyright and may not be reused. If you want to cooperate with us and would like to reuse some of our content, please contact: editors@pv-magazine.com.
By submitting this form you agree to pv magazine using your data for the purposes of publishing your comment.
Your personal data will only be disclosed or otherwise transmitted to third parties for the purposes of spam filtering or if this is necessary for technical maintenance of the website. Any other transfer to third parties will not take place unless this is justified on the basis of applicable data protection regulations or if pv magazine is legally obliged to do so.
You may revoke this consent at any time with effect for the future, in which case your personal data will be deleted immediately. Otherwise, your data will be deleted if pv magazine has processed your request or the purpose of data storage is fulfilled.
Further information on data privacy can be found in our Data Protection Policy.