Currently, several other companies are targeting single-junction perovskite panels and perovskite-silicon tandems, but Swift Solar is the only one developing all-perovskite tandems.

“Using two layers like this provides higher power conversion efficiencies – a theoretical limit of about 47% vs 33% for a single layer – and because both layers are perovskite, which is an earth-abundant and cheap material, the costs can stay very low. We are also able to make these layers on thin, flexible substrates and foils,” Eperon said.

“We invented the key components enabling the all-perovskite tandem technology… We’ve licensed patents that we filed in our previous institutions – Stanford, MIT and NREL – and have filed several from Swift,” he added.

Swift Solar looks to reinvigorate and push the perovskite market forward