First completely roll-to-roll printable perovskite solar cell.
The devices with carbon electrodes provided a similar photovoltaic performance to the conventional evaporated gold electrodes, as part of a small-scale device on a rigid glass substrate, with power conversion efficiencies (PCE) of 13%–14% and the additional benefits of outperforming at higher temperatures and having better long-term stability.
https://techxplore.com/news/2023-03-roll-to-roll-printable-perovskite-solar-cell.html
Paper: