The Korea Research Institute of Chemical Technology (KRICT) and Korean semiconductor equipment maker UniTest have announced the joint development of a large-area perovskite solar cell with 20.6% efficiency, which they define as a record-breaking achievement.
They reportedly received the world’s highest efficiency certification from Fraunhofer and will be listed on the U.S. National Renewable Energy Laboratory (NREL)’s solar cell efficiency chart.
Coating uniformity and laser process optimization are vital to boosting efficiency, as it is difficult to optimize various elements of large-area devices. Through the process of optimizing material synthesis, coating uniformity, and laser power optimization, the KRICT team succeeded in obtaining an internationally recognized certification of 20.6% efficiency.
The large-area perovskite solar cell technology can be applied to perovskite-silicon tandem solar cells, too, the team explained.
In addition to commercializing existing glass window-type perovskite solar cells, UniTest is promoting a project to mount transparent perovskite solar cells jointly developed with Korean automobile manufacturers on panoramic solar roofs on cars.
