Perovskite solar cells (PSCs) are promising solar technologies. Recently, a research group led by Prof. LIU Shengzhong from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS) has developed a facile surface redox engineering (SRE) strategy for vacuum-deposited NiO x to match the slot-die-coated perovskite, and fabricated high-performance large-area perovskite submodules. NiO x has been demonstrated as the hole transport materials for inverted PSCs. But for most vacuum-processed NiOx films, the relatively hydrophobic surface attenuates the adhesion of perovskite ink, making it challenging to deposit large-area perovskite films. Furthermore, due to the scalability of SRE strategy to large-area configurations, they assembled perovskite submodules of area 156 × 156 mm2 with a remarkable efficiency of 18.6% along with negligible hysteresis and good stability.

Source: The Local July 30, 2022 02:01 UTC