Overview
- An eScience study reports inverted perovskite cells reaching a 26.74% champion efficiency, with a certified 26.56% result and over 95% efficiency retained after more than 1,000 hours of unencapsulated light exposure.
- The hindered amine additive forms regenerative nitroxyl radicals that neutralize superoxide species and coordinates with Pb²⁺ and iodine vacancies to passivate trap states, improving charge transport.
- A Nature Energy paper details a SnO₂-TGA-OAm treatment that creates a buried 2D/3D heterojunction, cutting bottom-interface defects by more than 90% and enhancing crystallization and carrier dynamics.
- Devices using the interface-engineered layer deliver 26.19% efficiency in small cells and achieve independently certified 22.68% efficiency in a 21.54 cm² module, with 22.22% reported for a 64.80 cm² module.
- Both teams emphasize compatibility with existing architectures and scalable processes, presenting complementary routes to higher stability and performance from lab cells to modules.