Interface engineering enables record efficiency in inverted perovskite solar cells, removing barriers to commercialization

https://www.eurekalert.org/news-releases/1104139

"overcomes poorly controlled interfaces leading to complex fabrication, inefficient charge transport, significant energy loss... elegant/ efficient double molecular bridge uses single multifunctional additive 4-F-PEAFa molecule which simultaneously creates 2 perovskite transport layer bridges: 1 moving holes/ 1 moving electrons... record: 25.6% efficiency, up to 0.88 fill factor... unencapsulated device maintained >90% of initial efficiency after 2000 hours at 85°C or 1000 hours under continuous operation"