Published in the journal Energy & Environmental Science, the research reveals that in scaled-up applications, perovskite solar mini-modules with aperture areas of 25 and 100 cm2 demonstrated PCEs of 23.22% and 22.14%, respectively.
“The elevated glass transition temperature and robustly sequestered Li+ ions endow the devices with resilience against damp-heat conditions (85 °C/85% RH) for 1000 hours. Our findings signify a crucial leap towards commercialization by addressing thermal stability issues,” said researchers in the study.
The resulting cell produced a power conversion efficiency (PCE) of 25.56%—the highest among tBP-free solar cells.