Mixed halide wide-bandgap perovskite/ organic tandem solar cells with increased efficiency, stability and lifetime

https://techxplore.com/news/2024-04-strategy-boost-efficiency-perovskiteorganic-solar.html

"incorporate trace pseudo-halogen thiocyanate (SCN) ions in iodide/bromide mixed halide perovskites, forming I/Br/SCN alloy, occupying iodine vacancies, enhancing crystallization, thiocyanate slowing down crystallization blocking halide ion migration via steric hindrance, facilitating electric charge movement, reducing grain boundaries...  certified 25.06% PCE, 1,000 h operational stabiliy... future; enabling stability under varying light intensities"