New fast-switching electrochromic devices based on an all-solid-state tandem structure

https://techxplore.com/news/2022-02-fast-switching-electrochromic-devices-based-all-solid-state.html

"flexible structures with a large area of 30x40 cm2... high contrast ratios (more than 90% at 650 nm), fas responses (coloration to 90% in 0.7 s and bleaching to 65% in 0.9 s and 90% in 7.1s), good coloration efficiency (109 cm2 C-1 at 670nm) and excellent cycling stability (less than 10% degradation of contrast ratio after 3000 cycles)"