Energy saving electrochromic windows from bistable low-HOMO level conjugated polymers†
Abstract
Energy saving electrochromic windows were established by controlling the interfacial charge transport using low-HOMO level (<−5 eV) π-conjugated polymers as bistable electrochromic films and an ionic liquid as the electrolyte. It provided a long bistability (>90 min) at the voltage-off state with a high color contrast (879 cm2 C−1).