Fig. 2. (a) Photographic images of the TIMHIB in the transparent state, mirror state under –2.5 V, and mirror state at V-off. (b) Reflectance spectra of TIBEIB in different states: from initial transparent state (solid black), to 5 min after application of –2.5 V (dashed black), to 10 min after application of –2.5 V (blue), to V-off state for 15 min (orange). (c) Reflectance of mirrors monitored at 650 nm, in different ILs (BEIB, MHIB, BHIB, and TBAB). (d and e) Reversible reflectance switching with (d) TITBAB and (e) TIBEIB upon application of repetitive step potentials given in the applied potential cycle.
