Abstract
Thienosquaraines are an interesting class of electroactive dyes that are useful for applications in organic electronics. Herein, the redox chemistry and electrochromic response of a few newly synthesized thienosquaraines are presented. These properties are compared to those of the commercial 2,4-bis[4-(N,N-diisobutylamino)-2,6-dihydroxyphenyl]squaraine. The stability of the radical ions formed in electrochemical processes strongly affects these properties, as shown by cyclic voltammetry, in situ spectroelectrochemistry, and quantum chemical calculations. Furthermore, all of the dyes show aggregation tendency resulting in panchromatic absorption covering the whole UV/Vis spectral range.
| Original language | English |
|---|---|
| Pages (from-to) | 10179-10186 |
| Number of pages | 8 |
| Journal | Chemistry : A European Journal |
| Volume | 22 |
| Issue number | 29 |
| DOIs | |
| Publication status | Published - 11 Jul 2016 |
Keywords
- aggregation
- density functional calculations
- electrochemistry
- radical ions
- squaraines