Orange to green switching anthraquinone‐based electrochromic material
| Autor: | Caroline Pan, Desta Antenehe Gedefaw, Jonas Mattiasson Bjuggren, Mats Andersson, Ergang Wang, Kim Bini, Anirudh Sharma |
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| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Materials science Polymers and Plastics Absorption spectroscopy 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry Electrochromic devices 01 natural sciences 0104 chemical sciences Surfaces Coatings and Films chemistry Electrochromism Materials Chemistry Transmittance Naked eye Cyclic voltammetry 0210 nano-technology HOMO/LUMO |
| Zdroj: | Journal of Applied Polymer Science. 136:47729 |
| ISSN: | 1097-4628 0021-8995 |
| Popis: | An easily accessible anthraquinone-benzodithiophene-based high bandgap polymer (PTAq) was synthesized by Stille coupling reactions in remarkably high yield (96.5%). The highest occupied molecular orbital energy level of the polymer was estimated from the onset of oxidation in a cyclic voltammetry study to be -5.7 eV. PTAq showed an orange-to-green color switching with the application of a 1.0-V external potential to the polymer film, which was visible to the naked eye. The optical behavior change was also monitored using ultraviolet-visible absorption spectroscopy and revealed a respectable 75% transmittance change when the polymer film was subjected to a 1.0-V external potential. The high color contrast observed makes PTAq one of the most promising materials for electrochromic device applications. (c) 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47729. |
| Databáze: | OpenAIRE |
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