Colorless to black electrochromic devices using subtractive color mixing of two electrochromes: A conjugated polymer with a small organic molecule
| Autor: | Xiaozheng Zhang, Omer Yassin, Mengfang Li, Ajinkya A. Deshmukh, Gregory A. Sotzing, Robert Daniels, Yumin Zhu, Matthew L. Baczkowski, Michael T. Otley |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
02 engineering and technology Conjugated system 010402 general chemistry Electrochromic devices 01 natural sciences Biomaterials Materials Chemistry Molecule Electrical and Electronic Engineering chemistry.chemical_classification Subtractive color business.industry General Chemistry Polymer 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry Electrochromism Color mixing Optoelectronics 0210 nano-technology business Visible spectrum |
| Zdroj: | Organic Electronics. 84:105748 |
| ISSN: | 1566-1199 |
| Popis: | Herein, we present a facile method for color-tuning an electrochromic device that switched between two neutral colors through simple color mixing of a conjugated polymer, poly(2,2-dimethyl-3,4-propylenedioxythiophene) and an electrochromic small molecule aromatic diester, diethyl-4,4′-biphenyldicarboxylate. The resulting device had a photopic contrast of ca. 57% across the visible spectrum. In addition, the device exhibited color uniformity and stability over 2,000 switches. Using these mixed coloring materials, a large area electrochromic device of 140 cm2 was fabricated, exceeding the size of ophthalmic lenses and small displays. |
| Databáze: | OpenAIRE |
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