Soluble alkyl substituted poly(3,4‐propylenedioxyselenophene)s: A new platform for optoelectronic materials |
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| Authors: | Samed Atak Merve ?çli‐Özkut Ahmet M Önal Atilla Cihaner |
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| Institution: | 1. Department of Chemistry, Middle East Technical University, Ankara TR‐06531, Turkey;2. Chemical Engineering and Applied Chemistry, At?l?m Optoelectronic Materials and Solar Energy Laboratory (ATOMSEL), At?l?m University, Ankara TR‐06836, Turkey |
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| Abstract: | Optical and electrochemical properties of regiosymmetric and soluble alkylenedioxyselenophene‐based electrochromic polymers, namely poly(3,3‐dibutyl‐3,4‐dihydro‐2H‐selenopheno3,4‐b]1,4]dioxephine) (PProDOS‐C4), poly(3,3‐dihexyl‐3,4‐dihydro‐2H‐selenopheno3,4‐b]1,4]dioxephine) (PProDOS‐C6), and poly(3,3‐didecyl‐3,4‐dihydro‐2H‐selenopheno3,4‐b]1,4]dioxephine) (PProDOS‐C10), are highlighted. It is noted that these unique polymers have low bandgaps (1.57–1.65 eV), and they are exceptionally stable under ambient atmospheric conditions. Polymer films retained 82–97% of their electroactivity after 5000 cycles. The percent transmittance of PProDOS‐Cn (n = 4, 6, 10) films found to be between 55 and 59%. Furthermore, these novel soluble PProDOS‐Cn polymers showed electrochromic behavior: a color change form pure blue to highly transparent state in a low switching time (1.0 s) during oxidation with high coloration efficiencies (328–864 cm2 C?1) when compared to their thiophene analogues. © 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011 |
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| Keywords: | conducting polymers conjugated polymers electrochemistry electrochromism polyselenophenes 3 4‐propylenedioxyselenophenes ProDOS redox polymers |
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