The Combination of benzotriazole and n-functionalized 2,5-di(2-thienyl)-1h-pyrrole units to investigate the electrochromic properties of conjugated polymers

Download
2013
Rende, Eda
Synthesis of new conducting polymers is desired since their electrochemical and optical properties enable them to be used as active layers in many device applications. Benzotriazole and nfunctionalized 2,5-di(2-thienyl)-1h-pyrrole (SNS Series) containing polymers showed very promising results as electrochromic materials. In order to observe the effect of the combination of these two units three new monomers 2-(6-(2,5-bis(5-methylthiophen-2-yl)-1H-pyrrol-1-yl)hexyl)-4,7-di(thiophen-2- yl)-2H-benzo[d][1,2,3]triazole (M1), 2-(6-(2,5-di(thiophen-2-yl)-1H-pyrrol-1-yl)hexyl)-4,7- di(thiophen-2-yl)-2H-benzo[d][1,2,3]triazole (M2) and 2-(6-(2,5-di(thiophen-2-yl)-1H-pyrrol-1- yl)hexyl)-4,7-bis(5-methylthiophen-2-yl)-2H-benzo[d][1,2,3]triazole (M3) were synthesized and electrochemically polymerized. The resultant polymers were characterized with cyclic voltammetry and UV-Vis-NIR Spectroscopy techniques. An electrochromic device was constructed with electrochemical polymer of M2.The device switched between red and blue colors and showed exceptional optical memory.
Citation Formats
E. Rende, “The Combination of benzotriazole and n-functionalized 2,5-di(2-thienyl)-1h-pyrrole units to investigate the electrochromic properties of conjugated polymers,” M.S. - Master of Science, Middle East Technical University, 2013.