The Combination Of Benzotriazole And N-Functionalized 2,5-Di(2-Thienyl)-1h-Pyrrole Units To Investigate The Electrochromic Properties Of Conjugated Polymers

---

Tezin Türü: Yüksek Lisans

Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Fen Bilimleri Enstitüsü, Fen Bilimleri Enstitüsü, Türkiye

Tezin Onay Tarihi: 2013

Öğrenci: Eda Rende

Eş Danışman: LEVENT KAMİL TOPPARE, ALİ ÇIRPAN

Özet:

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.