Synthesis and Characterization of a Quinoxaline and Benzodithiophene Comprising Multifunctional Polymer

Date

2019-12-03

Author

Özdemir Hacıoğlu, Şerife
Yaşa, Mustafa
Depçi, Tolga
Göker, Seza
Toppare, Levent Kamil

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Conducting polymers have gained great interest recently due to their fascinating properties such as; solution processability, easy band gap alternation via structural modification, low cost and flexibility. Conducting polymers have variety of application fields like solar cells (OPVs), electrochromic devices, biosensors and light emitting diodes. Up to date, the donor-acceptor (D-synthesis of conducting polymers to obtain low band gap polymers for desired applications. Recently, quinoxaline and benzodithiophene units are widely used for donor and acceptor type aromatic heterocycles to achieve low band gap polymers. Herein, a novel multifunctional quinoxaline and benzodithiophene comprising polymer, namely poly[5-(5-(4,8-bis ((2-ethylhexyl)oxy) benzo[1,2-b:4,5-b']dithiophen-2-yl) selenophen-2-yl)-2,3-bis (3,4-bis(octyloxy)phenyl)-8-(selenophen-2-yl)quinoxaline], with selenophene-bridge was synthesized. The resulting polymer was characterized with electrochemical, spectroelectrochemical and electrochromic studies. The polymer exhibited low oxidation potential at 0.76 V with 1.74 eV optical band gap and multichromic redox states. These properties make the polymer a good candidate for electrochromic applications.

URI

https://hdl.handle.net/11511/85471

Collections

Department of Chemistry, Conference / Seminar