Donor- Acceptor Carbazole and Uinoxaline Based Polymers for Application in Solar Cells
Abdelqader Imragaa, Fateh B. Eltaboni, Khaled Edbey, Abdelkarem A. Elgazail, Abdulaziz Al Ghamdi, Ahmed Iraqi
Physical Science International Journal · pp. 1–8 · Published 8 Apr 2016
10.9734/PSIJ/2016/23070Abstract
The preparation and characterization of poly[(3,6-difluoro-9-(1-heptadecan-9-yl)-9H-carbazole-2,7-diyl)-alt-(2,3,7,8-tetraphenyl-10-(thiophen-2-yl)pyrazino[2,3-g]quinoxaline)-5,5’-diyl] P1 and Poly[(3,6-difluoro-9-(1-heptadecan-9-yl)-9H-carbazole-2,7-diyl)-alt-(2,3-diphenyl-8-(thiophen-2-yl)quinoxalin -5-yl)thiophen-2-yl)-5.5’-diyl] P2 are presented. The polymers were prepared via Suzuki cross-coupling reactions; both polymers provided low-band-gap polymers that absorbs light up to 350 nm of the electromagnetic spectrum. Cyclic voltammetry studies on the two polymers indicate greater electrolytic stability of these new polymers as compared to the polyfluorene equivalent [1,2]. Electrochemical and optical absorption show that the band gaps of P1 and P2 range from 1.64 and 1.93 eV.
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