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YUANCHENG QIN1,* , SHA LENG1, DAN ZHOU1, WEILI DAI1, MINGJUN LI1, XINGHUA TANG1, YU XIE1
Two kinds of copolymers based on dihydroindolo[3,2-b]carbazole in combination with dithieno[3,2-b:2',3'-d]silole (P1) and cyclopenta[2,1-b:3,4-b']dithiophene (P2) were designed and synthesized. The structures and properties of the copolymers were fully characterized. Compared with P1 film, P2 film showed a slighted red-shifted absorption spectrum. The two polymers had similar lowest unoccupied molecular orbital energy levels (3.6-3.7 eV); however, there were differences in highest occupied molecular orbital energy level: -5.54 eV for P1 and -4.92 eV for P2. These results indicate that it is a simple and effective approach to tune the bandgap in a conjugated polymer by tune the bridge atom..
Carbazole, Conjugated Polymers, Organic solar cells, Photovoltaic properties.
YUANCHENG QIN, SHA LENG, DAN ZHOU, WEILI DAI, MINGJUN LI, XINGHUA TANG, YU XIE, Synthesis and photovoltaic properties of carbazole-based conjugated polymers, Optoelectronics and Advanced Materials - Rapid Communications, 7, 11-12, November-December 2013, pp.849-855 (2013).
Submitted at: Jan. 6, 2013
Accepted at: Nov. 7, 2013
Optoelectronics and Advanced Materials - Rapid Communications
(2022): 0.5 - 2022 Journal Citation Reports (Clarivate Analytics, 2023)
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