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Oligothiophene electron donor and electron acceptor for all small molecule organic solar cells with efficiency over 9

All-oligothiophene organic solar cells (AOT-OSCs) were realized by the cooperation of structurally simple donor/acceptor. The devices fabricated with thiazole-centered donor Tz6T and quaterthiophene-based acceptor A4T-16 exhibited a PCE of 9.30%. Tz6T/A4T-16 duo demonstrated an excellent industrial...

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Published in:Chemical engineering journal (Lausanne, Switzerland : 1996) Switzerland : 1996), 2023-01, Vol.456, p.141006, Article 141006
Main Authors: Duan, Tainan, Yang, Qianguang, Sun, Zongyu, Chen, Qianqian, Zhang, Guangquan, Hu, Dingqin, Oh, Jiyeon, Yang, Changduk, Lv, Jie, Feng, Bo, Kan, Zhipeng, Chen, Shanshan, Zhong, Cheng, Lu, Shirong, Yang, Ke
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Language:English
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Summary:All-oligothiophene organic solar cells (AOT-OSCs) were realized by the cooperation of structurally simple donor/acceptor. The devices fabricated with thiazole-centered donor Tz6T and quaterthiophene-based acceptor A4T-16 exhibited a PCE of 9.30%. Tz6T/A4T-16 duo demonstrated an excellent industrial figure of merit (i-FoM) of up to 0.168 which represented one of the best cost-effectiveness in all small molecule organic solar cells. [Display omitted] •Structurally simple photovoltaic oligothiophene donor/acceptor duo cooperated.•A champion PCE of 9.3 % for organic solar cells based on Tz6T/A4T-16.•Tz6T/A4T-16 duo demonstrated one of the highest figure-of-merit values. By using easily accessible oligothiophene donors and acceptor, all-oligothiophene organic solar cells (AOT-OSCs) were realized. The devices fabricated with thiazole-centered donor Tz6T and quaterthiophene-based acceptor A4T-16 exhibited a satisfactory power conversion efficiencies (PCEs) of 9.30 %. Moreover, the devices based on Tz6T/A4T-16 binary demonstrated an excellent industrial figure of merit (i-FoM) of up to 0.168 which represented one of the best cost-effectiveness in all small molecule organic solar cells, suggesting the strong potential of all-oligothiophene combinations in developing OSCs with both low cost and high efficiency.
ISSN:1385-8947
1873-3212
DOI:10.1016/j.cej.2022.141006