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题名: TPD-based polythiophene derivatives with higher V-oc for polymer solar cells
作者: Wang, Kun1, 2; Xu, Zhuo1; Guo, Bing1; Guo, Xia1; Zhang, Maojie1; Li, Yongfang1, 3
刊名: RSC ADVANCES
发表日期: 2016
卷: 6, 期:68, 页:63338-63346
收录类别: SCI
英文摘要: New D-A copolymers, PTPD-DT and PTPD-DFDT, based on a thieno[3,4-c]pyrrole-4,6-dione (TPD) acceptor unit and 2,2'-bithiophene (DT) or 3,3'-difluoro-2,2'-bithiophene (DFDT) donor units, were designed and synthesized for application as donor materials in polymer solar cells (PSCs). A control polymer PTPD-DT with a similar structure but without fluorine substitution on the 2,2'-bithiophene (DT) unit was also synthesized for comparison. Compared with PTPD-DT, the polymer PTPD-DFDT with fluorine substitution on the DT unit shows a lower HOMO energy level of -5.55 eV, more broad absorption in the wavelength range from 300 to 700 nm, greater coplanarity and crystalline structure. The PSCs based on PTPD-DFDT/PC71BM demonstrated a power conversion efficiency of 5.52%, with a higher open-circuit voltage of 0.96 V. Furthermore, PTPD-DFDT exhibits a simpler molecular structure and easier synthesis steps, which is beneficial for mass production in future.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35598
Appears in Collections:有机固体实验室_期刊论文

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作者单位: 1.Soochow Univ, Coll Chem Chem Engn & Mat Sci, Lab Adv Optoelect Mat, Suzhou 215123, Peoples R China
2.Zhongyuan Univ Technol, Coll Mat & Chem Engn, Zhengzhou 451191, Peoples R China
3.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
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