High open-circuit voltage solution-processed organic solar cells based on a star-shaped small molecule end-capped with a new rhodanine derivative | |
Zhou, Yuanhang1,2; Chen, Weichao1; Du, Zhengkun1; Zhu, Dangqiang1,2; Ouyang, Dan1,2; Han, Liangliang1; Yang, Renqiang1 | |
2015-02-01 | |
发表期刊 | SCIENCE CHINA-CHEMISTRY |
卷号 | 58期号:2页码:357-363 |
摘要 | A new star-shaped small molecule named TCNR3TTPA, with a triphenylamine (TPA) unit as the central building block and 2-(1,1-dicyanomethylene)-3-octyl rhodanine (CNR) as the end-capped group, has been designed and synthesized. TCNR3TTPA showed a deep highest occupied molecular orbital (HOMO) energy level (-5.60 eV) and broad absorption. The solution-processed bulk heterojunction (BHJ) solar cells based on TCNR3TTPA:PC61BM (1:1, w/w) exhibited a high open-circuit voltage (V (oc)) of 0.99 V, a short-circuit current density (J (sc)) of 5.76 mA/cm(2), and a power conversion efficiency (PCE) of 2.50% under the illumination of AM 1.5 G, 100 mW/cm(2). The high V (oc) is ascribed to the strong electron-with- drawing ability of the end-capped 2-(1,1-dicyanomethylene)-3-octyl rhodanine group. These results demonstrated that the V (oc) of small-molecule organic solar cells could be increased by introducing a strong electron-withdrawing end-capped block, and that this is an effective strategy to design high-performance small molecules for organic solar cells. |
文章类型 | Article |
关键词 | Organic Solar Cells Open-circuit Voltage Triphenylamine Rhodanine Derivative |
WOS标题词 | Science & Technology ; Physical Sciences |
DOI | 10.1007/s11426-014-5281-x |
关键词[WOS] | PHOTOVOLTAIC CELLS ; BULK HETEROJUNCTION ; EFFICIENCY ; ACCEPTOR ; DYE ; ENHANCEMENT ; COPOLYMERS |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Chemistry |
WOS类目 | Chemistry, Multidisciplinary |
WOS记录号 | WOS:000349001500023 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.qibebt.ac.cn/handle/337004/6096 |
专题 | 先进有机功能材料研究组 |
作者单位 | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Zhou, Yuanhang,Chen, Weichao,Du, Zhengkun,et al. High open-circuit voltage solution-processed organic solar cells based on a star-shaped small molecule end-capped with a new rhodanine derivative[J]. SCIENCE CHINA-CHEMISTRY,2015,58(2):357-363. |
APA | Zhou, Yuanhang.,Chen, Weichao.,Du, Zhengkun.,Zhu, Dangqiang.,Ouyang, Dan.,...&Yang, Renqiang.(2015).High open-circuit voltage solution-processed organic solar cells based on a star-shaped small molecule end-capped with a new rhodanine derivative.SCIENCE CHINA-CHEMISTRY,58(2),357-363. |
MLA | Zhou, Yuanhang,et al."High open-circuit voltage solution-processed organic solar cells based on a star-shaped small molecule end-capped with a new rhodanine derivative".SCIENCE CHINA-CHEMISTRY 58.2(2015):357-363. |
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