| 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
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| 2015-02-01 | |
| Source Publication | SCIENCE CHINA-CHEMISTRY
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| Volume | 58Issue:2Pages:357-363 |
| Abstract | 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. |
| Subtype | Article |
| Keyword | Organic Solar Cells Open-circuit Voltage Triphenylamine Rhodanine Derivative |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1007/s11426-014-5281-x |
| WOS Keyword | PHOTOVOLTAIC CELLS ; BULK HETEROJUNCTION ; EFFICIENCY ; ACCEPTOR ; DYE ; ENHANCEMENT ; COPOLYMERS |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Chemistry |
| WOS Subject | Chemistry, Multidisciplinary |
| WOS ID | WOS:000349001500023 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qibebt.ac.cn/handle/337004/6096 |
| Collection | 先进有机功能材料研究组 |
| Affiliation | 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 |
| Recommended Citation 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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