| Alkylated-C-60 based soft materials: regulation of self-assembly and optoelectronic properties by chain branching | |
| Department | 清洁能源化学与材料实验室 |
Li HG(李洪光)1,2 ; Babu, Sukumaran Santhosh3; Turner, Sarah T.4; Neher, Dieter4; Hollamby, Martin J.3; Seki, Tomohiro5; Yagai, Shiki5; Deguchi, Yonekazu1,6; Moehwald, Helmuth1; Nakanishi, Takashi1,3; Takashi Nakanishi
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| 2013 | |
| Source Publication | Journal of Materials Chemistry C
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| ISSN | 2050-7526 |
| Volume | 1Issue:10Pages:1943-1951 |
| Abstract | Derivatization of fullerene (C60) with branched aliphatic chains softens C60-based materials and enables the formation of thermotropic liquid crystals and room temperature nonvolatile liquids. This work demonstrates that by carefully tuning parameters such as type, number and substituent position of the branched chains, liquid crystalline C60 materials with mesophase temperatures suited for photovoltaic cell fabrication and room temperature nonvolatile liquid fullerenes with tunable viscosity can be obtained. In particular, compound 1, with branched chains, exhibits a smectic liquid crystalline phase extending from 84 ℃ to room temperature. Analysis of bulk heterojunction (BHJ) organic solar cells with a ca. 100 nm active layer of compound 1 and poly(3-hexylthiophene) (P3HT) as an electron acceptor and an electron donor, respectively, reveals an improved performance (power conversion efficiency, PCE: 1.6 ± 0.1%) in comparison with another compound, 10 (PCE: 0.5 ± 0.1%). The latter, in contrast to 1, carries linear aliphatic chains and thus forms a highly ordered solid lamellar phase at room temperature. The solar cell performance of 1 blended with P3HT approaches that of PCBM/P3HT for the same active layer thickness. This indicates that C60 derivatives bearing branched tails are a promising class of electron acceptors in soft (flexible) photovoltaic devices. |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1039/c3tc00066d |
| Funding Organization | a Grant-in-Aid for Scientic Research on the Innovative Areas of “Emergence in Chemistry” (no. 2010) as well as for KAKENHI (23685033;23111723);PRESTO/JST (2007–2011) from the MEXT, Japan |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 柔性有机太阳能电池研究组 |
| compositor | 第一作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/4658 |
| Collection | 清洁能源化学与材料实验室 |
| Corresponding Author | Takashi Nakanishi |
| Affiliation | 1.Max Planck Inst Colloids & Interfaces, D-14424 Potsdam, Germany 2.Chinese Acad Sci, Lab Clean Energy Chem & Mat, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China 3.Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan 4.Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany 5.Chiba Univ, Grad Sch Engn, Inage Ku, Chiba 2638522, Japan 6.Gunma Natl Coll Technol, Maebashi, Gumma 3718530, Japan |
| Recommended Citation GB/T 7714 | Li HG,Babu, Sukumaran Santhosh,Turner, Sarah T.,et al. Alkylated-C-60 based soft materials: regulation of self-assembly and optoelectronic properties by chain branching[J]. Journal of Materials Chemistry C,2013,1(10):1943-1951. |
| APA | Li HG.,Babu, Sukumaran Santhosh.,Turner, Sarah T..,Neher, Dieter.,Hollamby, Martin J..,...&Takashi Nakanishi.(2013).Alkylated-C-60 based soft materials: regulation of self-assembly and optoelectronic properties by chain branching.Journal of Materials Chemistry C,1(10),1943-1951. |
| MLA | Li HG,et al."Alkylated-C-60 based soft materials: regulation of self-assembly and optoelectronic properties by chain branching".Journal of Materials Chemistry C 1.10(2013):1943-1951. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 4 JMCC.pdf（2063KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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