Light-controlled self-assembly and conductance: from nanoribbons to nanospheres
文献类型：期刊论文
| 作者 | Ma, Lulu ; Jia, Jiong ; Yang, Tieying ; Yin, Guangzhi ; Liu, Yang ; Sun, Xuan ; Tao, Xutang |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2012 |
| 卷号 | 2期号:7页码:2902 |
| ISSN号 | 2046-2069 |
| 英文摘要 | Photoswitchable azobenzene (AZO) chromophores were introduced to the bay-position of the traditional n-type perylene diimide (PDI). Photocontrolled self-assembly behaviours and the influence of the azobenzene substitution on the assembly structure were investigated by UV/vis spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and atomic force microscopy (AFM). Controlled morphological evolution of the nanostructures from ribbons to spheres was facilely realized by driving the azobenzene switching unit with 365 nm light irradiation. The nanoribbons demonstrated highly ordered structures while the order of the molecular arrangement was destroyed in the nanospheres, as a result of the curved molecular conformation induced by photoisomerization. In addition, the conductivity of the single nanoribbon was investigated. Thanks to the one-dimensional long-range ordered pi-pi stacking of the PDI cores, the nanoribbon showed good semiconducting properties with a conductance in the range of 2 x 10(-5) S m(-1) in air. Furthermore, the conductivity decreased with UV light irradiation, mainly due to the increased randomness within the nanostructures, representing the light-induced switching of conductance in the supramolecular systems that is extremely interesting for molecular devices. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000301459900049 |
| 公开日期 | 2013-09-11 |
| 源URL | [http://ir.sinap.ac.cn/handle/331007/12907]  |
| 专题 | 上海应用物理研究所_中科院上海应用物理研究所2011-2017年 |
| 推荐引用方式 GB/T 7714 | Ma, Lulu,Jia, Jiong,Yang, Tieying,et al. Light-controlled self-assembly and conductance: from nanoribbons to nanospheres[J]. RSC ADVANCES,2012,2(7):2902. |
| APA | Ma, Lulu.,Jia, Jiong.,Yang, Tieying.,Yin, Guangzhi.,Liu, Yang.,...&Tao, Xutang.(2012).Light-controlled self-assembly and conductance: from nanoribbons to nanospheres.RSC ADVANCES,2(7),2902. |
| MLA | Ma, Lulu,et al."Light-controlled self-assembly and conductance: from nanoribbons to nanospheres".RSC ADVANCES 2.7(2012):2902. |
入库方式： OAI收割
来源：上海应用物理研究所
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