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    Narrow graphene nanoribbons from carbon nanotubes
    6.
    发明授权
    Narrow graphene nanoribbons from carbon nanotubes 有权
    来自碳纳米管的窄石墨烯纳米带

    公开(公告)号：US08236626B2

    公开(公告)日：2012-08-07

    申请号：US12760998

    申请日：2010-04-15

    Applicant: Hongie Dai ,  Liying Jiao

    Inventor： Hongie Dai ,  Liying Jiao

    IPC: H01L21/335

    CPC classification number: H01L29/1606 ,  B82Y30/00 ,  B82Y40/00 ,  H01L51/0558 ,  Y10S977/848 ,  Y10S977/882 ,  Y10S977/888 ,  Y10S977/89 ,  Y10S977/936

    Abstract: Disclosed is a method for making graphene nanoribbons (GNRs) by controlled unzipping of structures such as carbon nanotubes (CNTs) by etching (e.g., argon plasma etching) of nanotubes partly embedded in a polymer film. The GNRs have smooth edges and a narrow width distribution (2-20 nm). Raman spectroscopy and electrical transport measurements reveal the high quality of the GNRs. Such a method of unzipping CNTs with well-defined structures in an array will allow the production of GNRs with controlled widths, edge structures, placement and alignment in a scalable fashion for device integration. GNRs may be formed from nanostructures in a controlled array to form arrays of parallel or overlapping structures. Also disclosed is a method in which the CNTs are in a predetermined pattern that is carried over and transferred to a substrate for forming into a semiconductor device.

    Abstract translation: 公开了通过使用部分嵌入聚合物膜中的纳米管的蚀刻（例如，氩等离子体蚀刻）来控制解压缩诸如碳纳米管（CNT）的结构来制造石墨烯纳米带（GNR）的方法。 GNR具有平滑的边缘和窄的宽度分布（2-20nm）。 拉曼光谱和电气传输测量揭示了GNR的高品质。 将阵列中具有明确定义结构的CNT解压缩的方法将允许以可扩展的方式生产具有受控宽度，边缘结构，放置和对准的GNR，用于器件集成。 GNR可以由受控阵列中的纳米结构形成，以形成平行或重叠结构的阵列。 还公开了一种方法，其中CNT处于被载带并转移到用于形成半导体器件的衬底的预定图案中。

    Carbon nanotube structure-selective separation and surface fixation
    8.
    发明授权
    Carbon nanotube structure-selective separation and surface fixation 有权
    碳纳米管结构选择性分离和表面固定

    公开(公告)号：US07785472B2

    公开(公告)日：2010-08-31

    申请号：US10597790

    申请日：2005-02-10

    Applicant: Kei Murakoshi

    Inventor： Kei Murakoshi

    IPC: B01D15/08 ,  C09C1/44

    CPC classification number: H01M4/96 ,  B82Y15/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/172 ,  C01B2202/02 ,  C01B2202/30 ,  C01B2202/36 ,  G01N2030/8859 ,  G01P15/08 ,  G01P15/0802 ,  H01M4/8605 ,  H01M4/9083 ,  Y10S977/745 ,  Y10S977/748 ,  Y10S977/751 ,  Y10S977/845 ,  Y10S977/848

    Abstract: A method of separating, concentrating or purifying uniform carbon nanotubes with desired properties (diameter, chiral vector, etc) in a highly sensitive manner by the use of structure-sensitive properties peculiar to carbon nanotubes; and an apparatus therefor. There is provided a method of separating, concentrating, or purifying carbon nanotubes with the desired properties contained in a sample, comprising the steps of (a) irradiating a sample containing carbon nanotubes with light; and (b) selecting carbon nanotubes with desired properties. In a preferred embodiment, the light irradiation of the step (a) can be carried out in the presence of a metal so as to cause specified carbon nanotubes to selectively induce a photocatalytic reaction, resulting in metal deposition. Further, in a preferred embodiment, a given magnetic filed can be applied in the steps (b) so as to attain accumulation or concentration or carbon nanotubes with metal deposited.

    Abstract translation: 通过使用碳纳米管特有的结构敏感性质，以高度敏感的方式分离，浓缩或纯化具有所需性质（直径，手性载体等）的均匀碳纳米管的方法; 及其装置。 提供了一种分离，浓缩或净化样品中包含的所需性质的碳纳米管的方法，包括以下步骤：（a）用光照射含有碳纳米管的样品; 和（b）选择具有所需性质的碳纳米管。 在优选的实施方案中，步骤（a）的光照射可以在金属的存在下进行，以使特定的碳纳米管选择性地诱导光催化反应，导致金属沉积。 此外，在优选实施例中，可以在步骤（b）中施加给定的磁场，以便获得积聚或浓缩或者沉积金属的碳纳米管。

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