Molecular scale electronic devices
    1.
    发明授权
    Molecular scale electronic devices 失效
    分子秤电子设备

    公开(公告)号:US06756605B1

    公开(公告)日:2004-06-29

    申请号:US09551716

    申请日:2000-04-18

    IPC分类号: H01L3524

    摘要: Molecular scale electronic devices are disclosed. Such devices include at least two conductive contacts, and a conductive path bridging the contacts. The conductive path is able to be written into a perturbed state by a voltage pulse, which can be of high or low conductivity, relative to an initial state. The conductive path comprises organic molecules including at least one electron-withdrawing group. Room temperature negative differential resistance is exhibited by the devices.

    摘要翻译: 公开了分子规模的电子器件。 这样的装置包括至少两个导电触点和桥接触点的导电路径。 导电路径能够被相对于初始状态的电压脉冲写入扰动状态,电压脉冲可以具有高或低导电性。 导电路径包括包括至少一个吸电子基团的有机分子。 器件表现出室温负差分电阻。

    Solvent-based methods for production of graphene nanoribbons
    6.
    发明授权
    Solvent-based methods for production of graphene nanoribbons 有权
    用于生产石墨烯纳米带的基于溶剂的方法

    公开(公告)号:US09493355B2

    公开(公告)日:2016-11-15

    申请号:US14345016

    申请日:2012-09-14

    摘要: The present invention provides methods of preparing functionalized graphene nanoribbons. Such methods include: (1) exposing a plurality of carbon nanotubes (CNTs) to an alkali metal source in the presence of an aprotic solvent to open them; and (2) exposing the opened CNTs to an electrophile to form functionalized graphene nanoribbons (GNRs). The methods may also include a step of exposing the opened CNTs to a protic solvent to quench any reactive species on them. Additional methods include preparing unfunctionalized GNRs by: (1) exposing a plurality of CNTs to an alkali metal source in the presence of an aprotic solvent to open them; and (2) exposing the opened CNTs to a protic solvent to form unfunctionalized GNRs.

    摘要翻译: 本发明提供了制备官能化石墨烯纳米带的方法。 这些方法包括:(1)在非质子溶剂的存在下将多个碳纳米管(CNT)暴露于碱金属源以将其打开; 和(2)将开放的CNT暴露于亲电子试剂以形成官能化的石墨烯纳米带(GNR)。 所述方法还可以包括将开放的CNT暴露于质子溶剂以淬灭其上的任何反应性物质的步骤。 另外的方法包括:通过以下步骤制备未官能化的GNR:(1)在非质子溶剂存在下将多个CNT暴露于碱金属源以打开它们; 和(2)将开放的CNT暴露于质子溶剂以形成未官能化的GNR。

    Fabrication of graphene nanoribbons and nanowires using a meniscus as an etch mask
    7.
    发明授权
    Fabrication of graphene nanoribbons and nanowires using a meniscus as an etch mask 有权
    使用弯月面作为蚀刻掩模制造石墨烯纳米带和纳米线

    公开(公告)号:US09356151B2

    公开(公告)日:2016-05-31

    申请号:US14171642

    申请日:2014-02-03

    摘要: In some embodiments, the present disclosure pertains to methods of preparing graphene nanoribbons from a graphene film associated with a meniscus, where the method comprises patterning the graphene film while the meniscus acts as a mask above a region of the graphene film, and where the patterning results in formation of graphene nanoribbons from the meniscus-masked region of the graphene film. Additional embodiments of the present disclosure pertain to methods of preparing wires from a film associated with a meniscus, where the method comprises patterning the film while the meniscus acts as a mask above a region of the film, and where the patterning results in formation of a wire from the meniscus-masked region of the film. Additional embodiments of the present disclosure pertain to chemical methods of preparing wires from water-reactive materials.

    摘要翻译: 在一些实施方案中,本公开涉及从与弯液面相关联的石墨烯膜制备石墨烯纳米带的方法,其中所述方法包括图案化所述石墨烯膜,同时所述弯液面用作所述石墨烯膜的区域上方的掩模,并且其中所述图案化 导致从石墨烯膜的弯液面掩蔽区域形成石墨烯纳米带。 本公开的另外的实施例涉及从与弯液面相关联的膜制备线的方法,其中所述方法包括图案化所述膜,同时所述弯月面用作所述膜的区域上方的掩模,并且其中所述图案化导致形成 电线从弯月面掩盖的区域。 本公开的另外的实施方案涉及从水反应性材料制备电线的化学方法。

    REBAR HYBRID MATERIALS AND METHODS OF MAKING THE SAME
    9.
    发明申请
    REBAR HYBRID MATERIALS AND METHODS OF MAKING THE SAME 有权
    REBAR混合材料及其制备方法

    公开(公告)号:US20150023858A1

    公开(公告)日:2015-01-22

    申请号:US14335566

    申请日:2014-07-18

    摘要: In some embodiments, the present disclosure pertains to methods of forming a reinforcing material by: (1) depositing a first material onto a catalyst surface; and (2) forming a second material on the catalyst surface, where the second material is derived from and associated with the first material. In some embodiments, the first material includes, without limitation, carbon nanotubes, graphene nanoribbons, boron nitride nanotubes, chalcogenide nanotubes, carbon onions, and combinations thereof. In some embodiments, the formed second material includes, without limitation, graphene, hexagonal boron nitride, chalcogenides, and combinations thereof. In additional embodiments, the methods of the present disclosure also include a step of separating the formed reinforcing material from the catalyst surface, and transferring the separated reinforcing material onto a substrate without the use of polymers. Additional embodiments of the present disclosure pertain to reinforcing materials formed by the aforementioned methods.

    摘要翻译: 在一些实施方案中,本公开涉及通过以下步骤形成增强材料的方法:(1)将第一材料沉积到催化剂表面上; 和(2)在所述催化剂表面上形成第二材料,其中所述第二材料衍生并与所述第一材料相关联。 在一些实施方案中,第一材料包括但不限于碳纳米管,石墨烯纳米带,氮化硼纳米管,硫族化物纳米管,碳鎓和它们的组合。 在一些实施例中,所形成的第二材料包括但不限于石墨烯,六方氮化硼,硫族化合物及其组合。 在另外的实施方案中,本公开的方法还包括将形成的增强材料从催化剂表面分离并将分离的增强材料转移到基材上而不使用聚合物的步骤。 本公开的另外的实施方案涉及通过上述方法形成的增强材料。

    Methods for preparation of graphene nanoribbons from carbon nanotubes and compositions, thin films and devices derived therefrom
    10.
    发明授权
    Methods for preparation of graphene nanoribbons from carbon nanotubes and compositions, thin films and devices derived therefrom 有权
    从碳纳米管和组合物制备石墨烯纳米带的方法,由其衍生的薄膜和器件

    公开(公告)号:US08703090B2

    公开(公告)日:2014-04-22

    申请号:US12544017

    申请日:2009-08-19

    IPC分类号: D01F9/12 C01B31/00 C08F290/14

    摘要: Methods for producing macroscopic quantities of oxidized graphene nanoribbons are disclosed herein. The methods include providing a plurality of carbon nanotubes and reacting the plurality of carbon nanotubes with at least one oxidant to form oxidized graphene nanoribbons. The at least one oxidant is operable to longitudinally open the carbon nanotubes. In some embodiments, the reacting step takes place in the presence of at least one acid. In some embodiments, the reacting step takes place in the presence of at least one protective agent. Various embodiments of the present disclosure also include methods for producing reduced graphene nanoribbons by reacting oxidized graphene nanoribbons with at least one reducing agent. Oxidized graphene nanoribbons, reduced graphene nanoribbons and compositions and articles derived therefrom are also disclosed herein.

    摘要翻译: 本文公开了生产宏观量的氧化石墨烯纳米带的方法。 所述方法包括提供多个碳纳米管并使多个碳纳米管与至少一种氧化剂反应以形成氧化石墨烯纳米带。 至少一种氧化剂可操作以纵向打开碳纳米管。 在一些实施方案中,反应步骤在至少一种酸的存在下进行。 在一些实施方案中,反应步骤在至少一种保护剂的存在下进行。 本公开的各种实施方案还包括通过使氧化石墨烯纳米带与至少一种还原剂反应来生产还原的石墨烯纳米带的方法。 氧化石墨烯纳米带,还原石墨烯纳米带以及由其衍生的组合物和制品也在本文中公开。