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    • 6. 发明授权
    • Graphene screening and separation method and device
    • 石墨烯筛选分离方法及装置
    • US09365429B2
    • 2016-06-14
    • US14065591
    • 2013-10-29
    • METAL INDUSTRIES RESEARCH&DEVELOPMENT CENTRE
    • Tai-Hsin HsuWen-Bin Jian
    • B03C5/02C01B31/04B03C5/00
    • C01B31/0484B03C5/005B03C5/022C01B32/194
    • A graphene screening and separation method comprises the following steps. At least one pair of electrodes and an energy barrier layer is provided, wherein the pair of electrodes is a first electrode and a second electrode, and the energy barrier layer is formed on the first electrode. The pair of electrodes and the energy barrier layer are covered with a graphene suspension. When a graphene sheet in the graphene suspension materially couples the second electrode and the energy barrier layer and is located above the first electrode, a bias voltage between the first electrode and the second electrode of the pair of electrodes is changed and a corresponding tunneling current is measured. Screening and separation are performed by using differential conductance (i.e., the derivative of the tunneling current with respect to the bias voltage) of different layers of graphene.
    • 石墨烯筛选和分离方法包括以下步骤。 提供至少一对电极和能量阻挡层,其中所述一对电极是第一电极和第二电极,并且所述能量阻挡层形成在所述第一电极上。 一对电极和能量阻挡层被石墨烯悬浮液覆盖。 当石墨烯悬浮体中的石墨烯片材质地耦合第二电极和能量阻挡层并且位于第一电极上方时,改变一对电极的第一电极和第二电极之间的偏置电压,并且相应的隧道电流为 测量。 通过使用不同层石墨烯的微分电导(即,相对于偏置电压的隧穿电流的导数)进行筛选和分离。