公开(公告)号：US20100301212A1

公开(公告)日：2010-12-02

申请号：US12782596

申请日：2010-05-18

申请人： Albert Dato ,  Michael Frenklach ,  Velimir Radmilovic ,  Zonghoon Lee

发明人： Albert Dato ,  Michael Frenklach ,  Velimir Radmilovic ,  Zonghoon Lee

IPC分类号： G01N23/00 ,  C01B31/02

CPC分类号： B82Y40/00 ,  B82Y30/00 ,  C01B32/184

摘要： A substrate-free gas-phase synthesis apparatus and method that is capable of rapidly and continuously producing graphene in ambient conditions without the use of graphite or substrates is provided. Graphene sheets are continuously synthesized in fractions of a second by sending an aerosol consisting of argon gas and liquid ethanol droplets into an atmospheric-pressure microwave-generated argon plasma field. The ethanol droplets are evaporated and dissociated in the plasma, forming graphene sheets that are collected. The apparatus can be scaled for the large-scale production of clean and highly ordered graphene and its many applications. The graphene that is produced is clean and highly ordered with few lattice imperfections and oxygen functionalities and therefore has improved characteristics over graphene produced by current methods in the art. The graphene that is produced by the apparatus and methods was shown to be particularly useful as a support substrate that enabled direct atomic resolution imaging of organic molecules and interfaces with nanoparticles at a level previously unachievable.

摘要翻译： 提供了一种无基板气相合成装置和方法，其能够在不使用石墨或基板的环境条件下快速且连续地生产石墨烯。 通过将由氩气和液体乙醇液滴组成的气溶胶送入大气压微波产生的氩等离子体场，连续合成石墨烯片。 将乙醇液滴蒸发并在等离子体中解离，形成收集的石墨烯片。 该设备可以缩放，用于大规模生产清洁和高度有序的石墨烯及其许多应用。 所生产的石墨烯是清洁且高度有序的，几乎没有晶格缺陷和氧官能度，因此具有比本领域当前方法生产的石墨烯更好的特性。 通过该装置和方法产生的石墨烯被证明是特别有用的支持基底，其能够以先前难以达到的水平直接原子分辨成像有机分子和与纳米颗粒的界面。

公开(公告)号：US07758708B2

公开(公告)日：2010-07-20

申请号：US11831434

申请日：2007-07-31

申请人： David Mitlin ,  Colin Ophus ,  Stephane Evoy ,  Velimir Radmilovic ,  Reza Mohammadi ,  Ken Westra ,  Nathaniel Nelson-Fitzpatrick ,  Zonghoon Lee

发明人： David Mitlin ,  Colin Ophus ,  Stephane Evoy ,  Velimir Radmilovic ,  Reza Mohammadi ,  Ken Westra ,  Nathaniel Nelson-Fitzpatrick ,  Zonghoon Lee

IPC分类号： C22C45/10 ,  C22C27/04

CPC分类号： C23C14/165 ,  B81B2203/0118 ,  B81C1/00666 ,  B81C1/00674 ,  B82Y30/00 ,  C23C14/025 ,  Y10S977/732 ,  Y10S977/81 ,  Y10T428/12431

摘要： A thin-film composition of nanocrystal molybdenum in an amorphous metallic matrix may be formed by co-sputtering Mo with aluminum or nickel. NEMS cantilevers may be formed from the film. The films exhibit high nanoindentation hardness and a reduction in roughness and intrinsic stress, while maintaining resistivity in the metallic range.

摘要翻译： 非晶金属基体中的纳米晶体钼的薄膜组成可以通过与铝或镍共溅射Mo来形成。 NEMS悬臂可以由膜形成。 该膜具有高的纳米压痕硬度和粗糙度和固有应力的降低，同时保持金属范围内的电阻率。