无缺陷石墨烯尺寸稳定性理论限制探讨  

Investigation of Dimensional Stability Theory Limitation of Defect-free Graphene

作　　者：苏力宏[1] 

机构地区：[1]西北工业大学理学院,陕西西安710129

出　　处：《纳米科技》2011年第5期1-6,23,共7页

摘　　要：石墨烯研究小组获得了2010诺奖，许多研究者对其进行了研究分析和预测。作为二维材料，石墨烯是一个基于石墨构筑单元结构。文章的量子理论计算显示，悬浮石墨烯的稳定尺寸受到量子隧道效应限制，制备超过100微米以上稳定光滑的单层悬浮石墨烯可能性极小。在衬底上石墨烯可以获得高达30英寸以上的尺寸，但是它会容易发生卷曲和破损以获得再次稳定。多层石墨烯尺寸达到数百微米后，基于同样的原因很难分层获得完美光滑的石墨烯。The Graphene research team was awarded Nobel Prize in 2010. Many scientists have devoted to make prediction about the future applications of this nanometer material. Graphene is the name given to a fiat monolayer of carbon atoms tightly packed into a two-dimensional （2D） honeycomb lattice, and is a basic building block for graphitic materials of all other dimensionalities. The quantum theory calculation shows that the size of stable suspended graphene is limited by the boundary carbon bond quantum tunneling. It is very small possibility to synthesize a stable suspended monolayer graphene with side of more than 100 micrometer. The graphene on a base can be prepared for to the size of 70 centimeter; it would easily rapture or quickly crumple to obtain stable again. The multiple layer graphene can obtain with hundreds of micrometer size, but it is difficult to divide to perfect monolayer graphene based on the same reason.

关 键 词：石墨烯 边界化学键 稳定性 尺寸 量子隧道效应 

分 类 号：TB34[一般工业技术—材料科学与工程]