One-Minute Room-Temperature Transfer-Free Production of Mono- and Few-Layer Polycrystalline Graphene on Various Substrates.
One-Minute Room-Temperature Transfer-Free Production of Mono- and Few-Layer Polycrystalline Graphene on Various Substrates.
复制标题
在各种基底上一分钟室温无转移生产单层和多层多晶石墨烯
DOI：
10.1038/srep19313
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发表时间：
2016-01-14
影响因子：
4.6
通讯作者：
Yu Y
中科院分区：
文献类型：
--
作者：
Jiang S;Zeng Y;Zhou W;Miao X;Yu Y
石墨烯在各种衬底上的沉积引起了科学界和技术界的广泛关注，具有广泛的应用前景。基片上的石墨烯通常通过两种方法生产，即需要转移步骤的方法和不需要转移的方法。与需要转移步骤的方法相比，无转移方法的程序更简单，成本更低。因此，无转移方法在满足生产方法的工业和商业需求方面具有相当大的潜力。然而，必须克服当前无转移方法的一些限制，例如在生产过程中遇到的高温，相对较长的制造时间，刚性和柔性基板的不兼容性以及无法将该工艺扩展到其他二维（2-D）原子晶体。在这项工作中，开发了一种室温摩擦方法，用于在刚性和柔性衬底上快速无转移生产无缺陷的多晶石墨烯。从廉价的商业获得的石墨粉开始，单层和多层石墨烯可以直接在各种衬底上制造，平均生产时间不到一分钟（从原料石墨到衬底上的石墨烯）。重要的是，该方法可以扩展到其他二维原子晶体。
Graphene deposited on various substrates has attracted the attention of the scientific and technical communities for use in a wide range of applications. Graphene on substrates is commonly produced by two types of methods, namely, methods that require a transfer step and transfer-free methods. Compared with methods that require a transfer step, transfer-free methods have a simpler procedure and a lower cost. Thus, transfer-free methods have considerable potential to meet the industrial and commercial demands of production methods. However, some limitations of the current transfer-free methods must be overcome, such as the high temperatures encountered during production, the relatively long manufacturing times, incompatibilities for both rigid and flexible substrates and an inability to extend the process to other two-dimensional (2-D) atomic crystals. In this work, a room-temperature rubbing method is developed for the rapid transfer-free production of defect-free polycrystalline graphene on rigid and flexible substrates. Starting with inexpensive commercially obtained graphite powder, mono- and few-layer graphene can be fabricated directly on various substrates, with an average production time of less than one minute (from raw graphite to graphene on the substrate). Importantly, this method can be extended to other 2-D atomic crystals.