Department of Chemistry, Seoul National University, Seoul, Republic of Korea.
Nanotechnology. 2010 Mar 5;21(9):095601. doi: 10.1088/0957-4484/21/9/095601. Epub 2010 Jan 29.
We have developed a method to fabricate graphene flakes composed of high quality multi-layer graphene sheets using a thermal plasma jet system. A carbon atomic beam was generated by injecting ethanol into Ar plasma continuously; the beam then flowed through a carbon tube attached to the anode. Graphene was made by epitaxial growth where a carbon atomic beam, having the proper energy, collided with a graphite plate. The graphene fabricated was very pure and showed a relatively good crystalline structure. We have demonstrated that the number of layers of graphene sheets could be controlled by controlling the rate of ethanol injection. Our process is a continuous process with a relatively high yield (approximately 8%).
我们开发了一种使用热等离子射流系统制造由高质量多层石墨烯片组成的石墨烯薄片的方法。通过连续将乙醇注入 Ar 等离子体中产生碳原子束；然后该束流经附着在阳极上的碳管。通过外延生长制造石墨烯，其中具有适当能量的碳原子束与石墨板碰撞。制造的石墨烯非常纯净，显示出相对较好的结晶结构。我们已经证明，通过控制乙醇注入的速度可以控制石墨烯片的层数。我们的工艺是一个连续的过程，产率相对较高（约 8%）。
