Department of Mechanical Engineering & Materials Science, Rice University, Houston, Texas 77005, USA.
Adv Mater. 2012 Sep 18;24(36):4878-95. doi: 10.1002/adma.201201792. Epub 2012 Jul 13.
Two-dimensional (2D) atomic layers derived from bulk layered materials are very interesting from both scientific and application viewpoints, as evidenced from the story of graphene. Atomic layers of several such materials such as hexagonal boron nitride (h-BN) and dichalcogenides are examples that complement graphene. The observed unconventional properties of graphene has triggered interest in doping the hexagonal honeycomb lattice of graphene with atoms such as boron (B) and nitrogen (N) to obtain new layered structures. Individual atomic layers containing B, C, and N of various compositions conform to several stable phases in the three-component phase diagram of B-C-N. Additionally, stacking layers built from C and BN allows for the engineering of new van-der-Waals stacked materials with novel properties. In this paper, the synthesis, characterization, and properties of atomically thin layers, containing B, C, and N, as well as vertically assembled graphene/h-BN stacks are reviewed. The electrical, mechanical, and optical properties of graphene, h-BN, and their hybrid structure are also discussed along with the applications of such materials.
二维（2D）原子层是从大块层状材料中衍生出来的，无论从科学还是应用的角度来看都非常有趣，这从石墨烯的故事中可见一斑。许多这样的材料的原子层，如六方氮化硼（h-BN）和二硫化物，都是补充石墨烯的例子。石墨烯的观察到的非常规性质激发了人们对在石墨烯的六方蜂窝晶格中掺杂硼（B）和氮（N）等原子以获得新的层状结构的兴趣。含有不同组成的 B、C 和 N 的单个原子层符合 B-C-N 三元相图中的几个稳定相。此外，由 C 和 BN 构建的堆叠层允许对具有新特性的新型范德华堆叠材料进行工程设计。本文综述了含有 B、C 和 N 的原子层以及垂直组装的石墨烯/h-BN 堆叠的合成、表征和性质。还讨论了石墨烯、h-BN 及其混合结构的电学、力学和光学性质，以及这些材料的应用。
