Two-dimensional atomic crystals
Two-dimensional atomic crystals
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DOI：
10.1073/pnas.0502848102
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发表时间：
2005-07-26
影响因子：
11.1
通讯作者：
Geim, AK
中科院分区：
文献类型：
--
作者：
Novoselov, KS;Jiang, D;Geim, AK
我们报告独立的原子晶体是严格的二维，可以被看作是个别原子平面拉出散装晶体或作为展开的单壁纳米管。利用微机械劈裂技术，我们制备并研究了各种二维晶体，包括单层氮化硼、石墨、几种双硫属元素和复合氧化物。这些原子级薄片（基本上是不受直接环境保护的巨大2D分子）在环境条件下是稳定的，表现出高晶体质量，并且在宏观尺度上是连续的。
We report free-standing atomic crystals that are strictly 2D and can be viewed as individual atomic planes pulled out of bulk crystals or as unrolled single-wall nanotubes. By using micromechanical cleavage, we have prepared and studied a variety of 2D crystals including single layers of boron nitride, graphite, several dichalcogenicles, and complex oxides. These atomically thin sheets (essentially gigantic 2D molecules unprotected from the immediate environment) are stable under ambient conditions, exhibit high crystal quality, and are continuous on a macroscopic scale.