The two-dimensional phase of boron nitride:: Few-atomic-layer sheets and suspended membranes

被引：900
作者：
Pacile, D. [1 ,2 ,3 ,4 ]
Meyer, J. C. [1 ,2 ]
Girit, C. Oe. [1 ,2 ]
Zettl, A. [1 ,2 ]
机构：
[1] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA
[2] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA
[3] Univ Calabria, Ist Nazl Fis Nucl, I-87036 Cosenza, Italy
[4] Univ Calabria, Dip Fis, I-87036 Cosenza, Italy
来源：
APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 13期
关键词：
D O I：
10.1063/1.2903702
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We describe the synthesis of very thin sheets (between a few and ten atomic layers) of hexagonal boron nitride (h-BN), prepared either on a SiO2 substrate or freely suspended. Optical microscopy, atomic force microscopy, and transmission electron microscopy have been used to characterize the morphology of the samples and to distinguish between regions of different thicknesses. Comparison is made to previous studies on single- and few-layer graphene. This synthesis opens the door to experimentally accessing the two-dimensional phase of boron nitride.
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