Crystalline boron nanoribbons: Synthesis and characterization

被引:195
作者
Xu, TT
Zheng, JG
Wu, NQ
Nicholls, AW
Roth, JR
Dikin, DA
Ruoff, RS [1 ]
机构
[1] Northwestern Univ, Dept Mech Engn, Evanston, IL 60208 USA
[2] Northwestern Univ, NUANCE Ctr, Evanston, IL 60208 USA
[3] Univ Illinois, Res Resource Ctr, Chicago, IL 60612 USA
关键词
D O I
10.1021/nl0498785
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Catalyst-free growth of boron nanoribbons was observed by pyrolysis of diborane at 630-750 degreesC and similar to200 mTorr in a quartz tube furnace. Nanodiffraction analysis indicates the nanoribbons are single crystal alpha-tetragonal boron. TEM images show the nanoribbon is covered by a 1-2 nm thick amorphous layer. Elemental analysis by EELS, EDX, and XPS shows the nanoribbons consist of boron with small amounts of oxygen and carbon. Infrared and Raman spectra are also reported.
引用
收藏
页码:963 / 968
页数:6
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