Structure of boron nitride nanoscale cones:: Ordered stacking of 240° and 300° disclinations

被引：109

作者：

Bourgeois, L ^{[1
]}

Bando, Y ^{[1
]}

Han, WQ ^{[1
]}

Sato, T ^{[1
]}

机构：

[1] Natl Inst Res Inorgan Mat, Tsukuba, Ibaraki 3050044, Japan

来源：

PHYSICAL REVIEW B | 2000年 / 61卷 / 11期

关键词：

D O I：

10.1103/PhysRevB.61.7686

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recently discovered boron nitride (BN) nanoscale cone particles are shown to consist of an ordered stacking of seamless conical shells. High-resolution transmission electron microscopy and nanobeam electron diffraction allowed the orientation of the BN hexagonal rings to be determined. In all but one case, the results conformed with a model of orderly stacked 240 degrees disclinations, which is the smallest cone geometry ensuring the presence of B-N bonds only. One case of a nanoscale cone constituted of 300 degrees disclinations was found, implying that structures containing line defects of non-B-N bonds may form.

引用

页码：7686 / 7691

页数：6

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