Inner-tube chirality determination for double-walled carbon nanotubes by scanning tunneling microscopy

被引：29

作者：

Giusca, Cristina E. ^{[1
]}

Tison, Yann ^{[1
]}

Stolojan, Vlad ^{[1
]}

Borowiak-Palen, Ewa ^{[1
]}

Silva, S. Ravi P. ^{[1
]}

机构：

[1] Univ Surrey, Nanoelect Ctr, Adv Technol Inst, Sch Elect & Phys Sci, Guildford GU2 7XH, Surrey, England

来源：

NANO LETTERS | 2007年 / 7卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1021/nl070072p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Evidence for modified electronic structure in double-walled carbon nanotubes with respect to their individual inner and outer constituent single-walled nanotubes is provided by scanning tunneling microscopy and spectroscopy experiments. The contribution originating from the inner tube to the local density of states of the double-walled system was identified in agreement with previous theoretical calculations. Consequently, the chiral index for the inner tube was extracted based on the additional van Hove singularities present in the experimental tunneling spectra.

引用

页码：1232 / 1239

页数：8

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