Modulating the Electronic Properties along Carbon Nanotubes via Tube-Substrate Interaction

被引：46

作者：

Soares, Jaqueline S. ^{[1
]}

Barboza, Ana Paula M. ^{[1
]}

Araujo, Paulo T. ^{[1
]}

Barbosa Neto, Newton M. ^{[1
,2
]}

Nakabayashi, Denise ^{[1
]}

Shadmi, Nitzan ^{[3
]}

Yarden, Tohar S. ^{[3
]}

Ismach, Ariel ^{[3
]}

Geblinger, Noam ^{[3
]}

Joselevich, Ernesto ^{[3
]}

Vilani, Cecilia ^{[4
]}

Cancado, Luiz G. ^{[1
,5
]}

Novotny, Lukas ^{[5
]}

Dresselhaus, Gene ^{[6
]}

Dresselhaus, Mildred S. ^{[7
,8
]}

Neves, Bernardo R. A. ^{[1
]}

Mazzoni, Mario S. C. ^{[1
]}

Jorio, Ado ^{[1
]}

机构：

[1] Univ Fed Minas Gerais, Dept Fis, BR-31270901 Belo Horizonte, MG, Brazil

[2] Univ Fed Uberlandia, Inst Fis, BR-38400902 Uberlandia, MG, Brazil

[3] Weizmann Inst Sci, Dept Mat & Interfaces, IL-76100 Rehovot, Israel

[4] Inst Nacl Metrol Normalizacao & Qualidade Ind INM, Div Mat Metrol, BR-25250020 Duque De Caxias, RJ, Brazil

[5] Univ Rochester, Inst Opt, Rochester, NY 14627 USA

[6] MIT, Francis Bitter Magnet Lab, Cambridge, MA 02139 USA

[7] MIT, Dept Phys, Cambridge, MA 02139 USA

[8] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

来源：

NANO LETTERS | 2010年 / 10卷 / 12期

基金：

以色列科学基金会;

关键词：

Carbon nanotubes; tube-substrate interaction; Raman spectroscopy; electric force microscopy; quartz; PHONON RENORMALIZATION; GRAPHENE NANORIBBONS; RAMAN-SPECTROSCOPY;

D O I：

10.1021/nl103245q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We study single wall carbon nanotubes (SWNTs) deposited on quartz Their Raman spectrum depends on the tube substrate morphology and in some cases it shows that the same SWNT on quartz system exhibits a mixture of semiconductor and metal behavior depending on the orientation between the tube and the substrate We also address the problem using electric force microscopy and ab initio calculations both showing that the electronic properties along a single SWNT are being modulated via tube substrate interaction

引用

页码：5043 / 5048

页数：6

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