The effects of nitrogen and boron doping on the optical emission and diameters of single-walled carbon nanotubes

被引：54

作者：

Li, Lain-Jong

Glerup, M.

Khlobystov, A. N.

Wiltshire, J. G.

Sauvajol, J. -L.

Tavlor, R. A.

Nicholas, R. J.

机构：

[1] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England

[2] Univ Oslo, Dept Chem, N-0315 Oslo, Norway

[3] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England

[4] Univ Montpellier 2, UMR5881, LCVN, F-34095 Montpellier 5, France

来源：

CARBON | 2006年 / 44卷 / 13期

基金：

英国工程与自然科学研究理事会;

关键词：

carbon nanotubes; doped carbon; luminescence; transmission electron microscopy;

D O I：

10.1016/j.carbon.2006.03.037

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Using TEM, absorption and photoluminescence-excitation spectroscopy we have shown that nitrogen and nitrogen/boron doping of single-walled carbon nanotubes produce significant changes in both the optical properties and the diameter distribution of nanotubes produced by the arc-discharge method. Smaller diameter tubes are preferentially formed in the presence of boron. In addition the presence of nitrogen is found to significantly affect the emission properties of the nanotube ensemble, causing a shift in the dominant emission to lower energies, possibly due to changes in the bundling structure of the nanotubes in solution, but only very small changes are observed in the emission energies for individual nanotubes. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：2752 / 2757

页数：6

共 34 条

[1] Narrow (n,m)-distribution of single-walled carbon nanotubes grown using a solid supported catalyst [J].