Mechanical and electronic properties of vanadium oxide nanotubes

被引:25
作者
Sipos, B. [1 ]
Duchamp, M. [1 ]
Magrez, A. [1 ]
Forro, L. [1 ]
Barisic, N. [2 ]
Kis, A. [3 ]
Seo, J. W. [4 ]
Bieri, F. [5 ]
Krumeich, F. [5 ]
Nesper, R. [5 ,7 ]
Patzke, G. R. [6 ,8 ]
机构
[1] Ecole Polytech Fed Lausanne, Inst Phys Complex Matter, CH-1015 Lausanne, Switzerland
[2] Univ Stuttgart, Inst Phys 1, D-70550 Stuttgart, Germany
[3] Ecole Polytech Fed Lausanne, Inst Elect Engn, CH-1015 Lausanne, Switzerland
[4] Katholieke Univ Leuven, Dept Met & Mat Engn, B-3001 Heverlee, Belgium
[5] ETH, Inorgan Chem Lab, CH-8093 Zurich, Switzerland
[6] Univ Zurich, Inst Inorgan Chem, CH-8006 Zurich, Switzerland
[7] Univ Zurich, CH-8093 Zurich, Switzerland
[8] Univ Zurich, Inst Inorgan Chem, CH-8006 Zurich, Switzerland
基金
瑞士国家科学基金会;
关键词
ELASTIC-MODULUS; CARBON NANOTUBES; PENTOXIDE; V2O5; TRANSMISSION; CRYSTALLINE; NANORODS; POLARONS; FILMS;
D O I
10.1063/1.3103280
中图分类号
O59 [应用物理学];
学科分类号
摘要
Vanadium oxide nanotubes with a diameter of 20-100 nm and an aspect ratio of 50-100 were synthesized by hydrothermal method. Young's modulus of 20-80 GPa was obtained by bending measurements of individual nanotubes using an atomic force microscope. Electrical resistivity and thermopower measurements on a large assembly of nanotubes determined the characteristic energies required to put a charge into a polaronic site (Delta E-g = 0.20 eV) and to extract and propagate the polaron between neighboring sites (Delta E-p = 0.09 eV). (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3103280]
引用
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页数:5
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