Anisotropy in the X-ray absorption of vertically aligned single wall carbon nanotubes

被引：7
作者：
Kramberger, C.
Shiozawa, H.
Rauf, H.
Gruneis, A.
Rummeli, M. H.
Pichler, T.
Buechner, B.
Batchelor, D.
Einarsson, E.
Maruyama, S.
机构：
[1] IFW Dresden, D-01069 Dresden, Germany
[2] Univ Wurzburg, D-12489 Berlin, Germany
[3] Univ Tokyo, Dept Mech Engn, Tokyo 1138656, Japan
来源：
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2007年 / 244卷 / 11期
关键词：
D O I：
10.1002/pssb.200776167
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Carbon nanotubes are archetypical one dimensional systems, with peculiar anisotropic electronic properties. Only recently mu m thick films of vertically aligned SWNT became available. The vertical alignment of the nanotube mats allows the realization of scattering geometries promoting specific dipole transitions parallel and normal to the axis of the SWNT. We find well expressed mosaic spreads for the pi* and sigma* resonances. Full three dimensional modelling of the dipole transitions as well as of the alignment demonstrate polarization dependent X-ray absorption to be an accurate, versatile non destructive and reliable tool to quantify the alignment of SWNT on a bulk scale. @ 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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收藏
页码：3978 / 3981
页数：4
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