Magnetic alignment of fluorescent nanowires

被引:253
作者
Tanase, M
Bauer, LA
Hultgren, A
Silevitch, DM
Sun, L
Reich, DH
Searson, PC
Meyer, GJ
机构
[1] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA
[2] Johns Hopkins Univ, Dept Chem, Baltimore, MD 21218 USA
[3] Johns Hopkins Univ, Dept Mat Sci & Engn, Baltimore, MD 21218 USA
关键词
D O I
10.1021/nl005532s
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Nickel nanowires prepared by electrochemical growth in alumina templates have been removed from their templates and functionalized with luminescent porphyrins. The nanowires response to magnetic fields was quantified using video microscopy. In viscous solvents, magnetic fields can be used to orient the nanowires; in mobile solvents, the nanowires form chains in a head-to-tall configuration when a small magnetic field is applied. The dynamics for chain formation have been quantitatively modeled. The results demonstrate a new approach for assembling nanowires.
引用
收藏
页码:155 / 158
页数:4
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