Synthesis of large arrays of aligned α-Fe2O3 nanowires

被引:242
作者
Fu, YY [1 ]
Wang, RM
Xu, J
Chen, J
Yan, Y
Narlikar, A
Zhang, H
机构
[1] Peking Univ, Dept Microelect, Beijing 100871, Peoples R China
[2] Peking Univ, Sch Phys, Phys Mat Lab, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
[3] Peking Univ, Sch Phys, Electron Microscopy Lab, State Key Lab Mesoscop Phys, Beijing 100871, Peoples R China
[4] Peking Univ, Sch Phys, Raman Spect Lab, Beijing 100871, Peoples R China
[5] Inter Univ Consortium DAE Facil, Indore 452017, India
关键词
D O I
10.1016/j.cplett.2003.08.061
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
Aligned alpha-Fe2O3 nanowires over large areas were successfully synthesized by oxidation of pure iron. Most of the assynthesized alpha-Fe2O3 nanowire arrays, grown vertically from the surface of the substrate, are perfect and single crystals with diameters of 20-40 nm and lengths of 2-5 mum. The high surface density of the nanowires (10(8)-10(9) cm(-2)) is considered to be responsible for the aligned growth. The size of the alpha-Fe2O3 nanowires may be tailored to required dimension by adjusting the flowing rate of the gases as well as the time and temperature of reaction. The aligned arrays of alpha-Fe2O3 nanowires reported here offered opportunities for both fundamental research and technological applications. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码:373 / 379
页数:7
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