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Branched Silicon Nanotubes and Metal Nanowires via AAO‐Template‐Assistant Approach
Author(s) -
Chen Bensong,
Xu Qiaoling,
Zhao Xianglong,
Zhu Xiaoguang,
Kong Mingguang,
Meng Guowen
Publication year - 2010
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201001190
Subject(s) - materials science , branching (polymer chemistry) , anodizing , nanowire , nanotechnology , nanoelectronics , template , silicon , silane , metal , aluminium , optoelectronics , metallurgy , composite material
Abstract Branched and multi‐generation branched architectures of silicon nanotubes (SiNTs) and metal nanowires (NWs), built via filling the branched and multi‐generation‐branched nanochannels of anodic aluminum oxide (AAO) templates by pyrolysis of silane and electrodeposition of metals, are reported. The AAO templates with branched and multi‐generation‐branched nanochannels are created by sequentially reducing the applied anodizing voltage multiple times during the anodization of aluminum. The desired total generation number of branching can be controlled by the times of voltage reduction during the anodization; while each generation of branching is controlled in terms of branching number, diameter and length. The approach allows precise control over the complexity of the SiNTs and metal NWs with several levels of junctions and branching that have potentials in nanoelectronics, nanomagnetism and nanosystems.