Single-crystalline δ-Ni2Si nanowires with excellent physical properties
1 Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan
2 Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 701, Taiwan
3 Department of Electrical Engineering, National Central University, Tao Yuan, 320, Taiwan
4 Department of Physics, Tamkang University, New Taipei City, 25137, Taiwan
Nanoscale Research Letters 2013, 8:290 doi:10.1186/1556-276X-8-290Published: 19 June 2013
In this article, we report the synthesis of single-crystalline nickel silicide nanowires (NWs) via chemical vapor deposition method using NiCl2·6H2O as a single-source precursor. Various morphologies of δ-Ni2Si NWs were successfully acquired by controlling the growth conditions. The growth mechanism of the δ-Ni2Si NWs was thoroughly discussed and identified with microscopy studies. Field emission measurements show a low turn-on field (4.12 V/μm), and magnetic property measurements show a classic ferromagnetic characteristic, which demonstrates promising potential applications for field emitters, magnetic storage, and biological cell separation.