Open Access Nano Express

Single-crystalline δ-Ni2Si nanowires with excellent physical properties

Wen-Li Chiu1, Chung-Hua Chiu1, Jui-Yuan Chen1, Chun-Wei Huang1, Yu-Ting Huang1, Kuo-Chang Lu2, Cheng-Lun Hsin3*, Ping-Hung Yeh4 and Wen-Wei Wu1*

Author Affiliations

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

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Nanoscale Research Letters 2013, 8:290  doi:10.1186/1556-276X-8-290

Published: 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.

CVD; Ni2Si nanowires; Field emission; Ferromagnetic characteristic