具有优异物理性能的单晶 δ-Ni2Si 纳米线。

Single-crystalline δ-Ni2Si nanowires with excellent physical properties.

机构信息

Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan.

出版信息

Nanoscale Res Lett. 2013 Jun 19;8(1):290. doi: 10.1186/1556-276X-8-290.

DOI:10.1186/1556-276X-8-290

PMID:23782805

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3691636/

Abstract

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.

摘要

本文通过化学气相沉积法，以 NiCl2·6H2O 为单一源前驱体，合成了单晶镍硅化物纳米线（NWs）。通过控制生长条件，成功获得了不同形貌的 δ-Ni2Si NWs。通过显微镜研究，深入探讨并确定了 δ-Ni2Si NWs 的生长机制。场发射测量显示出较低的开启场（4.12 V/μm），磁性测量显示出典型的铁磁性特征，这表明其在场发射体、磁存储和生物细胞分离等方面具有潜在的应用前景。