Aligned SiC Porous Nanowire Arrays with Excellent Field Emission Properties Converted from Si Nanowires on Silicon Wafer

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• 作者：Yajun Yang ; Guowen Meng ; Xianyun Liu ; Lide Zhang ; Zheng Hu ; Chengyu He ; Yemin Hu
• 刊名：Journal of Physical Chemistry C
• 出版年：2008
• 出版时间：December 25, 2008
• 年：2008
• 卷：112
• 期：51
• 页码：20126-20130
• 全文大小：399K
• 年卷期：v.112,no.51(December 25, 2008)
• ISSN：1932-7455

文摘

Highly oriented SiC porous nanowire (NW) arrays on Si substrate have been achieved via in situ carbonizing aligned Si NW arrays standing on Si substrate. The resultant SiC NW arrays inherit the diameter and length of the mother Si NW arrays. Field emission measurements show that these oriented SiC porous NW arrays are excellent field emitter with large field emission current denstity at very low electric field. The in situ conversion method reported here might be exploited to fabricate NW arrays of other materials containing silicon.