Ti5Si4 Nanobats with Excellent Field Emission Properties

详细信息    查看全文

• 作者：Che-Ming Chang ; Yu-Cheng Chang ; Chung-Yang Lee ; Ping-Hung Yeh ; Wei-Fan Lee ; Lih-Juann Chen
• 刊名：Journal of Physical Chemistry C
• 出版年：2009
• 出版时间：May 28, 2009
• 年：2009
• 卷：113
• 期：21
• 页码：9153-9156
• 全文大小：202K
• 年卷期：v.113,no.21(May 28, 2009)
• ISSN：1932-7455

文摘

Bat-shaped nanorods (nanobats) of Ti₅Si₄ were grown on titanium foil by a vapor and condensation method without catalysts. The average diameter of the heads and the tails of the nanobats as well as the length of the nanobats are 25, 15, and 350 nm, respectively. The resistivity of the Ti₅Si₄ nanobat was measured to be 348 Ωμ·cm. Excellent field emission properties were found with the turn-on voltage of the Ti₅Si₄ nanobats at the current density of 1 μA/cm² being 1.47 V/μm and field amplification factor being as high as 1350. The possession of remarkable field emission properties indicates that the Ti₅Si₄ nanobats may be applicable as emitters in flat panel display and vacuum microelectronic devices.