Mechanical single nanopillars and arrays as field emission devices

被引:0
作者
Qin, Hua [1 ]
Kim, Hyun S. [1 ]
Park, Jonghoo [1 ]
Blick, Robert H. [1 ]
机构
[1] Univ Wisconsin, Dept Elect & Comp Engn, Madison, WI 53706 USA
来源
2008 3RD IEEE INTERNATIONAL CONFERENCE ON NANO/MICRO ENGINEERED AND MOLECULAR SYSTEMS, VOLS 1-3 | 2008年
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We present measurements on single and arrays of mechanically flexible nanopillars placed on thin membranes. These systems find applications as modulated sources for field emission devices. For single nanopillars we find that field emission can be modulated in the range of 10-500 MHz. Single nanopillar devices show Fowler-Nordheim type field emission increased by two orders of magnitude due to their mechanical motion. The wide scale emission from arrays of nanopillars is investigated with the help of a microchannel-plate (MCP) electron multiplier with fluorescence phosphor screen. A stable overall field emission current and microscopic variations of emission pattern with time are observed, where the later is most likely related to the mechanical instability of the nanopillar-on-membrane structure.
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页码:899 / 902
页数:4
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