Mechanical single nanopillars and arrays as field emission devices

Hua Qin, Hyun S. Kim, Jonghoo Park, Robert H. Blick

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

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 mierochannel-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.

Original languageEnglish
Title of host publication3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2008
Pages899-902
Number of pages4
DOIs
StatePublished - 2008
Event3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2008 - Sanya, China
Duration: 6 Jan 20089 Jan 2008

Publication series

Name3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS

Conference

Conference3rd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, NEMS 2008
Country/TerritoryChina
CitySanya
Period6/01/089/01/08

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