Pillar height dependence of field-emission properties in an array of carbon nanotube pillars

Chia Tsung Chang, Chuan Ping Juan, Huang-Chung Cheng

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Carbon nanotube pillars with optimal field-emission properties, including a high field enhancement factor β of 5384 and a low turn-on field E to of 0.84 V/μm, have been achieved when the ratio of interpillar spacing to pillar height is 2. However, when this ratio exceeds 2, the field enhancement factor increases with increasing pillar height since the field can be enhanced by increasing the aspect ratio. When the ratio is smaller than 2, the field enhancement factor decreases with increasing pillar height owing to the increased field-screening effect. A simulation has been performed to verify the experimental results.

Original languageEnglish
Article number085101
JournalJapanese journal of applied physics
Volume52
Issue number8
DOIs
StatePublished - 1 Aug 2013

Fingerprint Dive into the research topics of 'Pillar height dependence of field-emission properties in an array of carbon nanotube pillars'. Together they form a unique fingerprint.

  • Cite this