Field emission from nanocrystalline diamond/carbon nanowall composite films deposited on scratched substrates

C. Y. Cheng, M. Nakashima, K. Teii

研究成果: 書籍/レポート タイプへの寄稿会議への寄与

1 被引用数 (Scopus)

抄録

We report the deposition and field emission properties of nanostructured composites consisting of carbon nanowalls (CNWs) and nanocrystalline diamond films by introducing two kinds of substrate scratching pretreatment, i.e., undulation and ultrasonic vibration. With increasing duration of scratching pretreatment, the morphology of the deposits changes from simple CNWs to a film/CNW composite and lastly to CNWs on a film, and then the space between the walls is increased. The emission turn-on field is reduced from 2.1 V/μm for simple CNWs to around 1.2 V/μm for the composite films, accompanied by an increase in field enhancement factor. The results indicate that electric field screening between the walls is successfully suppressed by widening of the wall spacing.

本文言語英語
ホスト出版物のタイトルDiamond Electronics and Biotechnology - Fundamentals to Applications V
ページ87-91
ページ数5
DOI
出版ステータス出版済み - 2012
イベント2011 MRS Fall Meeting - Boston, MA, 米国
継続期間: 11月 28 201112月 2 2011

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1395
ISSN(印刷版)0272-9172

その他

その他2011 MRS Fall Meeting
国/地域米国
CityBoston, MA
Period11/28/1112/2/11

!!!All Science Journal Classification (ASJC) codes

  • 材料科学(全般)
  • 凝縮系物理学
  • 材料力学
  • 機械工学

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