Optimization of a tip with carbon nanofibers for improved field emission properties

Koji Morita, Yusuke Sakai, Shigetomo Kita, Norihiro Shimoi, Shun Ichiro Tanaka

Research output: Contribution to journalArticlepeer-review

Abstract

To obtain a good field emission (FE) performance, the shape of a Pd/W tip substrate with carbon nanofibers is optimized. We succeeded in maximizing FE current by adjusting the apex angle of the tip. When the apex angle of the tip substrate is nearly 50°, a high FE efficiency and a narrow divergence emission angle for the convergence of the electron beam are obtained, which can be potentially used for the cathode of electrical devices with a low power consumption and a high FE efficiency.

Original languageEnglish
Pages (from-to)902071-902073
Number of pages3
JournalJapanese journal of applied physics
Volume48
Issue number9 Part 1
DOIs
Publication statusPublished - 2009 Dec 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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