Enhancement of electron emission characteristics of platform-shaped Mo emitters by diamond-like carbon coatings

Chin Maw Lin, Shoou-Jinn Chang, Meiso Yokoyama, I. Nan Lin, Feng Yu Chuang, Chun Hui Tsai, Wen Chun Wang

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The effect of diamond-like carbon (DLC) films coated by the pulsed laser deposition technique on the electron field emission characteristics of platform-shaped Mo emitters was investigated. It was observed that DLC coatings can significantly enhance electron emission. The gate-to-cathode operating voltage (for an anode current density of 1 mA/cm2) was lowered from 50 V for uncoated platform-shaped Mo emitters to 20 V for DLC-coated platform-shaped Mo emitters. The lifetime of the DLC-coated emitters is at least twice, that of the uncoated ones. Moreover, the DLC-coated platform-shaped Mo emitters exhibited durability superior to that of the DLC-coated Spindt-type emitters, which was due to the abundance of emission sites in the platform-shaped Mo emitters.

Original languageEnglish
Pages (from-to)3700-3704
Number of pages5
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume38
Issue number6 A
Publication statusPublished - 1999 Jun 1

All Science Journal Classification (ASJC) codes

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

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