Field emission from cobalt-containing amorphous carbon composite films heat-treated in an acetylene ambient

Y. J. Li, Shu Ping Lau, B. K. Tay, Z. Sun, G. Y. Chen, J. S. Chen, X. Z. Ding, X. Shi

Research output: Journal article publicationJournal articleAcademic researchpeer-review

18 Citations (Scopus)


Cobalt-containing amorphous carbon composite films have been prepared by the filtered cathodic arc technique using a cobalt-containing graphite target at room temperature. After heat treatment at 550°C in a mixture of acetylene and nitrogen gases, the field emission properties were significantly improved. A threshold electric field of 1.7 V/μm and an emission site density of 105/cm2were obtained without conditioning. The composite films, which can be deposited with a high rate at room temperature and require a relatively low temperature heat-treatment process to enhance electron emission, are promising for practical applications in field emission display.
Original languageEnglish
Pages (from-to)2021-2023
Number of pages3
JournalApplied Physics Letters
Issue number13
Publication statusPublished - 25 Sep 2000
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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