Effects of O2, H2, and N2 gases on the field emission properties of diamond-coated microtips

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This article discusses the effects of O2, H2, and N2 gases on the field emission properties of diamond-coated microtips.

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3 p.

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Lim, Seong-Chu; Stallcup, Richard E.; Akwani, Ikerionwu A. & Pérez, José M. August 23, 1999.

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This article discusses the effects of O2, H2, and N2 gases on the field emission properties of diamond-coated microtips.

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3 p.

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Copyright 1999 American Institute of Physics. Applied Physics Letters, 75:8, http://apl.aip.org/resource/1/applab/v75/i8/p1179_s1

Abstract: We report the effects of O2, H2, and N2 residual gases on the field emission properties of uncoated and diamond-coated individual Mo microtips. The microtips are made using electrochemical etching techniques and positioned 5 µm from the anode using a scanning tunneling microscopy system. The authors observe that the field emission (FE) current and turn-on voltage of diamond-coated microtips are significantly less degraded by O2 exposure that those of uncoated Mo microtips. H2 exposure enhances the FE properties of both uncoated and diamond-coated microtips, while N2 exposure does not have any significant effect.

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  • Applied Physics Letters, 1999, College Park: American Institute of Physics, pp. 1179-1181

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  • Publication Title: Applied Physics Letters
  • Volume: 75
  • Issue: 8
  • Page Start: 1179
  • Page End: 1181
  • Peer Reviewed: Yes

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  • August 23, 1999

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  • May 4, 2012, 10:15 a.m.

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  • March 27, 2014, 4:24 p.m.

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Lim, Seong-Chu; Stallcup, Richard E.; Akwani, Ikerionwu A. & Pérez, José M. Effects of O2, H2, and N2 gases on the field emission properties of diamond-coated microtips, article, August 23, 1999; [College Park, Maryland]. (digital.library.unt.edu/ark:/67531/metadc84151/: accessed June 27, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT College of Arts and Sciences.