Electron emission mechanism of diamond characterized using combined XPS/UPS/FES

Hisato Yamaguchi, Takatoshi Yamada, Bradford B. Pate, Masato Kudo, Yuji Takakuwa, Ken Okano

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Diamond has various advantages as an electron emitter in addition to the low-threshold voltage, negative electron affinity (NEA), high thermal conductivity, high mechanical hardness, and high chemical stability. The difficulty in clarification of electron emission mechanism is preventing diamond from being used in the practical use. It is extremely difficult to identify the surface potential of the emitting diamond from conventional Emission current (I)- Anode voltage (V) characteristics. If one could measure the potential of the emitting surface, the band diagram of emitting diamond can be completed. The combined spectroscopy of XPS/UPS/FES specially built for this study, is one of the most powerful tool, which could identify the potential of the emitting surface. In this study, we have succeeded in observing the origin of field-emitted electrons using our combined XPS/UPS/FES system.

Original languageEnglish
Title of host publicationProgress in Semiconductor Materials V - Novel Materials and Electronic and Optoelectronic Applications
Number of pages6
Publication statusPublished - 2006
Event2005 MRS Fall Meeting - Boston, MA, United States
Duration: 2005 Nov 282005 Dec 2

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other2005 MRS Fall Meeting
Country/TerritoryUnited States
CityBoston, MA

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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