Electron Emission Mechanism of Diamond

Author

Okano, Ken ; Yamaguchi, Hisato ; Saito, Ichitaro ; Masuzawa, Tomoaki ; Kudo, Yuuki ; Yamada, Takatoshi ; Kudo, Masato ; Takakuwa, Yuuji

Author_Institution

Dept. of Phys., Int. Christian Univ., Tokyo

fYear

2006

fDate

38899

Firstpage

135

Lastpage

135

Abstract

Clarifying the electron emission mechanism of diamond is one of the remaining problems for the realization of diamond cold cathodes for vacuum nano-electronics applications. Diamond is well known to have negative electron affinity (NEA) and an electric field of less than 1 V/mum is required to extract electrons from the surface, whereas much higher field is needed for the conventional metal emitter tips. However, there have been only few reports attempting to clarify the mechanism based on the experimental results. In this study, a combined spectroscopy of XPS/UPS/FES was performed to characterise the electron emission mechanism of diamond. As a result, we have succeeded in drawing the energy band diagram to explain the electron emission from various types of diamond

Keywords

X-ray photoelectron spectra; diamond; electron field emission; surface states; ultraviolet photoelectron spectra; C; FES; UPS; XPS; diamond; electron emission mechanism; energy band diagram; Cathodes; Electron emission; Materials science and technology; Physics; Spectroscopy; Uninterruptible power systems; Vacuum technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Nanoelectronics Conference, 2006 and the 2006 50th International Field Emission Symposium., IVNC/IFES 2006. Technical Digest. 19th International

Conference_Location

Guilin

Print_ISBN

1-4244-0401-0

Type

conf

DOI

10.1109/IVNC.2006.335394

Filename

4134496