Correlation between field emission current fluctuation and physisorption of gases in graphite-nanoneedle cold cathode

Author

Matsumoto, T. ; Neo, Y. ; Mimura, H. ; Tomita, M.

Author_Institution

Stanley Electr. Corp., Tsukuba

fYear

2007

fDate

8-12 July 2007

Firstpage

121

Lastpage

122

Abstract

In this paper, we show the emission current fluctuation of graphite nanoneedle cold cathode (GRANN) as a function of cathode temperature in the presence of various gases such as H₂, CO, and He molecules. Field emission current measurements were performed in an atmosphere of the above gas (10^-5-10^-8 torr) over a temperature range of 300 to 1800 K. A high sensitivity quadrupole mass spectrometer was employed to monitor the gas pressure of physisorbed species.

Keywords

adsorption; carbon compounds; cathodes; electron field emission; graphite; helium; hydrogen; mass spectroscopic chemical analysis; nanoelectronics; vacuum microelectronics; C; CO; H₂; He; cathode temperature; field emission current fluctuation; field emission current measurements; gas pressure monitoring; gases physisorption; graphite-nanoneedle cold cathode; high sensitivity quadrupole mass spectrometer; pressure 0.00010 torr to 0.00000010 torr; temperature 300 K to 1800 K; Atmosphere; Cathodes; Current measurement; Fluctuations; Gases; Helium; Mass spectroscopy; Performance evaluation; Temperature distribution; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Nanoelectronics Conference, 2007. IVNC. IEEE 20th International

Conference_Location

Chicago, IL

Print_ISBN

978-1-4244-1133-7

Electronic_ISBN

978-1-4244-1134-4

Type

conf

DOI

10.1109/IVNC.2007.4480959

Filename

4480959