Title :
Field emission characteristics of graphite field emitters
Author :
Iwai, Y. ; Koike, Toshiaki ; Jyouzuka, Atsuo ; Nakamura, T. ; Onizuka, Yoshihiro ; Neo, Yoichiro ; Mimura, Hidenori
Author_Institution :
Product Dev. Center, Onizuka Glass Corp., Ome, Japan
Abstract :
We have fabricated two type of graphite field emission cathodes: graphite nanospines (GNS) and graphite field emitters inflamed at high temperatures (GFEIHT) and applied for X-ray tubes using these cathodes. The morphologies and structures of the two cathodes were quite different. However, these emitters have excellent field emission characteristics. Raman spectroscopy indicated that GFEIHT consisted of many graphene tips without crystalline defects.
Keywords :
Raman spectra; X-ray tubes; cathodes; electron field emission; field emitter arrays; graphite; nanostructured materials; C; Raman spectroscopy; X-ray tubes; crystalline defects; field emission characteristics; graphene tips; graphite field emission cathodes; graphite field emitters; graphite nanospines; morphologies; Biomedical imaging; Fabrication; Graphite; X-ray imaging; Graphite field emission cathode;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2014 27th International
Conference_Location :
Engelberg
Print_ISBN :
978-1-4799-5306-6
DOI :
10.1109/IVNC.2014.6894751
