Graphene composite using easy soluble expanded graphite: Synthesis and emission parameters

Author

Lee, Jong Hak ; Park, J.H. ; Seong Man Yoo ; Makotchenko, V.G. ; Nazarov, A.S. ; Fedorov, V.E. ; Shin, Dong Wook ; Kim, Yu Hee ; Alegaonkar, P.S. ; Choi, Jae-Young ; Kim, Jong Min ; Yoo, Seong Man

Author_Institution

SKKU Adv. Inst. of Nanotechnol. (St.), Sungkyunkwan Univ., Suwon, South Korea

fYear

2009

fDate

20-24 July 2009

Firstpage

19

Lastpage

20

Abstract

In this paper, thin graphene sheet composite have been synthesized and field emission parameters (threshold turn on field, mean field enhancement factor, gamma_m, and emission uniformity) were studied. Electron microscopy analysis revealed that, composite consists of typically 4-6 graphene layers of thickness 1-2 nm. The field emission mainly occurs via edges and folding edges of graphene sheets. The approach described herein is simple, scaleable and offer insight to use graphene sheet composite for future display application and electron sources.

Keywords

composite materials; electron microscopy; field emission; graphene; materials preparation; C; display application; electron microscopy analysis; electron sources; emission uniformity; field emission parameters; graphene sheet composite; material synthesis; mean field enhancement factor; size 1 nm to 2 nm; threshold turn on field; Electron microscopy; Electron sources; Flat panel displays;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Nanoelectronics Conference, 2009. IVNC 2009. 22nd International

Conference_Location

Shizuoka

Print_ISBN

978-1-4244-3587-6

Electronic_ISBN

978-1-4244-3588-3

Type

conf

DOI

10.1109/IVNC.2009.5271675

Filename

5271675