Title :
Stable field emission from carbon nanotube grown on graphene substrate
Author :
Yugong Zeng ; Zexiang Chen ; Zikai Xie ; Jijun Zhang ; Hai Li
Author_Institution :
Sch. of Opto-Electron. Inf., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
fDate :
June 30 2014-July 4 2014
Abstract :
We reported an approach to grow carbon nanotube (CNT) arrays on graphene to obtain stable high emission current density along with scalable total ultrahigh emission current of more than 200 mA. Microwave plasma CVD was employed to grown multi-layered graphene directly on silicon wafer followed by synthesis of vertically well-aligned patterned CNT arrays, the excellent thermal conductivity and electric conductivity of graphene enabled CNTs to afford large emission current stably.
Keywords :
carbon nanotubes; current density; electrical conductivity; nanofabrication; plasma CVD; thermal conductivity; C; carbon nanotube arrays; electric conductivity; emission current density; field emission; microwave plasma CVD; multilayered graphene substrate; silicon wafer; thermal conductivity; Carbon nanotubes; Conductivity; Current density; Educational institutions; Graphene; Silicon; Substrates;
Conference_Titel :
Vacuum Electron Sources Conference (IVESC), 2014 Tenth International
Conference_Location :
St. Petersburg
Print_ISBN :
978-1-4799-5770-5
DOI :
10.1109/IVESC.2014.6892105
