Enhanced field emission properties of carbon nanotubes by coating diamond-like carbon layer

Author

Feng He ; Zhenjun Li ; Chi Li ; Hang Zhou ; Qing Dai

Author_Institution

Shenzhen Grad. Sch., Peking Univ., Shenzhen, China

fYear

2014

fDate

28-31 Oct. 2014

Firstpage

1

Lastpage

3

Abstract

Diamond-like carbon (DLC) coated carbon nanotubes (CNTs) can obtain dramatically enhanced properties of field emission compared to the pristine CNTs. After coated the DLC layer, the threshold field and current density can be improved remarkably. When the current density arrived at 5mA/cm², the electric field of DLC-coated CNTs was 1.88V/μm, much smaller than the value of pristine CNT arrays which was 3.03 V/μm. And compared to the pristine CNTs, the field emission current density from the DLC-coated CNTs was much larger at electric field 4.0V/μm. The current density of the DLC-coated CNT arrays was 80mA/cm², while that of the pristine CNT arrays was 51mA/cm².

Keywords

carbon nanotubes; coatings; current density; diamond-like carbon; electron field emission; nanocomposites; C-C; CNT array; DLC; carbon nanotube; current density; diamond-like carbon layer coating; electric field; enhanced field emission properties; threshold field; Abstracts; Aluminum; Instruments; Magnetic properties;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on

Conference_Location

Guilin

Print_ISBN

978-1-4799-3296-2

Type

conf

DOI

10.1109/ICSICT.2014.7021694

Filename

7021694