Improved Field Emission Properties of Multidimensional Graphene-Nanotube Emitters Decorated With Au Nanoparticles

Author

Ji Xu ; Qilong Wang ; Ruoxue Jia ; Zhiyang Qi ; Yusheng Zhai ; Xiaobing Zhang

Author_Institution

Sch. of Electron. Sci. & Eng., Southeast Univ., Nanjing, China

Volume

36

Issue

7

fYear

2015

fDate

Jul-15

Firstpage

723

Lastpage

725

Abstract

Improved field emission properties are demonstrated based on the multidimensional graphene-carbon nanotube (G-CNT) emitters decorated with gold nanoparticles (AuNPs). Chemical vapor deposition and screen printing are adopted to prepare the complex structures of G-CNT emitters. The AuNPs decoration of the emitters is implemented by the thermal evaporation and rapid thermal annealing of the Au film. Experimental results reveal that the proposed field emitters can supply a peak current of >17 mA with the current density of 556.05 mA/cm². G-CNTs retain the turn-ON electric field that is <;0.998 V/μm, and the emission has been proved to be very stable.

Keywords

chemical vapour deposition; electric fields; gold; graphene; nanoparticles; nanotubes; printing; rapid thermal annealing; vacuum deposition; Au; chemical vapor deposition; current 17 mA; electric field; field emission properties; multidimensional graphene-carbon nanotube emitters; multidimensional graphene-nanotube emitters; nanoparticles; rapid thermal annealing; screen printing; thermal evaporation; Carbon nanotubes; Current density; Electric fields; Gold; Graphene; Iron; Nanoparticles; Au nanoparticles; Graphene; carbon nanotubes; field emission;

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2015.2438006

Filename

7113831