Tuning field-emission characteristics of ZnO nanorods through defect engineering via O+ ion irradiation

2020 ◽  
Vol 128 (5) ◽  
pp. 054304
Author(s):  
Avanendra Singh ◽  
Kartik Senapati ◽  
Ranveer Singh ◽  
Parasmani Rajput ◽  
Tapobrata Som ◽  
...  
Keyword(s):  
Field Emission ◽  
Ion Irradiation ◽  
Zno Nanorods ◽  
Emission Characteristics ◽  
Defect Engineering

ENHANCEMENT OF FIELD EMISSION CHARACTERISTICS IN ALIGNED MULTIWALLED CARBON NANOTUBES DUE TO 70 MeV Ni6+ ION IRRADIATION

2011 ◽  
Vol 10 (04n05) ◽  
pp. 1057-1060
Author(s):  
BRAHMANANDA CHAKRABORTY ◽  
B. SATPATI ◽  
P. MODAK ◽  
K. S. HAZRA ◽  
P. RAI ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Field Emission ◽  
Low Dose ◽  
Ion Irradiation ◽  
Morphological Changes ◽  
Emission Current Density ◽  
Emission Characteristics ◽  
Electron Microscopic ◽  
Multiwalled Carbon

Here we report the role of ion irradiation in the field emission characteristics of aligned multiwalled carbon nanotubes (MWNTs). Aligned MWNTs show improvement in field emission characteristics under low dose 70 Mev Ni6+ ion irradiation. But field emission current density reduces for the higher dose due to adsorption of amorphous carbon and melting as well damage of carbon nanotubes (CNTs). High resolution transmission electron microscopic (HRTEM) analysis has been carried out to find the morphological changes due to ion irradiation leading to modifications in field emission characteristics. At low dose formation of dangling bond, cross-linking between different layers, exposure of buried emission sites and reduction of mutual shielding are responsible for the enhancement in field emission characteristics.

Formation of aligned ZnO nanorods on self-grown ZnO template and its enhanced field emission characteristics

2010 ◽  
Vol 256 (21) ◽  
pp. 6157-6163 ◽  
Author(s):  
Jai Singh ◽  
Sandip S. Patil ◽  
Mahendra A. More ◽  
Dilip S. Joag ◽  
R.S. Tiwari ◽  
...  
Keyword(s):  
Field Emission ◽  
Zno Nanorods ◽  
Emission Characteristics

Electron Field Emission Characteristics of Silicon Nanodots Formed by the LPCVD Technique

2011 ◽  
Vol 49 (4) ◽  
pp. 342-347
Author(s):  
Kyoungwan Park ◽  
Seungman An ◽  
Taekyung Yim ◽  
Kyungsu Lee ◽  
Jeongho Kim ◽  
...  
Keyword(s):  
Field Emission ◽  
Emission Characteristics ◽  
Electron Field Emission ◽  
Electron Field

Investigation of the temperature dependence of the field emission of ZnO nanorods

2007 ◽  
Vol 18 (22) ◽  
pp. 225703 ◽  
Author(s):  
L Liao ◽  
W F Zhang ◽  
H B Lu ◽  
J C Li ◽  
D F Wang ◽  
...  
Keyword(s):  
Temperature Dependence ◽  
Field Emission ◽  
Zno Nanorods

Electrophoresis deposition and field emission characteristics of planar-gate-type electron source with carbon nanotubes

2008 ◽  
Vol 403 (10-11) ◽  
pp. 1793-1796 ◽  
Author(s):  
Wenhui Lu ◽  
Hang Song ◽  
Yixin Jin ◽  
Hui Zhao ◽  
Haifeng Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Field Emission ◽  
Electron Source ◽  
Emission Characteristics ◽  
Electrophoresis Deposition
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