Title :
Extremely high emission current from carbon nanotube point emitter
Author :
Dong Hoon Shin ; Ki Nam Yun ; Cheol Jin Lee ; Seok-Gy Jeon ; Jung-Il Kim ; Saito, Yuya ; Milne, W.I.
Author_Institution :
Sch. of Electr. Eng., Korea Univ., Seoul, South Korea
Abstract :
We demonstrated a novel point-typed carbon nanotube field emitters using a triangular-shaped carbon nanotube films. We also investigated the field emission properties of the field emitters according to the tip angles. The wider field emitters exhibited higher emission current, and the field emitters with a tip angle of 120° showed extremely high emission current density over 104 A/cm2 (> 10 mA) at a low electric field of 1.24 V/μm.
Keywords :
carbon nanotubes; current density; electric fields; field emission; field emitter arrays; carbon nanotube point emitter; electric field; emission current density; field emission properties; point-typed carbon nanotube field emitters; triangular-shaped carbon nanotube films; Educational institutions; Films; Microwave amplifiers; RNA; Three-dimensional displays; Vacuum technology; carbon nanotube; field emission; high current; point-typed field emitter;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2014 27th International
Conference_Location :
Engelberg
Print_ISBN :
978-1-4799-5306-6
DOI :
10.1109/IVNC.2014.6894828
