Title :
High performance field emission of carbon nanotube field emitters fabricated on a graphite rod after thermal annealing
Author :
Yuning Sun ; Dong Hoon Shin ; Ki Nam Yun ; Leti, Guillaume ; Sang Heon Lee ; Cheol Jin Lee ; Yoon-Ho Song
Author_Institution :
Sch. of Electr. Eng., Korea Univ., Seoul, South Korea
Abstract :
We demonstrated high performance field emission of carbon nanotube (CNT) field emitters fabricated on a graphite rod. After the thermal annealing at 900 °C in vacuum ambient, the emitter showed a high emission current of 11.3 mA, corresponding to an emission current density of 5.8 A/cm2. The CNT emitter indicated a low turn-on field of 1.9 V/μm and stable emission stability at a current of 1 mA. In addition, it also showed a small and uniform emission pattern at the phosphor coated ITO glass. The CNT field emitter can be a good candidate for X-ray source applications.
Keywords :
annealing; carbon nanotubes; current density; field emission; graphite; phosphors; CNT emitter; X-ray source application; carbon nanotube field emitter; current 1 mA; current 11.3 mA; emission current density; graphite rod; high performance field emission; phosphor coated ITO glass; thermal annealing; Annealing; Carbon nanotubes; Current density; Films; Graphite; Sun; Thermal stability; carbon nanotubes; field emission; graphite rods; thermal annealing;
Conference_Titel :
Vacuum Nanoelectronics Conference (IVNC), 2015 28th International
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4673-9356-0
DOI :
10.1109/IVNC.2015.7225554
