Title :
Field emission properties of carbon nanotube paste on cathode with a curved surface for microwave power amplifier
Author :
Han, Jae-Hee ; Park, Jae Hong ; Berdinsky, A.S. ; Yoo, Ji-Beom ; Park, Chong-Yun ; Kim, Hae Jin ; Choi, Jin Ju ; Nam, Joong-Woo ; Lee, Chun Kyu
Author_Institution :
Center for Nanotubes & Nanostructured Composites, Sungkyunkwan Univ., Suwon, South Korea
Abstract :
In this report, we present field emission properties of the carbon nanotube (CNT) paste on cathode with a curved surface for MPA. The CNT paste was prepared using a mixture of multiwalled CNTs powders synthesized by chemical vapor deposition method, organic vehicles, and inorganic binders. We made use of both spin on glass (SOG) and a sensitizer as an inorganic binder and additive to the CNT paste. Then the paste was rubbed over a round cathode (diameter, D-4.3 mm) with a curved surface (a radius of curvature, R∼9.7 mm) designed specifically for our X-band (8-12 GHz) TWT-MPA.
Keywords :
carbon nanotubes; chemical vapour deposition; field emitter arrays; thermionic cathodes; C; additive; carbon nanotube paste; cathode; chemical vapor deposition; curved surface; field emission; inorganic binder; microwave power amplifier; sensitizer; spin on glass; Carbon nanotubes; Cathodes; Design engineering; Electron tubes; High power amplifiers; Microwave amplifiers; Operational amplifiers; Power amplifiers; Pulse amplifiers; Voltage;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2005. IVNC 2005. Technical Digest of the 18th International
Print_ISBN :
0-7803-8397-4
DOI :
10.1109/IVNC.2005.1619541
