Effect of CO on the field emission properties of zinc oxide

Author

Jinchan Wang ; Xiaobing Zhang ; Wei Lei ; Fuming Mao ; Yunkang Cui

Author_Institution

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

fYear

2010

fDate

14-16 Oct. 2010

Firstpage

299

Lastpage

300

Abstract

Zinc oxide is a wide band gap semiconductor (WBGS). Its band bending, which usually favors field emission by lowering surface barrier and bringing more electrons to the bottom of conduction band, can be quite dramatic under high field. In the last few years, different kinds of ZnO nano-materials has been synthesized and applied as the cathode materials for field emission. For better application of ZnO in commercial field emission devices, long-term current stability is one of the most important aspects to be ensured. So in this paper, the field emission behavior of screen printing tetrapod ZnO will be studied by exposing to CO, which is the main residual gas in sealed tetrapod ZnO (T-ZnO) field emission device.

Keywords

II-VI semiconductors; band structure; carbon compounds; cathodes; field emission; nanostructured materials; wide band gap semiconductors; zinc compounds; CO; ZnO; ZnO nanomaterials; band bending; cathode materials; conduction band; field emission properties; long-term current stability; residual gas; screen printing tetrapod ZnO; sealed tetrapod ZnO field emission device; surface barrier; wide band gap semiconductor; zinc oxide; Monitoring;

fLanguage

English

Publisher

ieee

Conference_Titel

Vacuum Electron Sources Conference and Nanocarbon (IVESC), 2010 8th International

Conference_Location

Nanjing

Print_ISBN

978-1-4244-6645-0

Type

conf

DOI

10.1109/IVESC.2010.5644311

Filename

5644311