Title :
A Stable Field-Emission Light Source With ZnO Nanoemitters
Author :
Wei, Lei ; Zhang, Xiaobing ; Wang, Baoping ; Lou, Chaogang ; Zhu, Zuoya ; Zhao, Zhiwei ; Chi, Li ; Kai, Hou
Author_Institution :
Southeast Univ., Nanjing
fDate :
5/1/2008 12:00:00 AM
Abstract :
A field-emission cathode is fabricated with ZnO tetrapodlike nanoemitters. With a simple planar triode structure, a cathodoluminescent light source has been investigated. Because of the characteristics of surface-conduction electron-emission planar triode, this cathodoluminescent light source shows a very good performance. As experimental results show, the turn-on electric field is about 1 V/mum, whereas the current density is 1 muA/cm2. The threshold electric field is 1.6 V/mum, whereas the current density is 1 mA/cm2. When a pulse voltage with 4% duty cycle is applied on the gate electrode, the fluctuation of anode current is smaller than 15 % during 200 h.
Keywords :
cathodoluminescence; current density; field emission displays; light sources; nanostructured materials; zinc compounds; anode current; cathodoluminescent light source; current density; field-emission cathode; planar triode structure; pulse voltage; stable field-emission light source; surface-conduction electron-emission planar triode; tetrapodlike nanoemitters; threshold electric field; Anodes; Diodes; Displays; Electrodes; Furnaces; Lamps; Light sources; Nanostructures; Pulse amplifiers; Zinc oxide; Field-emission light source; ZnO tetrapodlike emitter; planar triode;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2008.920465
