Fabrication and Field Emission of Flower-like ZnO Nanowhiskers

Abstract

Flower-like nanostructure zinc oxide (ZnO) whiskers have been fabricated on the patterned ITO electrodes with glass panel by a simple hydrothermal growth method. The field emission properties of the flower-like ZnO nano-whiskers have a low field emission threshold voltage (4 V at a current density of 0.1 mA/cm2) and a high current density 1 mA/cm2 at an applied field of 6 V/mum. The low temperature process environment and good field emission properties satisfy with the requirements in the application of fabricating the cathode of field emission display device