Pt nanoparticles deposited on ZnO Nanorods based on Field emitter

Abstract

Zinc oxide (ZnO) is II-VI group oxide semicondutor material. It has many excellent material properties, including Chemical stability, thermal stability and optical stability. Moreover, it is also low production cost and easy to produce. Therefore, it has attracted the attention of scientists. Recently, noble metals nanoparticles (NPs) adsorb on ZnO nanostructure can improve the electrical characteristics. In the work, we will be prepared ZnO NRs and Pt NPs deposited on surface of ZnO (Pt/ZnO) NRs to apply in field electron emitter. The current density of the Pt/ZnO sample increased sharply as electric field increased to 2.52 V/μm and the field-enhancement factors β was 1924.98.