Silver nanoplate array for vertically aligned P-type ZnO nanorods

Abstract

A monolayer of silver nanoplate was introduced as an epitaxial template and doping source for vertically aligned p-type ZnO nanorods. During the hydrothermal process for the growth of ZnO nanorods, the silver nanoplate was dissolved to generate silver ions in the reaction solution. These silver ions can be doped in the wurzite structure of ZnO. And also the (111) plane of silver nanoplate can be the epitaxial template for the (0001) plane of ZnO. Therefore, using this idea, Ag-doped p-type ZnO nanorods were successfully grown on the substrate, which can be an electrode or n-type semiconductor for the device application. The process to synthesize silver nanoplate was optimized to get high yield for changing the number of the monolayer on a substrate modulated nanoplate and doping concentration. To show the capability of this idea, Schottky and p-n diodes were fabricated and flexible organic-inorganic hybrid lighting emitting diode was also fabricated.