Growth control of ZnO crystals grown by electric current heating with thermite reaction

Abstract

Recently we have found a phenomenon that a cluster consisting of ZnO crystals grows on the aluminum powder placed on a ZnO ceramic bar when a certain current runs through the bar. In this report, conditions of the current density and oxygen partial pressure for the cluster growth were investigated. As a result, the cluster grew in current density 70-100 A/cm2 and oxygen partial pressure 10 - 30 kPa.