High Aspect Ratio Ternary Zn1–xCdxO Nanowires by Electrodeposition for Light-Emitting Diode Applications

Abstract

We present a combined experimental and computational approach to study Zn1–xCdxO nanowires (NWs) and their integration in light-emitting diode (LED) structures. Self-standing Zn1–xCdxO NWs have been electrodeposited on fluorine-doped tin oxide and p-GaN substrates. The electrochemical behavior has been studied, and the reaction mechanism is discussed. Low-dimensional Zn1–xCdxO structures have been obtained for CdCl2 concentrations in the deposition bath lower than 6 μM whereas at higher concentration it is admixed with crystallized CdO and the aspect ratio of the wires is decreased.