Influence of process time on ZnO and ZnO:Al nanorods formation

The original results of ZnO and Al-doped ZnO nanorods formation by hydrothermal method on the 128YX-cut lithium niobate and silicon substrates with synthesized seed-layer by sol-gel technique were presented. The influence of process time on morphometric parameters of synthesized nanorods was investigated using scanning electron microscopy. It was ascertained that the length and diameter of the ZnO nanorods increased from 150±10 nm and 55±5 nm to 530±80 nm and 75±20 nm respectively when the process time was increased from 30 min to 120 min for ZnO nanorods on the 128YX-cut lithium niobate substrates. The diameter of Al-doped ZnO nanorods increased from 50±10 nm to 75±15 nm with process time increasing from 30 min to 60 min for samples on silicon substrates. These results could be used for the synthesis of ZnO and Al-doped ZnO nanorods with required morphometric properties on single crystal substrates in development and manufacturing of advanced electronic devices as well as nanoscale devices.