Effect of plasma treatment on the growth rate and nanostructure of zinc oxide nanorods

A. Jeong, H. Ryu, N. Browning and J. Yun
Kyungnam University, KR

Keywords: growth, nanorods, photoluminescence, nanostructure

Summary:

Zinc oxide is one of ceramic semiconductors and used for sensors, baristors, piezoelectric devices. Recently, hydrothermal method for fabrication of zinc oxide nanorods was developed, and high performance and new property are expected. In this study, the effect of plasma treatment step inserted in the middle of hydrothermal growth process on the growth rate, photoluminescence property, and nanostructure were examined by x-ray diffraction analysis, optical microscopy, scanning electron microscopy, transmission electron microscopy, energy dispersive x-ray spectroscopy, and scanning transmission electron microscopy. Growth rate was enhanced by plasma treatment. Photoluminescence property was also enhanced. It was found ion concentration on the surface did not change by plasma treatment but the surface roughness changed.