Synthesis of large size ZnO microrods by a simple way of
thermal evaporation
سنتز نانو میله های ZnO با اندازه ی بزرگ با روش تبخیر حرارتی ساده
ABSTRACT
Large sizeneedle-like ZnO microrods with diameters around 100 μm and length of up to2.5 mm have been achieved by asimple method of thermal evaporation of ZnO powder discs in the open air. Metallic catalysts and vacuum condition are not necessary. Both the micro-sized and nano-sized ZnO rods were grown vertically at different sites of the substrate. Theas-synthe sized micro rod sand nanorods are pure ZnO without any other element, and both of them consist of single crystalline cores with hexagonal cross sections.