Effects of Calcination Temperature and Zinc Source Concentration on Chemical-Solution Synthesized ZnO Nanorod

• Published in: ECS transactions 2006-10, Vol.3 (9), p.115-121
• Main Authors: Cheong, Kuan Y., Hussin, Hartini, Ismail, Khairul
• Format: Article
• Language: English
• ISSN: 1938-5862; 1938-6737
• DOI: 10.1149/1.2357103

In this paper, ZnO nanoparticles, in particular nanorods, were prepared by a time-saving and a cost effective chemical- solution process. Zinc acetate dehydrates, 2-propanol and diethanolamine were used as the source to produce a well controlled precursor. The effects of calcination temperature (200 to 1000oC) and mole ratio of zinc source to 2-propanol on ZnO particle size and shape were systematically investigated. Results indicated that a single phase and orientated at [0001] direction ZnO has been obtained at calcinations temperature higher than 200oC. In addition, hexagonal-shaped nanorod, with diameter and length ranging from 20 to 150 nm and 100 to 250 nm, respectively, were observed at samples calcinated at 400 and 600{degree sign}C. As the temperature increased beyond 800 {degree sign}C, the sizes of nanoparticles became larger with irregular shape. In contrast, by varying the investigated mole ratio, no significant effect on the shape and size of the nanoparticles were observed.