Microstructural Study of ZnO Nanostructures by Rietveld Analysis

• Published in: Journal of nanomaterials Vol. 2011; no. 2011; pp. 1 - 11
• Main Authors: Paraguay-Delgado, Francisco, Pola-Albores, Francisco, Antúnez-Flores, Wilber, Amézaga-Madrid, Patricia, Ríos-Valdovinos, Edna, Miki-Yoshida, Mario
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Puplishing Corporation 01.01.2011; Hindawi Publishing Corporation
• ISSN: 1687-4110; 1687-4129
• DOI: 10.1155/2011/643126

ZnO nanorods were synthesized by induced seeds by chemical bath deposition using hexamethylenetetramine (HMT) as a precipitant agent and zinc nitrate (ZN) as Zn2+ source at 90°C. The influence of reactants ratio was studied from 2 to 0.25 ZN/HMT molar. The results obtained by scanning electron microscopy confirm that the diameter of nanorods was affected directly by the concentration of both zinc and OH− sources. Nanotubes (hollow nanorods) were obtained with high HMT concentrations and were turning over nanorods as HMT concentration decreased. Microstructural information was obtained by Rietveld refinement of grazing incidence X-ray diffraction data. These results evidence low-textured materials with oriented volumes less than 18% coming from (101) planes in Bragg condition.