Sol-gel preparation of ZnO films with extremely preferred orientation along (002) plane from zinc acetate solution
1997; Elsevier BV; Volume: 306; Issue: 1 Linguagem: Inglês
10.1016/s0040-6090(97)00231-9
ISSN1879-2731
AutoresMasashi Ohyama, Hiromitsu Kouzuka, Toshinobu Yoko,
Tópico(s)Copper-based nanomaterials and applications
ResumoZnO films with preferred orientation along the (002) plane were fabricated by the sol-gel method using Zn(CH3COO)2 · 2H2O as starting material. A homogeneous and stable solution was prepared by dissolving the zinc acetate in a solution of 2-methoxyethanol and monoethanolamine. ZnO films highly oriented along the (002) plane were obtained by preheating the dip-coating films at temperatures from 200° – 500°C for 10 min after each coating and postheating at temperatures from 500° – 800°C for 1 h. The heat-treatment conditions, the withdrawal speed of the substrate, and the film thickness were found to strongly affect the crystallographic orientation, relative density and morphology of the resultant ZnO films.
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