title: Low-temperature fabrication of bunch-shaped ZnO nanowires using a sodium hydroxide aqueous solution.
abstract: Bunch-shaped ZnO nanowires film was successfully fabricated by the forced-hydrolysis-initiated-nucleation of anhydrous zinc acetate in an aqueous solution of zinc acetate and sodium hydroxide at low temperature. X-ray diffraction and a field emission scanning electron microscope clarified their formation mechanism and morphology development. The morphology was controllable by adjusting the solution temperature and deposition time. ZnO nanowires obtained at 65 degrees C for 6 h have a high aspect ratio of about 106. The smaller diameter with higher aspect ratio of ZnO nanowires, the easier the formation of bunch shapes by the capillary force during the drying process. This fabrication technique indicated that bunched ZnO film was prepared at low cost, and fittable to low heat-resistance substrates such as a polymer substarte.
authors.affiliation: Advanced Manufacturing Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 2266-98 Anagahora, Shimoshidami, Moriyama-ku, Nagoya 463-8560, Japan.
authors.forename: Xiulan
authors.initials: X
authors.lastname: Hu
authors.forename: Yoshitake
authors.initials: Y
authors.lastname: Masuda
authors.forename: Tatsuki
authors.initials: T
authors.lastname: Ohji
authors.forename: Nagahiro
authors.initials: N
authors.lastname: Saito
authors.forename: Kazumi
authors.initials: K
authors.lastname: Kato