title: Low-temperature growth of ZnO nanorods by chemical bath deposition.
abstract: Aligned ZnO nanorod arrays were synthesized using a chemical bath deposition method at normal atmospheric pressure without any metal catalyst. A simple two-step process was developed for growing ZnO nanorods on a PET substrate at 90-95 degrees C. The ZnO seed precursor was prepared by a sol-gel reaction. ZnO nanorod arrays were fabricated on ZnO-seed-coated substrate. The ZnO seeds were indispensable for the aligned growth of ZnO nanorods. The ZnO nanorods had a length of 400-500 nm and a diameter of 25-50 nm. HR-TEM and XRD analysis confirmed that the ZnO nanorod is a single crystal with a wurtzite structure and its growth direction is [0001] (the c-axis). Photoluminescence measurements of ZnO nanorods revealed an intense ultraviolet peak at 378.3 nm (3.27 eV) at room temperature.
authors.affiliation: School of Advanced Materials Engineering, Kookmin University, Seoul 136-702, South Korea.
authors.forename: Sung-Hak
authors.initials: SH
authors.lastname: Yi
authors.forename: Seung-Kyu
authors.initials: SK
authors.lastname: Choi
authors.forename: Jae-Min
authors.initials: JM
authors.lastname: Jang
authors.forename: Jung-A
authors.initials: JA
authors.lastname: Kim
authors.forename: Woo-Gwang
authors.initials: WG
authors.lastname: Jung