title: ZnO nanorods with low intrinsic defects and high optical performance grown by facile microwave-assisted solution method.
abstract: Vertically aligned ZnO nanorods were grown at 90 °C by both microwave synthesis and traditional heated water bath method on Si (100) substrate with a precoated ZnO nanoparticle seed layer. A detailed comparison in the morphology, defects, and optical properties of the ZnO nanorods grown by the two methods across the pH range of 10.07-10.9 for microwave synthesis and conventional heated water bath method was performed using scanning electron microscopy, photoluminescence, and X-ray photoelectron spectroscopy. The results show that the microwave route leads to more uniformly distributed nanorods with a lower density of native defects of oxygen interstitials and zinc vacancies. The microwave synthesis presents a promising new approach of fabricating metal oxide nanostructures and devices toward green applications.
authors: Electrical and Computer Engineering, National University of Singapore , Singapore 117576.
authors: Jie
authors: J
authors: Tang
authors: Jianwei
authors: J
authors: Chai
authors: Jian
authors: J
authors: Huang
authors: Liyuan
authors: L
authors: Deng
authors: Xuan S
authors: XS
authors: Nguyen
authors: Linfeng
authors: L
authors: Sun
authors: T
authors: T
authors: Venkatesan
authors: Zexiang
authors: Z
authors: Shen
authors: Chuan Beng
authors: CB
authors: Tay
authors: Soo Jin
authors: SJ
authors: Chua
keywords: ZnO; defects; microwave synthesis; photoluminescence