Title :
Preparation and optical properties research of ZnO nanorod arrays
Author :
Quanfu, Yang ; Haifeng, Wang ; Dunliang, Jian ; Chao, Liu ; Ting, Li ; Haimeng, Wang ; Gang, Wang ; Chen, Meng ; Zhaolong, Wang ; Shulin, Wang
Author_Institution :
Sch. of Energy & Power Eng., Univ. of Shanghai for Sci. & Technol., Shanghai, China
Abstract :
ZnO nanorod arrays were prepared by solution deposition on FTO substrate with ZnO nanoparticles. The effects of concentration of growth solution on the morphology and optical properties of ZnO nanorod arrays were investigated. X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission spectra and photoluminescence spectrum were used to characterize the crystal structures, morphology and optical properties of the ZnO nanorod arrays. XRD pattern indicates the as-prepared ZnO nanorods are hexagonal wurtzite structures and grow along c-axis. SEM results show that the ZnO nanorod arrays are dense arranged and the orientation shows good consistence. Optical study reveals the ZnO nanorod arrays exhibit high transmittance in visible domain and have a strong near-band ultraviolet emission at 378 nm. It can be expected that the structural defects decrease greatly with the decrease of the growth solution concentration.
Keywords :
II-VI semiconductors; X-ray diffraction; field emission electron microscopy; liquid phase deposition; nanofabrication; nanorods; photoluminescence; scanning electron microscopy; semiconductor growth; surface morphology; ultraviolet spectra; visible spectra; wide band gap semiconductors; zinc compounds; FESEM; SiO2-ZnO; X-ray diffraction; XRD; ZnO; crystal structure; field emission scanning electron microscopy; hexagonal wurtzite structures; nanoparticles; near-band ultraviolet emission; optical properties; photoluminescence spectra; solution deposition; structural defects; surface morphology; transmission spectra; ultraviolet-visible spectra; zinc oxide nanorod arrays; Coatings; Fluorescence; Self-assembly; X-ray scattering; Zinc oxide; ZnO nanorod arrays; concentration of growth solution; optical property; sole-gel; solution deposition;
Conference_Titel :
Materials for Renewable Energy & Environment (ICMREE), 2011 International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-749-8
DOI :
10.1109/ICMREE.2011.5930610