Synthesis of ZnO Nanorod Arrays on Chaleted Sol-Gel-Derived ZnO Thin Films and its Optical Absorption in Visible-Light Region

Abstract:

Well-aligned ZnO nanorod arrays on Chaleted Sol-Gel-Derived ZnO thin films was achieved at a temperature of 90°C by a surfactant-assisted soft chemical approach. The nanorod arrays were characterized by XRD, SEM, XPS, and UV-Vis absorbance spectra. The ZnO nanorod arrays are wurtzite crystal stuctures preferentially orienting in the direction of the c-axis and ZnO nanorods are grown verticallyon the substrate. The XPS analysis shows the Zn:O ratio of ZnO nanorod arrays near is 1:1. The UV-Vis absorbance spectra indicate that ZnO nanorod arrays have absorption of visible-light as well as ultraviolet-light. Therefore, the ZnO nanorods may be good candidates for visible-light photocatalysis materials from the viewpoint of practical applications.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 253-258
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.253
• Online since: August 2013
• Authors: Li Rong Yang, Jun Cong Wei, Li Zhang, Hai Bin Chen
• Keywords: Nanorod Arrays, Optical Absorption Properties, Visible-Light, ZNO

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