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Large-scale fabrication of sunflowers-like ZnO nanostructures on patterned sapphire by aqueous solutions

NAISEN YU1,* , LIU YITING2, YAN CONG1, BAOSHENG CAO2, YANG DONG3, YANG TIANPENG3, LIU DONGPING1

Affiliation

  1. Institute of Optoelectronic Technology, School of Mathematics and Physics, Dalian Nationalities University, Dalian 116600, China
  2. School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116600,China
  3. Dalian Lumei optoelectronics Corporation, Dalian 116600, China

Abstract

Large-scale sunflower-like ZnO nanostructures are synthesized on the patterned sapphire by aqueous solutions. Due to the geometry of patterned sapphire, ZnO nanostructures are grown along the upper base and sidewall region on the frustum of a cone shaped sapphire forming sunflower-like morphology as a whole. Photo-fluorescence luminance (PL) spectrum of the sunflower-like nanostructures shows an excellent luminescence property. The large-scale periodical sunflower-like characteristics, make them useful for potential applications in ultra-sensitive gas sensing and exciton based photonic devices.

Keywords

ZnO, Sunflowers-like ZnO nanostructures, Aqueous solutions.

Citation

NAISEN YU, LIU YITING, YAN CONG, BAOSHENG CAO, YANG DONG, YANG TIANPENG, LIU DONGPING, Large-scale fabrication of sunflowers-like ZnO nanostructures on patterned sapphire by aqueous solutions, Optoelectronics and Advanced Materials - Rapid Communications, 4, 6, June 2010, pp.852-854 (2010).

Submitted at: April 2, 2010

Accepted at: June 16, 2010