The influence of annealing atmosphere on the optical properties of flower-like ZnO by Ying Hou, Ming Yang, Guangsheng Pang, and Shouhua Feng

Crystal Research and Technology

Cryst. Res. Technol. 42, 1068 (2007) - Abstract -

The influence of annealing atmosphere on the optical properties of flower-like ZnO

Ying Hou, Ming Yang, Guangsheng Pang, and Shouhua Feng

State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P. R. China

Keywords	zinc oxide, nanostructures, photoluminescence, surface defects
PACS	81.10.-h
DOI	10.1002/crat.200710947

The influence of annealing atmosphere on the optical properties of flower-like ZnO is investigated. The flower-like ZnO is composed of nanosheets. Annealing at 500°C results in the increase of the thickness of nanosheets and the enhancement of UV emission. PL spectra results show that the annealing atmosphere affects the visible emission band, which is sensitive to intrinsic and surface defects in the flower-like ZnO. The vibrational properties of the flower-like ZnO annealing in different atmospheres are characterized by Raman spectra.

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