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Title: Photoluminescence of ZnO nano-tetrapods
Authors: Nguyen, Thi Thuc Hien
Doan, Manh Ha
Ngo, Xuan Dai
Nguyen, Thi Thu Huong
Keywords: Photoluminescence;ZnO nano-tetrapods
Issue Date: 2008
Publisher: H. : ĐHQGHN
Citation: Nguyen, T. T. H, et al. Photoluminescence of ZnO nano-tetrapods. VNU Journal of Science, Mathematics- Physics, 24, 24-29.
Series/Report no.: Journal of Mathematics- Physics
Abstract: The ZnO nano-tetrapods have been prepared by the evaporation of metallic Zn powder at the tem perature range o f 700°C- 950"c in air. The influence of experimental conditions, such as the evaporation temperature and the substrate temperature, on the morphology, the size and the photoluminescence (PL) was investigated. The XRD pattern showed that the nano -tetrapods were ZnO with hexagonal structure. The branch size of the tetrapods was about two hundreds nanometers. The photoluminescence spectrum measured at room temperature consists of two bands, an narrow band at 380 nm (UV band) and a wide band around 500 nm (green band (GB)). The intensity of each band, the ratio of the peak intensity of UV band to the GB band and the GB band position depend on the experiment conditions. However, the peak position of the UV band was not changed.
ISSN: 2588-1124
Language: en
Appears in Collections:Mathematics and Physics

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