Synthesis and characterization of Mn-doped ZnO column arrays

Mn-doped ZnO column arrays were successfully synthesized by conventional sol–gel process. Effect of Mn/Zn atomic ratio and reaction time were investigated, and the morphology, tropism and optical properties of Mn-doped ZnO column arrays were characterized by SEM, XRD and photoluminescence (PL) spect...

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Bibliographic Details
Published in:Applied surface science 2010-04, Vol.256 (13), p.4201-4205
Main Authors: Yang, Mei, Guo, Zhixing, Qiu, Kehui, Long, Jianping, Yin, Guangfu, Guan, Denggao, Liu, Sutian, Zhou, Shijie
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Mn-doped
Photoluminescence
Physics
ZnO column arrays
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Summary:Mn-doped ZnO column arrays were successfully synthesized by conventional sol–gel process. Effect of Mn/Zn atomic ratio and reaction time were investigated, and the morphology, tropism and optical properties of Mn-doped ZnO column arrays were characterized by SEM, XRD and photoluminescence (PL) spectroscopy. The result shows that a Mn/Zn atomic ratio of 0.1 and growth time of 12 h are the optimal condition for the preparation of densely distributed ZnO column arrays. XRD analysis shows that Mn-doped ZnO column arrays are highly c-axis oriented. As for Mn-doped ZnO column arrays, obvious increase of photoluminescence intensity is observed at the wavelength of ∼395 nm and ∼413 nm, compared to pure ZnO column arrays.
ISSN:0169-4332
1873-5584
DOI:10.1016/j.apsusc.2010.01.125