Synthesis and characterization of Mn-doped ZnO column arrays

• Published in: Applied surface science Vol. 256; no. 13; pp. 4201 - 4205
• Main Authors: Yang, Mei, Guo, Zhixing, Qiu, Kehui, Long, Jianping, Yin, Guangfu, Guan, Denggao, Liu, Sutian, Zhou, Shijie
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.04.2010; Elsevier
• 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; Photoluminescence; Mn-doped; ZnO column arrays; Inorganic compounds; Transition element compounds; Doped materials; Zinc oxide; Arrays
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2010.01.125

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.