Structural, optical and magnetic properties of Zn1-xMnxO micro-rod arrays synthesized by spray pyrolysis method

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Article

Yilmaz, S.^1,2,3  Bacaksiz, E.¹  McGlynn, E.^2,3  Polat, I.¹  Ozcan, S.⁴ 

[1] Karadeniz Tech Univ, Dept Phys, Fac Sci, TR-61080 Trabzon, Turkey

[2] Dublin City Univ, Sch Phys Sci, Dublin 9, Ireland

[3] Dublin City Univ, Natl Ctr Plasma Sci & Technol, Dublin 9, Ireland

[4] Hacettepe Univ, Dept Engn Phys, SNTG Lab, TR-06800 Ankara, Turkey

关键词: Doped zinc oxide;    Manganese;    Microrods;    Photoluminescence;    Ferromagnetism;    Spray pyrolysis;   

DOI  :  10.1016/j.tsf.2012.04.002

来源: Elsevier

【 摘 要 】

Undoped and Mn-doped ZnO micro-rod arrays were fabricated by the spray pyrolysis method on glass substrates. X-ray diffraction and scanning electron microscopy showed that these micro-rod arrays had a polycrystalline wurtzite structure and high c-axis preferred orientation. Photoluminescence studies at 10K show that the increase of manganese content leads to a relative decrease in deep level band intensity with respect to undoped ZnO. Magnetic measurements indicated that undoped ZnO was diamagnetic in nature whereas Mn-doped ZnO samples exhibited ferromagnetic behavior at room temperature, which is possibly related to the substitution of Mn ions (Mn2+) for Zn ions in the ZnO lattice. Crown Copyright (C) 2012 Published by Elsevier B.V. All rights reserved.

【 授权许可】

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