Effect of Mn doping on microstructural and optical behavior of Zn(1−x)MnxO nanorod by simple auto-combustion method. (May 2015)

• Record Type: Journal Article
• Authors: Maharana, H.S.; Yadav, S.; Chakraverty, A.P.; Verma, G.D.
• Is Part Of: Superlattices and microstructures. Volume 81(2015)
• Page Start: 142
• Page End: 150
• Publication Date: 2015-05
• Subjects: Dilute magnetic semiconductor -- Auto-combustion -- ZnO -- Nanorod; Superlattices as materials -- Periodicals; Microstructure -- Periodicals; Semiconductors -- Periodicals; Superréseaux -- Périodiques; Microstructure (Physique) -- Périodiques; Semiconducteurs -- Périodiques; 621.38152
• DOI: 10.1016/j.spmi.2015.01.025
• Languages: English
• ISSNs: 0749-6036

Abstract

Highlights: Mn doped ZnO nanorod was successfully prepared by simple auto-combustion method. Structural and morphological properties of prepared nanorod are significantly influenced by Mn doping. Optical results suggest good quality optical properties. Abstract: Mn doped ZnO nanorods with different doping concentrations (0, 0.02, 0.05, 0.1, 0.15, and 0.2) were synthesized by simple auto-combustion method. The structural, morphological and optical behaviors of Zn(1 − x ) Mn x O were investigated by X-ray diffraction (XRD), field-emission microscopy (FE-SEM) and diffuse reflectance spectroscopy (DRS). The structural properties of un-doped and Mn doped ZnO nanorods exhibit hexagonal wurtzite structure with no secondary phase. From scanning electron micrographs results it can be evidenced that, both crystallite size and surface morphology are significantly affected by Mn doping concentrations. From the optical studies, the reflectance in UV region of doped samples was decreased in comparison to undoped one and the optical band gap varies between 3.33 and 2.81 eV. Photoluminescence spectra shows large emission band originated at 388 nm and a weak band centered on 495 nm. The present study reveals about the influence of Mn 2+ ions on morphological and optical properties of Zn(1 − x ) Mn x O.