Hydrothermal synthesis and optical properties of Zn1−xMnxS nanorods--颗粒学报PARTICUOLOGY

Huang, Y., Cai, Y., & Liu, H. (2011). Hydrothermal synthesis and optical properties of Zn1−xMnxS nanorods. Particuology, 9(5), 533–536. https://doi.org/10.1016/j.partic.2010.12.003

Hydrothermal synthesis and optical properties of Zn_1−xMn_xS nanorods

Yangfeng Huang^*, Yebin Cai, Hao Liu

School of Mechanical & Electrical Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China

10.1016/j.partic.2010.12.003

Volume 9, Issue 5, October 2011, Pages 533-536

Received 27 September 2010, Revised 13 December 2010, Accepted 21 December 2010, Available online 18 August 2011.

E-mail: yf9798@sohu.com

Highlights

Abstract

Zn_1−xMn_xS (x = 0–0.05) nanorods were successfully synthesized through a hydrothermal route. The morphology, composition and microstructure of Zn_1−xMn_xS nanorods were characterized respectively by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Raman spectrometer. The optical properties of Zn_1−xMn_xS nanorods were determineded by UV–Vis absorption spectroscopy and photoluminescence (PL) emission spectroscopy. The results show that the introduction of Mn²⁺ on interstitial sites in ZnS lattice has significant influence on the Raman spectra, UV–Vis absorption spectra and PL emission spectra. With the increase of Mn²⁺, the lengths of the sampled nanorods become shorter and the morphologies of the products show disorder accompanied by some nanoparticles. The absorption band edge shifts to longer wavelength. The intensity of the ZnS-related emission gradually becomes weaker, whereas, the Mn²⁺-related broad emission spectra located at 580 nm gradually red-shifts and increases. Occupation of Zn²⁺ sites in the lattice by Mn²⁺ ions results in lattice distortion and influences the energy level structure of ZnS. The Mn doping is found responsible for the changes in the defect-related emission of the ZnS nanorods.

Graphical abstract

Keywords

Inorganic compound; Chemical synthesis; Nanostructures; Optical properties

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