Structural, morphological and optical properties of Mn doped ZnS nanocrystals

Cerâmica

V. D. Mote²  Y. Purushotham¹  B. N. Dole² 

[1] ,Dr. B. A. Marathwada University Department of Physics Advanced Materials Research LaboratoryAurangabad,India

关键词: ZnS;    nanocrystals;    particle size;    surface morphology;    optical properties;    ZnS;    nanocristais;    tamanho de partícula;    morfologia de superfície;    propriedades ópticas;   

DOI  :  10.1590/S0366-69132013000400019

来源: SciELO

【 摘 要 】

Mn doped ZnS samples with composition formula Zn1-xMn xS where x = 0, 0.02, 0.05 and 0.10 were prepared by chemical method. Samples characterized for its structural, morphological and optical properties by X-ray diffraction (XRD), transmission electron microscope (TEM), Fourier transform infrared spectroscopy (FTIR) and UV-vis spectrometry. XRD patterns confirm cubic zinc blend structure with no secondary phases for pure and Mn doped ZnS. Lattice constant value increases slightly with Mn concentration due to the substitution of Mn in ZnO lattice. TEM images show that the particles have spherical in shape with an average particle size 3-4 nm. The chemical species of the grown crystals are identified by FTIR spectra. Optical absorption spectra show decrement in band gap with increasing Mn concentration.

【 授权许可】

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