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Zinc sulfide fine particles obtained at low temperature

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: A. Dumbrava, C. Badea, G. Prodan, Ionela Popovici, V. Ciupina

Editorial: Chalcogenide Letters, 6(9), p.437-, 2009.

Rezumat:

The zinc sulfide was prepared using as precursors zinc complexes and thioacetamide, at room temperature. The size and morphology, crystal structure, and optical properties of the zinc sulfide were analyzed by X – ray Diffraction, Selected Area Electron Diffraction, Transmission Electron Microscopy, Fourier Transform Infrared Spectrometry, and UV – Visible Spectrophotometry. The results show that the zinc sulphide powders are constituted by crystalline aggregates, which are made by uniform nanoparticles. The X-ray Diffraction and Selected Area Electron Diffraction patterns confirm the presence of cubic structure (blende type). The IR spectra prove that the zinc sulfide has good transmittance within the wavelength number range from 400 to 4000 cm-1. The UV-Vis spectra show that the obtained zinc sulfide has strong absorption within the wavelength range from 250 to 300 nm.

Cuvinte cheie: Zinc sulfide, Thioacetamide, Transmission Electron Microscopy