Structural and optical properties of zinc oxide doped by V2O5 synthesized by solid-state reaction. (March 2016)

• Record Type: Journal Article
• Authors: Abaira, R.; Dammak, T.; Matoussi, A.; Younes, A.
• Is Part Of: Superlattices and microstructures. Volume 91(2016)
• Page Start: 365
• Page End: 374
• Publication Date: 2016-03
• Subjects: Semiconductors -- Solid state reaction -- Optical properties -- X-ray diffraction -- UV–Visible spectrum -- Photoluminescence; Superlattices as materials -- Periodicals; Microstructure -- Periodicals; Semiconductors -- Periodicals; Superréseaux -- Périodiques; Microstructure (Physique) -- Périodiques; Semiconducteurs -- Périodiques; 621.38152
• DOI: 10.1016/j.spmi.2016.01.008
• Languages: English
• ISSNs: 0749-6036

Abstract

Abstract: Vanadium doped zinc oxide with different vanadium concentration were synthesized by conventional solid state reaction. The structural and optical properties of ZnO: V2 O5 pellets were studied by using a panalytic diffraktometer (X'pert) with Cu–K radiation, the UV–visible spectrophotometer and photoluminescence (PL). X-ray diffraction (XRD) show that all the samples have a wurtzite structure and grow mainly in the (101) orientation, we show also the presence of dominated phase Zn3 (VO4 )2, Optical studied indicate a decrease in optical band gap energy, and photoluminescence (PL) spectra showed a strong visible emission band, energy position and intensity of this emission depends on the temperature measurement. The activate energy Ea has been fitted and studied using Arunis equation. Highlights: V2 O5 doped zinc oxide nanocrystals are prepared by the solid-state method. The XRD results have proven that all this samples had a wurtzite structure. The grain size increases as the vanadium concentration increases. We show a decrease in optical band gap. PL measurement shows the appearance of the luminescence band located at the visible region of all samples.