నైరూప్య

Structural and Optical Properties of Zinc Titanate Electrospun one Dimensional Nanostructures

Achraf Hamrouni, Abdelaziz Drici, Philippe Miele, Raouia Hamrouni and Abdelaziz Amara

This paper reports the synthesis and the characterization of 1D Zinc titanate nanobelts of different molar ratios Zn/Ti = 0.26-0.40-0.80 (Zn(CH3COO)2/TTIP) prepared by electrospinning. The samples were annealed at 600°C and 900°C temperatures in air for 5 hr. The as-spun and annealed (Zn(CH3COO)2/ TTIP)/PVP composite nanobelts were characterized by scanning electron microscopy (SEM), Energydispersive X-ray spectroscopy analysis (EDX), X-ray diffraction (XRD), Raman spectroscopy and photoluminescence (PL). The results in this paper demonstrate that heat treatment has an influence on the process of crystallization. According to the X-ray diffraction, the formation of ZnTiO3 rhombohedral phase. Raman spectroscopy results confirm the formation of ZnTiO3 phase. They are in good agreement with the X-ray diffraction. Photoluminescence reveals that high quantity of Titanium makes shift from emitted bands to greater wavelengths (visible region). However, high temperature causes a shift from emission bands to greater wavelengths and regeneration of other bands.