Synthesis of novel perovskite materials NaNbO<sub>3</sub> doped with sulfur

Adnan Ali; Brahim Aissa; Fadwa El Melluohi

Synthesis of novel perovskite materials NaNbO₃ doped with sulfur

8^th International Conference on Smart Materials and Structures
August 01-02, 2019 Dublin, Ireland

Adnan Ali, Brahim Aissa and Fadwa El Melluohi

Qatar Environment & Energy Research Institute-Hamad Bin Khalifa University, Qatar

Posters & Accepted Abstracts: Nano Res Appl

Abstract

The study herein reports the synthesis of NaNbO3 powders doped with sulfur. Sulfur doped NaNbO3 was synthesized by mixing precursors NbCl2, Na2S2O3 and sulfur in PTFE chamber of stainless steel hydrothermal unit and heated at 200°C for 20h. Powdered obtained after centrifugation was calcinated was at 400°C for 2h in N2 controlled environment in a tube furnace. The morpho-structural and optical properties of the obtained materials were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM)/electron probe microanalysis (EPMA) and ultraviolet-visible (UVVis) spectroscopy. Electron probe microanalysis has confirmed 12.6% (atomic) of sulfur doping into NaNbO3. Compared to pristine NaNbO3; energy band gap widening and XRD peaks shifting and broadening have observed for sulfur doped NaNbO3 powders. This energy band gap widening is vital and could be a novel Pb-free candidate for Perovskite Solar Cells and other applications. This study opens the doors for further investigations of sulfur doping into NaNbO3 perovskite structure to optimize the doping concentration which results in optimum optoelectrical properties and open a broad spectrum of applications for this novel material.