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Smart Materials Congress 2019
Nano Research and Applications
ISSN: 2471-9838
Page 38
August 01-02, 2019
Dublin, Ireland
Smart Materials and
Structures
8
th
International Conference on
Nano Res Appl 2019, Volume 05
Synthesis of novel perovskite materials NaNbO
3
doped with
sulfur
Adnan Ali, Brahim Aissa
and
Fadwa El Melluohi
Qatar Environment & Energy Research Institute-Hamad Bin Khalifa University, Qatar
T
he study herein reports the synthesis of NaNbO
3
powders doped with sulfur. Sulfur doped NaNbO
3
was
synthesized by mixing precursors NbCl
2
, Na
2
S
2
O
3
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 N
2
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 (UV-
Vis) spectroscopy. Electron probe microanalysis has
confirmed 12.6% (atomic) of sulfur doping into NaNbO
3
.
Compared to pristine NaNbO
3
; energy band gap widening
and XRD peaks shifting and broadening have observed
for sulfur doped NaNbO
3
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 NaNbO
3
perovskite structure to optimize the
doping concentration which results in optimum opto-
electrical properties and open a broad spectrum of
applications for this novel material.
adali@hbku.edu.qa