Synthesis SrAl2O4:Eu2+,Dy3+ phosphor by using solution combustion method / Nik Nursyuhada Nik Roslan

Nik Roslan, Nik Nursyuhada (2020) Synthesis SrAl2O4:Eu2+,Dy3+ phosphor by using solution combustion method / Nik Nursyuhada Nik Roslan. [Student Project] (Unpublished)


Strontium aluminate doped with Eu2+ and Dy3+ were prepared by using solution combustion method. To synthesize SrAl2O4 : Eu2+, Dy3+ phosphor, Sr(N03)2 and AI(N03)3. 9HzO were used as starting material while EU2O3 and DY2O3 were used as activator. The fuel used for combustion process was urea (CH4N2O). The structural properties were measured by using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) spectroscopy. The structure of the SrAl2O4:Eu2+,Dy3+ was found to be monoclinic with space group P21, with crystallite size around 22.43 nm. Based on FTIR, the functional group including vibrational and bending modes exist in sample were identified. The optical properties of SrAl2O4:Eu2+,Dy3+ were studied by using photoluminescence (PL) and Ultraviolet-Visible (UV-Vis). SrAl2O4:Eu2+,Dy3+ emits green light when the peak is at 522 nm and confirmed with CIE. SrAl2O4:Eu2+,Dy3+ has around 5.3865 eV direct energy band gap based on UV-Vis analysis. This nanophosphor is very useful in industry since it has afterglow effect.


Item Type: Student Project
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Nik Roslan, Nik Nursyuhada
Subjects: Q Science > QC Physics > Optics. Light > Spectroscopy
Q Science > QC Physics > Radiation physics (General) > X-rays
Q Science > QC Physics > Radiation physics (General) > Diffraction
Divisions: Universiti Teknologi MARA, Pahang > Jengka Campus > Faculty of Applied Sciences
Programme: Bachelor of Science (Hons.) Physics
Keywords: Combustion, x-ray diffraction (XRD), fourier transform infrared (FTIR) spectroscopy
Date: 2020
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