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Microstructures and Optical Properties of Nanocrystalline Pr- doped BaTiO3 Thin Film |
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PP: 307-311 |
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doi:10.18576/ijtfst/110307
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Author(s) |
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Y. Iriani,
A. Suparmi,
A. Marzuki,
D. K. Sandi,
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Abstract |
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| This study aimed to synthesize Praseodymium (Pr) doped Barium Titanate (BT) or Ba1-xPrxTiO3 thin film and investigate the influence of Pr doping concentration on their microstructure and optical properties. The thin films with different Ba/Pr ratios (x=0, 0.03, 0.05, and 0.15) were fabricated on the quartz substrates using the sol-gel method with a spin coater. The microstructure and optical properties were observed by X-Ray Diffractometer (XRD) and UV-Vis Spectrophotometer, respectively. The microstructure results revealed that the lattice parameter, unit cell volume, and crystallite size of the Pr doped thin films decreased by the addition of Pr dopant. Meanwhile, the lattice strain and tetragonality were modified due to Pr doping. The optical measurement showed that the transmittance value advanced by giving Pr dopant, which caused the Pr-doped BT thin film to have higher refractive indices than the BT, thus making the Pr- doped samples possible to be anti-reflection coating. However, the bandgap is influenced by the thickness so that BT with the highest thickness possesses the highest bandgap, followed by Pr doping of 15%, 3%, and 5%. |
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