研究目的
Investigating the influence of Al doping on the optical properties and bandgap of SmFeO3 for potential applications in optics.
研究成果
The optical bandgap of SmFe1?xAlxO3 can be tuned by altering the Al doping concentration (x), making the system potentially useful in optical applications, especially for light sources.
研究不足
The study was limited to Al content (x) up to 0.15 due to the appearance of a secondary phase (Al2O3). The interpretation of DRS spectra can be challenging due to large bandwidths and specular re?ectance.
1：Experimental Design and Method Selection:
The study utilized diffuse re?ectance spectroscopy (DRS) to monitor the optical properties of Al-doped SmFeO
2：X-ray diffraction (XRD) was used to confirm the perovskite structure. Sample Selection and Data Sources:
Samples of SmFe1?xAlxO3 with x varying from 0 to
3：15 were prepared using double sintering ceramic technology. List of Experimental Equipment and Materials:
A Varian 5E spectrometer with a BaSO4-coated integration sphere was used for DRS measurements.
4：Experimental Procedures and Operational Workflow:
The preparation involved mixing stoichiometric ratios of Sm2O3, Al2O3, and Fe2O3, followed by grinding, pre-sintering, regrinding, final sintering, and pressing into pellets.
5：Data Analysis Methods:
The bandgap energies were evaluated from optical re?ectance spectra using the Kubelka–Munk equation.
独家科研数据包，助您复现前沿成果，加速创新突破
获取完整内容
