研究目的
To improve the vacancy related defects associated with pure BiFeO3 (BFO) through Ba-Mn co-doping and study its influence on structural, magnetic and optical properties.
研究成果
Ba-Mn co-doped BiFeO3 nanoparticles were successfully synthesized, showing improved magnetic and optical properties. The grain size decreased with doping concentration, and the band gap was minimized for Bi0.9Ba0.1Fe0.9Mn0.10O3, indicating enhanced optical properties.
研究不足
The study is limited to the effects of Ba-Mn co-doping on BiFeO3's structural, magnetic, and optical properties. Potential areas for optimization include further reducing particle size and enhancing ferromagnetic properties.
1：Experimental Design and Method Selection:
Modified sol-gel method was used to prepare co-doped Bi1-xBaxFe1-yMnyO3 samples.
2：Sample Selection and Data Sources:
Samples with x=0.1; y=
3：1; y=0, 05, 1, 15 were prepared. List of Experimental Equipment and Materials:
0.0, 0.05, 0.1, 0.15 were prepared. 3. List of Experimental Equipment and Materials: Bi(NO3)
4：5H2O, Fe2(NO3)9H2O, Ba(NO3)6H2O, Mn(NO3)4H2O, citric acid, ethylene glycol. Experimental Procedures and Operational Workflow:
Dissolution of materials in deionized water, addition of citric acid and ethylene glycol, formation of dried gel, ignition, calcination, and annealing.
5：Data Analysis Methods:
SEM for particle size, VSM for magnetic properties, UV analysis for band gap calculation.
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