We report the synthesis of α-Fe1.4Ga0.6O3 compound and present its structural phase stability and interesting magnetic, dielectric and photo-absorption properties. In our work Ga doped α-Fe2O3 samples are well stabilized in α phase (rhombohedral crystal structure with space group R3C). Properties of the present composition of Ga doped α-Fe2O3 system are remarkably advanced in comparison with recently most studied FeGaO3 composition. At room temperature the samples are typical soft ferromagnet, as well as direct band gap semiconductor. Dielectric study showed low dielectric loss in the samples with large enhancement of ac conductivity at higher frequencies. Optical absorption in the visible range has been enhanced by 4 to 5%. This composition has exhibited large scope of tailoring room temperature ferromagnetic moment and optical band gap by varying grain size and non-ambient (vacuum) heat treatment of the as prepared samples by mechanical alloying.
Summary
In the recent decade, lithium‐ion batteries have flourished in the mobile market to a greater extent. Despite its versatile commercial applications in various fields, it faces critical issues that restrict by safety concerns including leakage, combusting, or even explosions because of the low boiling point of liquid organic electrolytes. In order to mitigate these difficulties, solid electrolytes can be a potential choice. Polymer‐based solid Li‐ion batteries have been attracting researchers for accomplishing high performance. However, poor mechanical strength and low transport of Li+ ions inside the cell remain prominent challenges for its commercialization. To solve these issues and enhance the overall performance, polymer‐based nanocomposite electrolytes developed by incorporating the nanofillers into the polymer matrix have been investigated to a greater extent. This review briefly elaborates on the recent progress of polymer nanocomposite electrolytes for lithium‐ion batteries, factors affecting its performance, and various models used in the interpretation of its performance.
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