研究目的
Investigating the multifunctional behavior of Ca-doped niobium-based double perovskite for applications in photovoltaic/solar cell devices, energy storage devices, and thermal sensor devices.
研究成果
The multifunctional polycrystalline revived double perovskite niobate has potential applications in photovoltaic/solar cell devices, energy storage devices, and thermal sensor devices due to its optical, ferroelectric, and semiconducting properties.
研究不足
The study is limited by the experimental techniques and equipment used, which may not capture all aspects of the material's properties. The phase transition in the dielectric study was absent due to a lack of an experimental limitation temperature.
1：Experimental Design and Method Selection:
The polycrystalline sample of PCBN was prepared through the conventional solid-state route using high-grade chemical components. The structure, phase identification, and purity of the sample were examined by XRD, FTIR, and EDS analyses. Optical study was carried out by UV–Vis and PL spectra analyses.
2：Sample Selection and Data Sources:
High-grade (
3：9%) chemical components, CaCO3, PbO, Nb2O5 and Bi2O3 were used. List of Experimental Equipment and Materials:
PAN-Analytical diffractometer, Hitachi scanning electron microscope (SEM), SIMADZU 2600 FTIR and NIR RAMAN instruments, Twobeam UV–Vis spectrometer and Perkins Analyzer, hydraulic press, LCR meter (HIOKI, Model: 1735, Japan).
4：Experimental Procedures and Operational Workflow:
The raw chemicals were mixed thoroughly by dry as well as wet methanol, calcined, and then sintered. The powder form of the calcined sample was made into cylindrical pellets for further analysis.
5：Data Analysis Methods:
The data were analyzed using POWD software for XRD, and the electrical properties were studied using impedance spectroscopy technique.
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Hitachi scanning electron microscope
SEM
Hitachi
Used for surface morphology and purity of the sample.
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SIMADZU 2600 FTIR
2600
SIMADZU
Used for better understanding of the structure and phase identification.
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PAN-Analytical diffractometer
PAN-Analytical
Used for room-temperature XRD (X-ray diffraction) to check the compound formation.
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NIR RAMAN
Used for better understanding of the structure and phase identification.
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Twobeam UV–Vis spectrometer
Used for optical study.
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Perkins Analyzer
Perkins
Used for optical study.
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Hydraulic press
Used to make cylindrical pellets of the calcined sample.
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LCR meter
1735
HIOKI
Used to study the electrical characteristics of the sample.
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