Structural and Electrical Properties of La3+‐Doped Scheelite‐Type Calcium Molybdates: Effect of Doping Concentration
Year: 2025
Type: article
Abstract: This study investigates how La3+ doping affects the structural, optical, and electrical properties of calcium molybdate nanomaterials synthesized using the method of solution combustion. The results of X‐ray diffraction validate the tetragonal structure having space group I41/a. Field emission scanning electron microscopy provides detailed insights into the microstructure, and energy dispersive X‐Ray analysis (EDX) analysis confirms the desired compositional distribution. UV–visible spectroscopy reveals a notable decrease in the energy band gap with the increased concentration of La, indicating potential applications in optoelectronic devices. Impedance spectroscopy demonstrates that the charge carriers exhibit non‐Debye type relaxation, affirming the negative temperature coefficient of resistance (NTCR) behavior. Furthermore, the electrical data analysis exhibits that the thermally activated direct current (DC) conductivity follows the Arrhenius equation.
Source: physica status solidi (a)
Authors: Gunjan Das, Abhigyan Dutta
Institution: University of Burdwan
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
Funder: University of Burdwan
Award: G59190567
OpenAlex ID: W4410907944