Thermal sensing characteristics of Nd0.06Bi0.94FeO₃ NPs for thermistor applications
Source abstract
Abstract
Highly sensitive negative temperature coefficient (NTC) thermistors were developed using innovative and stable materials, including perovskites. This study explored the application of bismuth ferrite nanoparticles doped with 6 % neodymium in thermistors. These nanoparticles were synthesized using the Sol-gel method. X-ray diffraction analysis suggests that the Nd0.06Bi0.94FeO₃ NPs materials have a rhombohedral structure with an R3c space group. The crystallite sizes were determined using Scherrer's equation, yielding values of approximately 52 nm. Furthermore, the morphological characterization was performed through SEM and TEM analysis, revealing the formation of well-defined grain nanoparticles with an average size of 195 nm. Semi-quantitative energy-dispersive spectroscopy (EDS) analysis confirmed the presence of the anticipated elements Bi, Fe, Nd, and O, while no secondary elements were detected. The Raman analysis confirmed the structural stability of the Nd-modified BiFeO₃ nanoparticles. By studying the dielectric properties, the prepared material showed a negative temperature coefficient of resistance (NTCR) across various temperatures. Calculations of the thermistor constant (β) and sensitivity factor (α) confirmed its suitability as an NTC thermistor.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electrical and Thermal Properties of Materials · Ferroelectric and Piezoelectric Materials · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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