Speaker
Description
ABSTRACT
The purpose of this project was to investigate the mechanoluminescence properties of Mn²⁺ doped CaZnOS phosphors and analyze their potential applications in stress sensing and radiation dosimetry. Mechanoluminescence (ML) is a phenomenon where materials emit light under mechanical stress, making them valuable for impact detection and structural monitoring.
In this study, Mn²⁺ doped CaZnOS phosphors were synthesized using the solid-state reaction method and subjected to structural, morphological, and optical characterization. X-ray diffraction (XRD) confirmed phase formation, while scanning electron microscopy (SEM) provided insights into surface morphology and particle distribution. UV-visible spectroscopy was employed to analyze optical properties and bandgap variations. The ML response was systematically examined under controlled mechanical stress to evaluate luminescence efficiency and emission behavior.
The results indicated that Mn²⁺ doping significantly enhances the ML intensity by modifying the trap depth and charge recombination mechanisms. A direct correlation was observed between applied mechanical force and emitted light intensity, demonstrating the material’s potential for self-powered sensing applications. These findings highlight the suitability of Mn²⁺ doped CaZnOS phosphors for stress sensing, impact detection, and radiation dosimetry. The study contributes to the development of advanced luminescent materials, offering new possibilities for real-world sensor applications and further advancements in mechanoluminescence-based technologies.
| Abstract Category | Materials Physics |
|---|