Light Generation from PbI2 Nanoparticles Illuminated by a UV Source
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Abstract
This study investigates the photoluminescence properties of lead iodide (PbI₂) nanoparticles embedded in a polyvinyl alcohol (PVA) matrix when illuminated by ultraviolet (UV) light. The PbI₂ nanoparticles, dispersed uniformly within the PVA polymer matrix, exhibit enhanced stability and efficient light emission due to the protective environment provided by PVA. Upon UV illumination, the PbI₂ nanoparticles generate visible light, with emission characteristics influenced by the nanoparticle size, concentration, and interaction with the PVA matrix. The role of PVA as a stabilizing agent and its effect on the photophysical properties of PbI₂ are analyzed, showing an improvement in quantum efficiency and photostability. This hybrid nanocomposite system demonstrates potential applications in UV-responsive optoelectronic devices, flexible light-emitting materials, and photonic sensors. The study offers ideas about the integration of semiconductor nanoparticles with polymer matrices for advanced light-generation technologies. This study explores the interaction between UV light and PbI₂ nanoparticles, focusing on the photophysical processes that lead to light generation.
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© 2023 The Author(s). Published by the College of Science, University of Baghdad. This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License.
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