Abstract
The approach emphasizes dispersing Ag@CdS (ACS) core@shell (CS) nanocrystals (NCs) in polyvinyl alcohol (PVA) and activating them at room temperature via a straightforward wet chemical co-precipitation process. The improved performance of ACS NCs is due to their CS shape, surface plasmon resonance (SPR), and quantum confinement phenomena. The UV-Vis and PL spectroscopy revealed variations in optical properties, including a tunable band gap in CdS quantum dots, indicating their potential as nanoelectronic (NE) devices. The XRD, TEM, and SEM measurements validated the nanoscale development of ACS NCs on the PVA surface. Findings NCs have excellent dielectric characteristics in capacitors, which improves energy storage efficiency as capacitance falls with frequency due to increased polarization. The assemblies outperform those with simply core or shell NCs, with ACS CS NCs producing a peak dielectric constant of 106, capacitance of 200 nF, conductivity of 0.1, and a voltage gain of 91% at specific frequencies. The incorporation of ACS NCs into PVA has major implications for future NE applications, including low-pass frequency filters, energy conversion, energy storage, memristive devices, and sensors. This study enhances energy-efficient technologies by embedding ACS in a stable PVA matrix, improving nanocrystals' functionality and stability for NEs devices.
Published Version
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