The majority of the current composite core-shell structure preparation and sintering processes applied to silver nanowire transparent electrodes are impractical for large-scale industrial production and primarily emphasize macroscopic performance parameters, with limited insights into the underlying sintering mechanism. This study presents a simple synthesis of AgNWs@PVP core-shell structures and investigates the effects of sintering temperature and time on their morphology. The morphology of AgNWs@PVP core-shell structures during sintering was systematically analyzed using characterization techniques, such as transmission electron microscopy and scanning electron microscopy.
View Article and Find Full Text PDFThe growing use of high-power and integrated electronic devices has created a need for thermal conductive adhesives (TCAs) with high thermal conductivity (TC) to manage heat dissipation at the interface. However, TCAs are often limited by contact thermal resistance at the interface between materials. In this study, we synthesized MXene@Ag composites through a direct reduction process.
View Article and Find Full Text PDFEnvironmental protection mandates have spurred the widespread adoption of lead-free glass in electronic material adhesion. Glass powder, crucial for solar silver paste, notably affects the ohmic contact at the Ag-Si interface of crystalline silicon solar cells. This study examines how TeO content influences the high-temperature flowability and wettability of lead-free BiO-TeO-based glass powder, alongside the interplay between the glass's thermal properties and interface contact.
View Article and Find Full Text PDFMaterials (Basel)
January 2024
Silver powder, as the primary component of solar silver paste, significantly influences various aspects of the paste's performance, including printing, sintering, and conductivity. This study reveals that, beyond the shape and size of the silver powders, their microstructure is a critical factor influencing the performance of both silver powders and silver pastes in solar cell applications. The growth process leads to the formation of either polycrystalline aggregated silver powder or crystal growth silver powder.
View Article and Find Full Text PDFMicromachines (Basel)
August 2023
Low-temperature lead-free silver pastes deserve thorough investigation for sustainable development and application of MgTiO ceramics in electronic devices. In this study, a series of BiO-BO-ZnO-SiO-AlO-CaO glasses with suitable softening temperatures were prepared via melt quenching using a type of micrometer silver powder formed by silver nanoparticle aggregates. The composite pastes containing silver powder, BiO glass powder and an organic vehicle were then screen-printed.
View Article and Find Full Text PDFOptimizing the performance of front silver paste is of great significance in improving the efficiency of the photoelectric conversion of crystalline silicon solar cells. As a conductive functional phase of silver paste, the structure and performance of silver powder have an important influence on the sintering process of silver paste and the conductivity of silver electrodes. Because of their two-dimensional structure, flake silver powders can effectively increase the contact area with other silver powders and silicon cells before sintering.
View Article and Find Full Text PDFHeat dissipation is a critical issue in high-performance electronics, which needs to be solved, and an electronic paste is a good choice to solve this issue. In this paper, silver nanoparticles/multi-walled carbon nanotube (Ag-NPs/MWCNT) composites were prepared by the chemical process for the modification of electronic pastes. The micromorphology and spectral analysis of the as-prepared Ag-NPs/MWCNT composites indicated that Ag-NPs were uniformly distributed on the MWCNT surfaces with high distribution densities; the average size of Ag-NPs was estimated to be 8.
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