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Plasmonic enhancement is an attractive method for improving the efficiency of dye-sensitized solar cells (DSSCs). Plasmonic materials with sharp features, such as triangular metal nanoparticles, show stronger plasmonic effects than their spherical analogues; however, these nanoparticles are also often thermally unstable. In this work, we investigated the thermal stability of Au@SiO2 triangular nanoprisms by annealing at different temperatures. Longchamps Prezzi Morphological changes were observed at temperatures greater than Longchamp Borse Outlet 250 C, which resulted in a blue shift of the localized surface plasmon resonance (LSPR). Annealing at 450 C led to a further blue shift; however, this resulted in better overlap of the LSPR with the absorption spectrum of Black Dye. By introducing 0.05% (w/w) Au@SiO2 nanoprisms into DSSCs, we were able to achieve a panchromatic enhancement of the light harvesting efficiency. This led to a 15% increase in the power conversion efficiency, from 3.9 0.6% to 4.4 0.4%.



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