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In this study, the plasmonic extinction spectra and local field distributions of three different gold nanoframe models with multi-breakages are simulated based on the discrete dipole approximation (DDA) method. By tuning the length of one breakage, there are two clearly separated surface plasmon resonance (SPR) peaks which show a clear blue shift as the broken length increases, and the local field...
In this work, a combined seed mediated and galvanic replacement strategy has been proposed to design and fabricate two unique nanostructures, including Au@AuAg yolk-shell nanostructures with tunable interior gap and Au multi-spiky nanostructures with tunable spike length. The interior gap of the Au@AuAg yolk-shell nanostructures can be controlled by varying either the amount of AgNO3 in the first...
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