Individual Control of H+ and Cl- ions in Seed-Mediated Growth of Silver Nanocubes
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Silver nanocrystals are used in chemical applications such as localized surface plasmon resonance (LSPR), Surface Enhanced Raman Scattering (SERS), metamaterials, and catalysts. The plasmon resonance phenomenon on the surface of nanoscale silver particles responds sensitively to external stimuli, generating strong optical signals. Silver particles exhibit various surface plasmon resonance frequencies depending on their size and shape, so the controlled shape and size of nanocrystals and consistent size monodispersity determine performance in applications. Silver nanocubes are known to generate additional plasmon modes due to their sharp edges and corners. This phenomenon is crucial in optics, making it important to maintain the sharpness of the cube particles during growth. In this study, we use the seed-mediated growth method to grow nanocubes from the nanometer to the micrometer scale, adjusting the concentrations of H+ and Cl- to investigate their effects on cube particle growth.