Correlated Absorption and Scattering Spectroscopy of Individual Platinum-Decorated Gold Nanorods Reveals Strong Excitation Enhancement in the Nonplasmonic Metal

摘要: Bimetallic nanocatalysts have the potential to surmount current limitations in industrial catalysis if their electronic and optical properties can be effectively controlled. However, improving performance of bimetallic photocatalysts requires a functional understanding how intricacies morphology composition dictate every element response. In this work, we examine Au Pt-decorated nanorods on single-particle level ascertain Pt influences plasmon resonance nanostructure. We correlated scattering, photoluminescence, pure absorption individual nanostructures separately expose impact each component. found that scattering spectra uncoated followed expected trends peak intensity shape were accurately reproduced by finite difference time domain simulations. contrast, single exhibited red-shifted, br...