Publications

J. Phys. Chem. C 2020 (ASAP)

The strong interaction between plasmonic metal nanoparticles and photosensitizers can significantly amplify their singlet oxygen (1O2) production. However, improving the performance of these hybrid plasmonic nanostructures is hampered by the lack of understanding of how their plasmonic properties impact the enhancement of 1O2 production. Here, we report that a Au core-based nanoparticle can outperform a Ag one. This result is striking as Ag is referred to as a better plasmonic metal than Au and forms the basis of our investigation. We use a novel approach based on a mini meta-analysis to elucidate and quantify the near- and far-field contributions to the plasmon-enhanced 1O2 production by using a highly tunable model hybrid photosensitizer–metal core@shellnanoparticle. The correlation between time-resolved 1O2 measurements and the experimental and simulated plasmonic optical properties was achieved by comparing the results of four new nanoparticles of differ...

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