Understanding the mechanism of the energy transfer process from non-plasmonic fluorescence bimetallic nanoparticles to plasmonic gold nanoparticles

Abstract

Understanding the fundamentals behind the photophysical response of a fluorescing species in the vicinity of plasmonic nanoparticle is of great interest due to the importance of this event in various...

In Situ Crystallization, Differential Growth, and Multicolor Emission of Silver Nanoclusters

“…As stated earlier, the AgNPs exhibit a strong SPR band at 445 nm that significantly overlaps with the emission maximum of Ag 9 NCs centered at 500 nm (Figure S21c). This considerable spectral overlap unveils the possibilities of AgNPs-induced PL quenching, which involves various nonradiative energy transfer processes, such as surface energy transfer (SET), photoinduced electron transfer, etc. , The effect of dissolved oxygen on the disruption of AgNPs was investigated by purging argon gas in the yellow transparent solution of AgNPs. The obtained results demonstrate that the dissolved oxygen does not have any significant impact on the photoinduced disruption of AgNPs (Figure S22, the photoinduced disruption of AgNPs was estimated to be ∼99% and ∼91% in air and argon, respectively).…”