How to calculate the absorption cross section of Au nanoparticles from UV-Vis absorption spectra?

09 April 2024 1 9K Report

Greetings everyone,

I have recently started working on plasmons. I am trying to find out the absorption cross-section of 8 nm diameter Au nanoparticles, in order to explain the plasmon-induced mechanisms. But I could not find out the appropriate literature related to it (in our case LSPR mode is present around 490 nm in absorption spectra) . Is it possible to find it out from absorption spectra without performing further experiments related to the same?

Ar Indhu

Dear Akansha,

You can use both the quasi-static approximation and Mie theory depend on the radii of the nanospheres. You can also refer one of our article (Article Plasmonic nanotechnology for photothermal applications – an evaluation

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