Role of composition and size-dependent damping due to electron-surface scattering on plasmonic properties of gold-silver alloy nanoparticles: A theoretical study

Role of Size-Dependent Damping Due to Electron–Surface Scattering on the Al Nanoparticle-Based Deep Ultraviolet Surface-Enhanced Fluorescence

“…It is important to note that for estimating the LEFE and 𝛾 𝑆𝐸𝐹 of the nanoparticles, one should know the wavelengths of the plasmon modes. One can easily obtain these wavelengths either from absorption or scattering spectra of single nanoparticles [35][36][37]. Since, the lower and higher order modes are relatively prominent in absorption spectra rather than the scattering spectra [38], in the present study, we have plotted the absorption spectra (absorption efficiency versus wavelength plots) of single Al nanoparticles of different sizes using the analytical expression given in Ref.…”

“…It is crucial to note that in small nanoparticles, the plasmon damping due to the electron-surface scattering is predominant [40][41][42]. Therefore, the 𝜀(𝜔) becomes size-dependent.…”

Near and far field plasmonic properties of metallic alloy nanoparticles: effect of composition and size-dependent plasmon damping

“…It is to be noted that the scattering efficiency strongly depends upon the dielectric function of the Au-Ag alloy. It is to be noted that the dielectric function of the Au-Ag alloy modifies significantly in the case of small alloy nanospheres and thin alloy nanos hells due to the predominant size-dependent damping (SDD) due to the electron-surface scattering [12,13]. The dielectric functions of the Au-Ag alloy nanoparticle in the presence and absence of the SDD are taken from Ref.…”

Role of size-dependent damping due to electron-surface scattering on the Al nanoparticle-based deep ultraviolet surface enhanced fluorescence

“…It is important to note that for estimating the LEFE and 𝛾 𝑆𝐸𝐹 of the nanoparticles, one should know the wavelengths of the plasmon modes. One can easily obtain these wavelengths either from absorption or scattering spectra of single nanoparticles [35][36][37]. Since, the lower and higher order modes are relatively prominent in absorption spectra rather than the scattering spectra [38], in the present study, we have plotted the absorption spectra (absorption efficiency versus wavelength plots) of single Al nanoparticles of different sizes using the analytical expression given in Ref.…”

“…It is crucial to note that in small nanoparticles, the plasmon damping due to the electron-surface scattering is predominant [40][41][42]. Therefore, the 𝜀(𝜔) becomes size-dependent.…”