Анотація:
Au/SiO₂ core-shell nanoparticles have been used to increase the photocurrent
in the surface barrier structure Au/GaAs. The method for theoretical calculation of
interaction between light and the system of ordered nanoparticles placed on the surface
barrier structures has been proposed. Local plasmons excited in the nanoparticles
produce additional carriers due to scattering, prolonged interaction with semiconductor
and enhanced evanescent electromagnetic field, thus they increase the photocurrent.