Surface and volume photoeffect from metal nanoparticles with electron mass discontinuity

Quantum efficiencies of surface (SPE) and volume (VPE) photo-emissions from metal nanoparticles are calculated by quantum mechanical perturbation theory compared with each other. Along discontinuities in the potential barrier dielectric function, discontinuity electron effective mass on metal-environment interface is taken into account. General formulas for SPE VPE derived. An example spherical gold particles rectangular considered, analytical red border photoemission It found that efficiency less decreased reduction than VPE, so more efficient small large mass. Nanoparticle size, when to be tens nm or less.