Geometrical factors in enhanced photoyield from small metal particles

Details Geometrical factors in enhanced photoyield from small metal particles Geometrical factors in enhanced photoyield from small metal particles

Nov 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phrvl..57.2737c&link_type=abstract

Physical Review Letters, Volume 57, Issue 21, November 24, 1986, pp.2737-2740

Physics

13

Relaxation Times And Mean Free Paths, Surface Double Layers, Schottky Barriers, And Work Functions

Scientific paper

A model in which photoexcited electrons in small metal particles are scattered elastically from the boundaries and travel inelastically within is included in a free-electron theory which successfully explains the enhanced photoelectric quantum yield of these systems relative to macroscopic metal surfaces. Application of the theory to the Ag-O-Cs photoemitter where elastic scattering dominates, and Ag aerosols where optical thickness and energy threshold differences between particles of different diameters dominate, gives good results with experiment.

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