Enhanced quantum efficiency of photoelectron emission, through surface textured metal electrodes | Zendy

Anna Alexander | Zendy; Nathan A. Moody | Zendy; Prabhakar R. Bandaru | Zendy

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Enhanced quantum efficiency of photoelectron emission, through surface textured metal electrodes

Author(s) -

Anna Alexander,

Nathan A. Moody,

Prabhakar R. Bandaru

Publication year - 2015

Publication title -

journal of vacuum science and technology a vacuum surfaces and films

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.583

H-Index - 112

eISSN - 1520-8559

pISSN - 0734-2101

DOI - 10.1116/1.4936082

Subject(s) - quantum efficiency , electrode , groove (engineering) , extant taxon , surface (topology) , materials science , metal , quantum , x ray photoelectron spectroscopy , absorption (acoustics) , texture (cosmology) , atomic physics , optoelectronics , molecular physics , chemistry , geometry , physics , nuclear magnetic resonance , composite material , quantum mechanics , image (mathematics) , computer science , mathematics , evolutionary biology , artificial intelligence , metallurgy , biology

It is predicted that the quantum efficiency (QE) of photoelectron emission from metals may be enhanced, possibly by an order of magnitude, through optimized surface texture. Through extensive computational simulations, it is shown that the absorption enhancement in select surface groove geometries may be a dominant contributor to enhanced QE and corresponds to localized Fabry–Perot resonances. The inadequacy of extant analytical models in predicting the QE increase, and suggestions for further improvement, are discussed.

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