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

Journal Article · Tue Mar 15 00:00:00 EDT 2016 · Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films

DOI:https://doi.org/10.1116/1.4936082· OSTI ID:22489796

Alexander, Anna; Moody, Nathan A. ^[1]

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1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

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.

• OSTI ID: 22489796
• Journal Information: Journal of Vacuum Science and Technology. A, Vacuum, Surfaces and Films, Vol. 34, Issue 2; Other Information: (c) 2015 American Vacuum Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0734-2101
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ABSORPTION
ELECTRODES
GEOMETRY
METALS
QUANTUM EFFICIENCY
RESONANCE
SIMULATION
SURFACES