Note: Work function change measurement via improved Anderson method

Journal Article · Fri May 15 00:00:00 EDT 2015 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4921776· OSTI ID:22392525

Gołek, F.; Antczak, G. ^[1]

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1. Institute of Experimental Physics, University of Wrocław, Wrocław (Poland)

We propose the modification to the Anderson method of work function change (Δϕ) measurements. In this technique, the kinetic energy of the probing electrons is already low enough for non-destructive investigation of delicate molecular systems. However, in our implementation, all electrodes including filament of the electron gun are polarized positively. As a consequence, electron bombardment of any elements of experimental system is eliminated. Our modification improves cleanliness of the ultra-high vacuum system. As an illustration of the solution capabilities, we present Δϕ of the Ag(100) surface induced by cobalt phthalocyanine layers.

• OSTI ID: 22392525
• Journal Information: Review of Scientific Instruments, Vol. 86, Issue 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
COBALT COMPLEXES
ELECTRODES
ELECTRON BEAMS
ELECTRON GUNS
FILAMENTS
KINETIC ENERGY
MODIFICATIONS
PROBES
SURFACES
WORK FUNCTIONS