Journal ArticleDOI
A critique of the Kelvin method of measuring work functions
N A Surplice,R J D'Arcy +1 more
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In this paper, a critical discussion is given of the Kelvin method of measuring work functions and surface potentials, and the practical limits to its precision are discussed in turn: these are noise, the effects of stray capacitance, and variations in the work function of the reference surface.Abstract:
A critical discussion is given of the Kelvin method of measuring work functions and surface potentials. There is a short description of the theory and a review of the technical development of the method. The practical limits to its precision are discussed in turn: these are noise, the effects of stray capacitance, and variations in the work function of the reference surface. Suggestions are made for a new technical variation of the method, and for a new type of reference surface that should have advantages for measuring the surface potentials of gases on metals.read more
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Molecular structure of water at interfaces: wetting at the nanometer scale.
Journal ArticleDOI
Piezoelectric driven Kelvin probe for contact potential difference studies
K. Besocke,S. Berger +1 more
TL;DR: In this article, a piezoelectric driven Kelvin probe for the measurement of work function changes is described, which can be mounted on any 35mm i.d. UHV flange.
Journal ArticleDOI
Noise and the Kelvin method
TL;DR: In this paper, the authors discuss the general noise spectrum and describe an alternative "off-null" approach utilizing a data acquisition system (DAS) based measuring system that features an active suspension system (ASS), automatic set-up, and software elimination of driver talkover.
Journal ArticleDOI
Work function changes in gas sensitive materials: Fundamentals and applications
TL;DR: In this paper, the main issues concerning the work function changes in gas sensitive materials, giving few representative examples, are reviewed and discussed in connection with their proven practical or possible applications, and specific features of both, conducting and insulating gas sensing materials, are summarily analyzed and compared with the goal of advancing towards a better understanding of the mechanisms responsible for the field effect gas sensing.
Journal ArticleDOI
Diffusion of oxygen on tungsten (110)
TL;DR: In this article, the surface diffusion of oxygen on W(110) was studied in the temperature range 760-880°C and for coverages up to one monolayer.
References
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Journal ArticleDOI
A new method of measuring contact potential differences in metals
TL;DR: In this paper, a method for measuring the contact potential differences between dissimilar metals is described, which enables one to measure the p.d. to 1/1000 volt in a few seconds of manipulation.
Journal ArticleDOI
The work function of gold
TL;DR: The work function of gold films prepared by evaporation of spectrographically pure gold under ultra-high vacuum was determined in this paper, using photoelectric emission and retarding potential technique.
Journal ArticleDOI
Work Function Variation of Metals Coated by Metallic Films
TL;DR: In this article, a theoretical correlation is derived to account for the variation of the work function of refractory metals coated by metallic films for all degrees of coverage, based on an extension of the concept of electronegativity to composite surfaces.