Journal Article10.1063/1.1150030
Surface photovoltage measurements in liquids
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TL;DR: In this paper, a simple, compact, and robust arrangement for surface photovoltage measurements of free semiconductor surfaces immersed in liquids is presented, where the semiconductor sample is put in a liquid-containing, electrically insulating vessel, with an optically transparent window, situated between the sample and the Kelvin probe.
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Abstract: We present a simple, compact, and robust arrangement for surface photovoltage measurements of free semiconductor surfaces immersed in liquids. It is based on the classical Kelvin probe arrangement, where the semiconductor sample is put in a liquid-containing, electrically insulating vessel, with an optically transparent window, situated between the sample and the Kelvin probe. At the price of permitting relative, rather than absolute, contact potential difference values, this modification enables easy, routine surface photovoltage measurements of semiconductors in any kind of liquid ambient. The validity and efficiency of this approach are demonstrated by surface photovoltage spectra obtained from the p-InP(100) surface in various liquid etchants.
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Citations
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(Photo)electrochemical Methods for the Determination of the Band Edge Positions of TiO2-Based Nanomaterials
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Surface Photovoltage Spectroscopy of Dye-Sensitized Solar Cells with TiO2, Nb2O5, and SrTiO3 Nanocrystalline Photoanodes: Indication for Electron Injection from Higher Excited Dye States
Frank Lenzmann,Jessica Krueger,Shelly D. Burnside,Keith G. Brooks,Michael Grätzel,Doron Gal,and Sven Rühle,David Cahen +7 more
TL;DR: In this article, the onset wavelengths of the surface photovoltage (SPV) in dye-sensitized solar cells (DSSCs) with different mesoporous, wideband gap electron conductor anode materials, viz., TiO2 (anatase), Nb2O5 (amorphous and crystalline), and SrTiO3, using the same Ru bis-bipyridyl dye for all experiments, are different.
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References
Surface properties of germanium
Walter H. Brattain,John Bardeen +1 more
TL;DR: In this article, the authors measured the contact potential (c.p.) and the change of contact potential with illumination (Δcp.) L of several germanium surfaces and found that the c.p. could be cycled between two extremes about 0.5 volts apart by changing the gaseous ambient.
547
•Book
Surfaces and interfaces of solids
Hans Lüth
- 01 Jan 1993
TL;DR: In this paper, a comprehensive introduction to the physics of surfaces and interfaces of solids is presented, focusing on the electronic properties of semiconductor interfaces and heterostructures, as well as fundamental aspects of adsorption and layer growth.
268
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.
192
Application of a Kelvin Microprobe to the Corrosion of Metals in Humid Atmospheres
TL;DR: The principle of operation and the design of a scanning Kelvin microprobe for the determination of corrosion potential profiles are described in this article, where the profiles of Volta potentials on galvanically coupled metals under humidity films were determined and compared to profiles for the same metals under dry nitrogen.
161
A critique of the Kelvin method of measuring work functions
N A Surplice,R J D'Arcy +1 more
TL;DR: 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.
126