TITLE

Relation between surface potential and pH

AUTHOR(S)
Williams, Richard; Labib, Mohamed E.
PUB. DATE
November 1987
SOURCE
Applied Physics Letters;11/30/1987, Vol. 51 Issue 22, p1860
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Applications involving the semiconductor-electrolyte interface require a good understanding of charge carrier transport at the interface and the related concept of Fermi level in an electrolyte. The meaning of electrolyte Fermi level is currently an active research question. As an experimental approach to the problem, we have developed a convenient technique, using a Kelvin probe. Using this, we can measure the surface potential without making contact to the solution. An important question is how the surface potential is related to the solution composition. We find that surface potential depends on the pH of the solution in a well-defined way. From our data, we can estimate the absolute emf of the hydrogen electrode. The result agrees well with published values, determined by other means.
ACCESSION #
9825075

 

Related Articles

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics