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Electrochemical Charge Transfer to Diamond and Other Materials

Published online by Cambridge University Press:  31 January 2011

Vidhya Chakrapani ,
John C. Angus ,
Kathleen Kash ,
Alfred B. Anderson ,
Sharvil Desai  and
Gamini Sumanasekera
Vidhya Chakrapani
Affiliation:
vchakrapani@gmail.com, Case Western Reserve University, Chemical Engineering, Cleveland, Ohio, United States
John C. Angus
Affiliation:
john.angus@case.edu, Case Western Reserve University, Chemical Engineering, Cleveland, Ohio, United States
Kathleen Kash
Affiliation:
kathleen.kash@case.edu, Case Western Reserve University, Chemical Engineering, Cleveland, Ohio, United States
Alfred B. Anderson
Affiliation:
aba@po.cwru.edu, Case Western Reserve University, Chemical Engineering, Cleveland, Ohio, United States
Sharvil Desai
Affiliation:
sharvil.desai@louisville.edu, University of Louisville, Physics, Louisville, Kentucky, United States
Gamini Sumanasekera
Affiliation:
gamini.sumanasekera@louisville.edu, University of Louisville, Physics, Louisville, Kentucky, United States
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Abstract

The oxygen redox couple in adsorbed water films acts as an “electrochemical ground” that tends to pin the Fermi level in solids at the electrochemical potential of the redox couple. We discuss this effect on the conductivity of diamond; the conductivity type of sp2-based carbons including single-walled, semiconducting carbon nanotubes and graphene; the photoluminescence of GaN and ZnO; and the contact charging of metals.

Keywords

diamondelectrical propertiesluminescence
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1203: Symposium J – Diamond Electronics and Bioelectronics-Fundamentals to Applications III , 2009 , 1203-J07-01
Copyright
Copyright © Materials Research Society 2010

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