Details of Grant 

EPSRC Reference:	GR/L84308/01
Title:	THE ELECTROCHEMISTRY OF SEMICONDUCTING DIAMOND ELECTRODES
Principal Investigator:	Riley, Professor DJ
Other Investigators:	May, Professor PW
Researcher Co-Investigators:
Project Partners:
Department:	Chemistry
Organisation:	University of Bristol
Scheme:	Standard Research (Pre-FEC)
Starts:	31 August 1998	Ends:	30 May 2002	Value (£):	158,976
EPSRC Research Topic Classifications:	Electrochemical Science & Eng.
EPSRC Industrial Sector Classifications:	No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
This proposal is concerned with the preparation, characterisation and applications of boron doped CVD diamond films. Initial studied will focus on the deposition of boron doped diamond on suitable substrates and the formation of Ohmic contacts. Techniques of controlling the doping density will be investigated. Fundamental and applied electrochemical studies of the as-prepared electrodes will be performed. Diamond is a wide bandgap semiconductor with a high density of interband states. The influence of these states on the electrochemical properties of the material will be assessed using A.C. Impedance and photocurrent spectroscopies. Impedance analysis will yield information on the distribution of charge at the electrode/electrolyte interface. The photocurrent will be monitored using both sub- and supra- bandgap radiation and the kinetics of photo-induced charge transfer will be investigated . Applied electrochemical studies will concentrate on the use of boron doped CVD diamond electrodes in sensor technologies. First, the possibility of utilising diamond electrodes in simple electroanalytical chemistry will be considered. The possible commercial advantages of such electrodes include the increased potential window in aqueous solutions and the high stability of the diamond surface. Second, the possibility of employing diamond electrodes as cold cathodes in the detection of organic chemiluminophores by electrochemiluminescence will
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Organisation Website:	http://www.bris.ac.uk