Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
701035 | Diamond and Related Materials | 2009 | 4 Pages |
Abstract
Charge transfer in polypyrrole–diamond system is studied by conductivity measurements of a channel made of H-terminated diamond in the dark and under illumination. Micrometer-sized channels of conductive hydrogen-terminated diamond are lithographically fabricated on the surface of monocrystalline intrinsic diamond crystal by selective oxygen plasma treatment. The channels are interrupted by electrochemically synthesized micrometer-sized polypyrrole clusters. Similar characterizations are performed on channels interrupted by surface oxidation. Based on the increase and spectral response of the photo-current in the system, doping of diamond by charge carriers from polypyrrole is deduced.
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Authors
J. Čermák, A. Kromka, M. Ledinský, B. Rezek,