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On the mechanism of charge transfer between neutral and negatively charged nitrogen-vacancy color centers in diamond

Published online by Cambridge University Press:  07 March 2011

Vladimira Petrakova ,
Andrew Taylor ,
Irena Kratochvilova ,
Frantisek Fendrych ,
Petr Cigler ,
Miroslav Ledvina ,
Jan Kucka ,
Jan Stursa ,
Jan Ralis  and
Jiri Vacik
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Vladimira Petrakova
Affiliation:
Czech Technical University, Faculty of Biomedical Engineering, Kladno, Czech Republic;
Andrew Taylor
Affiliation:
Academy of Sciences of the Czech Republic, Institute of Physics, v.v.i, Prague, Czech Republic;
Irena Kratochvilova
Affiliation:
Academy of Sciences of the Czech Republic, Institute of Physics, v.v.i, Prague, Czech Republic;
Frantisek Fendrych
Affiliation:
Academy of Sciences of the Czech Republic, Institute of Physics, v.v.i, Prague, Czech Republic;
Petr Cigler
Affiliation:
Gilead Science and IOCB Research Center, Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic;
Miroslav Ledvina
Affiliation:
Gilead Science and IOCB Research Center, Institute of Organic Chemistry and Biochemistry, v.v.i., Academy of Sciences of the Czech Republic, Prague, Czech Republic;
Jan Kucka
Affiliation:
Institute of Nuclear Physics, Academy of Sciences of the Czech Republic, v.v.i, Rez near Prague, Czech Republic;
Jan Stursa
Affiliation:
Institute of Nuclear Physics, Academy of Sciences of the Czech Republic, v.v.i, Rez near Prague, Czech Republic;
Jan Ralis
Affiliation:
Institute of Nuclear Physics, Academy of Sciences of the Czech Republic, v.v.i, Rez near Prague, Czech Republic;
Jiri Vacik
Affiliation:
Institute of Nuclear Physics, Academy of Sciences of the Czech Republic, v.v.i, Rez near Prague, Czech Republic;
Milos Nesladek
Affiliation:
IMOMEC division, IMEC, Institute for Materials Research, University Hasselt, Diepenbeek, Belgium;
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Abstract

The presented work aims for the development of optically-traceable intracellular nanodiamond sensors, where photoluminescence can be changed by biomolecular attachment/delivery event. High biocompatibility, small size and stable luminescence from its color centers, makes nanodiamond (ND) particles an attractive alternative to molecular dyes for drug-delivery and cell-imaging applications. In our work we study how the surface modification of ND can change ND luminescence spectra. This method can be used as a novel detection tool for remote monitoring of chemical processes in biological systems. We discuss photoluminescence (PL) spectra of oxidized and hydrogenated ND and a single crystal diamond, containing engineered NV centers. The hydrogenation of ND leads to quenching of NV- related luminescence and a PL shift due to changing of occupation from NV- to NV0 states. We model this effect using electrical potential changes at the diamond surface.

Keywords

diamondnanoscaleluminescence
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1282: Symposium A – Diamond Electronics and Bioelectronics—Fundamentals to Applications IV , 2011 , mrsf10-1282-a07-05
Copyright
Copyright © Materials Research Society 2011

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References

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