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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/20683

Title: N-V-related fluorescence of the monoenergetic high-energy electron-irradiated diamond nanoparticles
Authors: Remes, Z.
Micova, Julia
Krist, P.
Chvati, D.
Effenberg, R.
Nesladek, Milos
Issue Date: 2015
Publisher: WILEY-V C H VERLAG GMBH
Citation: PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 212 (11), p. 2519-2524
Abstract: Fluorescent diamond nanoparticles (FND) have recently been introduced as promising luminescent probes for bioimaging to compete with more commonly used fluorophores and quantum dots. In this work, we investigate the formation of NV color centers in diamond nanocrystallites using monoenergetic electrons. A large quantity (1.4 g) of FNDs has been irradiated in the cyclic relativistic electron accelerator (Microtron) with the surface charge up to 3C/cm(2) using collimated accelerated electrons extracted with monochromatic energies 6-25 MeV. The nitrogen-vacancy (NV) color centers have been activated by the high temperature vacuum annealing followed by the oxidation and sonification to remove sp2 carbon from the surface and to form stable colloid solutions with the concentration 1 mg/ml and the electro-kinetic (zeta) potential about -35 mV. The steady state fluorescence spectra show that the fluorescence yield increases linearly with the surface charge irradiation. (C) 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Notes: [Remes, Z.; Micova, J.] Czech Tech Univ, Fac Biomed Engn, Kladno 27201, Czech Republic. [Remes, Z.] ASCR, Vvi, Inst Phys, Prague 16200 6, Czech Republic. [Micova, J.] ASCR, Vvi, Inst Phys, Prague 18221 8, Czech Republic. [Micova, J.] Slovak Acad Sci, Inst Chem, Bratislava 84538 4, Slovakia. [Krist, P.; Chvati, D.] ASCR, Inst Nucl Phys, Dept Accelerators, Rez 25068, Czech Republic. [Effenberg, R.] Univ Chem & Technol, Tech 5, Prague 16628 6, Czech Republic. [Nesladek, M.] Hasselt Univ, Inst Mat Res, B-3590 Diepenbeek, Belgium. [Nesladek, M.] IMEC, IMOMEC, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/20683
DOI: 10.1002/pssa.201532180
ISI #: 000366588100022
ISSN: 1862-6300
Category: A1
Type: Journal Contribution
Validation: ecoom, 2017
Appears in Collections: Research publications

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