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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/20613

Title: Mass production of fluorescent nanodiamonds with a narrow emission intensity distribution
Authors: Stursa, Jan
Havlik, Jan
Petrakova, Vladimira
Gulka, Michal
Rails, Jan
Zach, Vaclav
Pulec, Zdenek
Stepan, Vaclav
Zargaleh, Soroush Abbasi
Ledvina, Miroslav
Nesladek, Milos
Treussart, Francois
Cigler, Petr
Issue Date: 2016
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Citation: CARBON, 96, p. 812-818
Abstract: Fluorescent diamond nanocrystals are attracting increasing interest for a broad range of applications, from biolabeling and single particle tracking to nanoscale magnetic field sensing. Their fluorescence stems from nitrogen-vacancy color centers created within synthetic diamond nanoparticles by hightemperature annealing, which results in the association of pre-existing nitrogen impurities and vacancies generated by high-energy particle (electron, proton, or helium ion) beam irradiation. Up to now, diamond nanocrystals have been irradiated as dry powder in a container or deposited as a thin layer on a flat substrate, depending on the type and energy of the irradiating particles. However, these techniques suffer from intrinsic inhomogeneities: the fluence of particles may vary over the whole sample area, as well as the thickness and density of the nanodiamond layer. Here, we present an approach based on direct large-scale irradiation of nanodiamonds in aqueous colloidal solution by high-energy protons. This approach results in a larger fraction of fluorescent particles, with a more homogenous distribution of nitrogen-vacancy centers per particle and less severe lattice damages compared to dry powder irradiation. (C) 2015 Elsevier Ltd. All rights reserved.
Notes: [Stursa, Jan; Rails, Jan; Zach, Vaclav; Pulec, Zdenek; Stepan, Vaclav] Nucl Phys Inst AS CR Vvi, Rez 25068, Czech Republic. [Havlik, Jan; Ledvina, Miroslav; Cigler, Petr] Inst Organ Chem & Biochem AS CR Vvi, Prague 16610 6, Czech Republic. [Havlik, Jan] Charles Univ Prague, Fac Sci, Prague 12840 2, Czech Republic. [Petrakova, Vladimira; Gulka, Michal; Nesladek, Milos] Czech Tech Univ, Fac Biomed Engn, Kladno 27201, Czech Republic. [Petrakova, Vladimira; Gulka, Michal] Inst Phys AS CR Vvi, Prague 18201 8, Czech Republic. [Zargaleh, Soroush Abbasi; Treussart, Francois] Univ Paris 11, Lab Aime Cotton, CNRS, F-91405 Orsay, France. [Zargaleh, Soroush Abbasi; Treussart, Francois] Univ Paris Saclay, ENS Cachan, F-91405 Orsay, France. [Nesladek, Milos] Univ Hasselt, IMOMEC Div, IMEC, B-3590 Diepenbeek, Belgium. [Nesladek, Milos] Univ Hasselt, Inst Mat Res, B-3590 Diepenbeek, Belgium.
URI: http://hdl.handle.net/1942/20613
DOI: 10.1016/j.carbon.2015.09.111
ISI #: 000366078000095
ISSN: 0008-6223
Category: A1
Type: Journal Contribution
Validation: ecoom, 2017
Appears in Collections: Research publications

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