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Issue 20, 2014
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Single nickel-related defects in molecular-sized nanodiamonds for multicolor bioimaging: an ab initio study

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Abstract

Fluorescent nanodiamonds constitute an outstanding alternative to semiconductor quantum dots and dye molecules for in vivo biomarker applications, where the fluorescence comes from optically active point defects acting as color centers in the nanodiamonds. For practical purposes, these color centers should be photostable as a function of the laser power or the surface termination of nanodiamonds. Furthermore, they should exhibit a sharp and nearly temperature-independent zero-phonon line. In this study, we show by hybrid density functional theory calculations that nickel doped nanodiamonds exhibit the desired properties, thus opening the avenue to practical applications. In particular, harnessing the strong quantum confinement effect in molecule-sized nanodiamonds is very promising for achieving multicolor imaging by single nickel-related defects.

Graphical abstract: Single nickel-related defects in molecular-sized nanodiamonds for multicolor bioimaging: an ab initio study

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Publication details

The article was received on 06 Jun 2014, accepted on 03 Aug 2014 and first published on 05 Aug 2014


Article type: Paper
DOI: 10.1039/C4NR03112A
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Citation: Nanoscale, 2014,6, 12018-12025
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    Single nickel-related defects in molecular-sized nanodiamonds for multicolor bioimaging: an ab initio study

    G. Thiering, E. Londero and A. Gali, Nanoscale, 2014, 6, 12018
    DOI: 10.1039/C4NR03112A

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