Nanodiamond arrays on glass for quantification and fluorescence characterisation

Abstract Quantifying the variation in emission properties of fluorescent nanodiamonds is important for developing their wide-ranging applicability. Directed self-assembly techniques show promise for positioning nanodiamonds precisely enabling such quantification. Here we show an approach for deposit...

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Autores principales:	Ashleigh H. Heffernan, Andrew D. Greentree, Brant C. Gibson
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9b29472de81245f68a6719ddcfdda117
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spelling	oai:doaj.org-article:9b29472de81245f68a6719ddcfdda1172021-12-02T15:06:07ZNanodiamond arrays on glass for quantification and fluorescence characterisation10.1038/s41598-017-09457-x2045-2322https://doaj.org/article/9b29472de81245f68a6719ddcfdda1172017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-09457-xhttps://doaj.org/toc/2045-2322Abstract Quantifying the variation in emission properties of fluorescent nanodiamonds is important for developing their wide-ranging applicability. Directed self-assembly techniques show promise for positioning nanodiamonds precisely enabling such quantification. Here we show an approach for depositing nanodiamonds in pre-determined arrays which are used to gather statistical information about fluorescent lifetimes. The arrays were created via a layer of photoresist patterned with grids of apertures using electron beam lithography and then drop-cast with nanodiamonds. Electron microscopy revealed a 90% average deposition yield across 3,376 populated array sites, with an average of 20 nanodiamonds per site. Confocal microscopy, optimised for nitrogen vacancy fluorescence collection, revealed a broad distribution of fluorescent lifetimes in agreement with literature. This method for statistically quantifying fluorescent nanoparticles provides a step towards fabrication of hybrid photonic devices for applications from quantum cryptography to sensing.Ashleigh H. HeffernanAndrew D. GreentreeBrant C. GibsonNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ashleigh H. Heffernan Andrew D. Greentree Brant C. Gibson Nanodiamond arrays on glass for quantification and fluorescence characterisation
description	Abstract Quantifying the variation in emission properties of fluorescent nanodiamonds is important for developing their wide-ranging applicability. Directed self-assembly techniques show promise for positioning nanodiamonds precisely enabling such quantification. Here we show an approach for depositing nanodiamonds in pre-determined arrays which are used to gather statistical information about fluorescent lifetimes. The arrays were created via a layer of photoresist patterned with grids of apertures using electron beam lithography and then drop-cast with nanodiamonds. Electron microscopy revealed a 90% average deposition yield across 3,376 populated array sites, with an average of 20 nanodiamonds per site. Confocal microscopy, optimised for nitrogen vacancy fluorescence collection, revealed a broad distribution of fluorescent lifetimes in agreement with literature. This method for statistically quantifying fluorescent nanoparticles provides a step towards fabrication of hybrid photonic devices for applications from quantum cryptography to sensing.
format	article
author	Ashleigh H. Heffernan Andrew D. Greentree Brant C. Gibson
author_facet	Ashleigh H. Heffernan Andrew D. Greentree Brant C. Gibson
author_sort	Ashleigh H. Heffernan
title	Nanodiamond arrays on glass for quantification and fluorescence characterisation
title_short	Nanodiamond arrays on glass for quantification and fluorescence characterisation
title_full	Nanodiamond arrays on glass for quantification and fluorescence characterisation
title_fullStr	Nanodiamond arrays on glass for quantification and fluorescence characterisation
title_full_unstemmed	Nanodiamond arrays on glass for quantification and fluorescence characterisation
title_sort	nanodiamond arrays on glass for quantification and fluorescence characterisation
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/9b29472de81245f68a6719ddcfdda117
work_keys_str_mv	AT ashleighhheffernan nanodiamondarraysonglassforquantificationandfluorescencecharacterisation AT andrewdgreentree nanodiamondarraysonglassforquantificationandfluorescencecharacterisation AT brantcgibson nanodiamondarraysonglassforquantificationandfluorescencecharacterisation
_version_	1718388599332798464

Nanodiamond arrays on glass for quantification and fluorescence characterisation

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