Nanoassembly of quantum emitters in hexagonal boron nitride and gold nanospheres

Nguyen, M; Kim, S; Tran, TT; Xu, ZQ; Kianinia, M; Toth, M; Aharonovich, I

Nanoassembly of quantum emitters in hexagonal boron nitride and gold nanospheres

Nguyen, M Kim, S

Tran, TT

Xu, ZQ

Kianinia, M Toth, M

Aharonovich, I

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Publication Type:: Journal Article
Citation:: Nanoscale, 2018, 10 (5), pp. 2267 - 2274
Issue Date:: 2018-02-07

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Field	Value	Language
dc.contributor.author	Nguyen, M	en_US
dc.contributor.author	Kim, S https://orcid.org/0000-0001-9836-3608	en_US
dc.contributor.author	Tran, TT https://orcid.org/0000-0001-8960-0253	en_US
dc.contributor.author	Xu, ZQ https://orcid.org/0000-0001-7291-1426	en_US
dc.contributor.author	Kianinia, M	en_US
dc.contributor.author	Toth, M https://orcid.org/0000-0003-1564-4899	en_US
dc.contributor.author	Aharonovich, I https://orcid.org/0000-0003-4304-3935	en_US
dc.date.issued	2018-02-07	en_US
dc.identifier.citation	Nanoscale, 2018, 10 (5), pp. 2267 - 2274	en_US
dc.identifier.issn	2040-3364	en_US
dc.identifier.uri	http://hdl.handle.net/10453/130735
dc.description.abstract	© 2018 The Royal Society of Chemistry. The assembly of quantum nanophotonic systems with plasmonic resonators is important for fundamental studies of single photon sources as well as for on-chip information processing. In this work, we demonstrate the controllable nanoassembly of gold nanospheres with ultra-bright narrow-band quantum emitters in 2D layered hexagonal boron nitride (hBN). We utilize an atomic force microscope (AFM) tip to precisely position gold nanospheres to close proximity to the quantum emitters and observe the resulting emission enhancement and fluorescence lifetime reduction. The extreme emitter photostability permits analysis at high excitation powers, and delineation of absorption and emission enhancement caused by the plasmonic resonators. A fluorescence enhancement of over 300% is achieved experimentally for quantum emitters in hBN, with a radiative quantum efficiency of up to 40% and a saturated count rate in excess of 5 × 106 counts per s. Our results are promising for the future employment of quantum emitters in hBN for integrated nanophotonic devices and plasmonic based nanosensors.	en_US
dc.relation.ispartof	Nanoscale	en_US
dc.relation.isbasedon	10.1039/c7nr08249e	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.title	Nanoassembly of quantum emitters in hexagonal boron nitride and gold nanospheres	en_US
dc.type	Journal Article
utslib.citation.volume	5	en_US
utslib.citation.volume	10	en_US
utslib.for	1007 Nanotechnology	en_US
utslib.for	0206 Quantum Physics	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	02 Physical Sciences	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	10 Technology	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - IBMD - Initiative for Biomedical Devices
pubs.organisational-group	/University of Technology Sydney/Strength - MTEE - Research Centre Materials and Technology for Energy Efficiency
utslib.copyright.status	closed_access
pubs.issue	5	en_US
pubs.publication-status	Published	en_US
pubs.volume	10	en_US

Abstract:

© 2018 The Royal Society of Chemistry. The assembly of quantum nanophotonic systems with plasmonic resonators is important for fundamental studies of single photon sources as well as for on-chip information processing. In this work, we demonstrate the controllable nanoassembly of gold nanospheres with ultra-bright narrow-band quantum emitters in 2D layered hexagonal boron nitride (hBN). We utilize an atomic force microscope (AFM) tip to precisely position gold nanospheres to close proximity to the quantum emitters and observe the resulting emission enhancement and fluorescence lifetime reduction. The extreme emitter photostability permits analysis at high excitation powers, and delineation of absorption and emission enhancement caused by the plasmonic resonators. A fluorescence enhancement of over 300% is achieved experimentally for quantum emitters in hBN, with a radiative quantum efficiency of up to 40% and a saturated count rate in excess of 5 × 106 counts per s. Our results are promising for the future employment of quantum emitters in hBN for integrated nanophotonic devices and plasmonic based nanosensors.

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http://hdl.handle.net/10453/130735