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Hotspot Generation for Unique Identification with Nanomaterials

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Hotspot Generation for Unique Identification with Nanomaterials. / Abdelazim, Nema; Fong, James; McGrath, Thomas et al.
In: Scientific Reports, Vol. 11, 1528, 15.01.2021.

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@article{0718e84d260e438582409edf58a915c9,
title = "Hotspot Generation for Unique Identification with Nanomaterials",
abstract = "Nanoscale variations in the structure and composition of an object are an enticing basis for verifying its identity, due to the physical complexity of attempting to reproduce such a system. The biggest practical challenge for nanoscale authentication lies in producing a system that can be assessed with a facile measurement. Here, a system is presented in which InP/ZnS quantum dots are randomly distributed on a surface of aluminium coated with gold nanoparticles (NPs). Variations in the local arrangement of the QDs and NPs is shown to lead to interactions between them, which can suppress or enhance fluorescence from the QDs. This position-dependent interaction can be mapped, allowing intensity, emission dynamics, and/or wavelength variations to be used to uniquely identify a specific sample at the nanoscale with a far-field optical measurement. This demonstration could pave the way to producing robust anti-counterfeiting devices.",
keywords = "quantum, PUF, security",
author = "Nema Abdelazim and James Fong and Thomas McGrath and Christopher Woodhead and Furat Al-Saymari and Bagci, {Ibrahim Ethem} and Alexander Jones and Xintai Wang and Robert Young",
year = "2021",
month = jan,
day = "15",
doi = "10.1038/s41598-020-79644-w",
language = "English",
volume = "11",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Hotspot Generation for Unique Identification with Nanomaterials

AU - Abdelazim, Nema

AU - Fong, James

AU - McGrath, Thomas

AU - Woodhead, Christopher

AU - Al-Saymari, Furat

AU - Bagci, Ibrahim Ethem

AU - Jones, Alexander

AU - Wang, Xintai

AU - Young, Robert

PY - 2021/1/15

Y1 - 2021/1/15

N2 - Nanoscale variations in the structure and composition of an object are an enticing basis for verifying its identity, due to the physical complexity of attempting to reproduce such a system. The biggest practical challenge for nanoscale authentication lies in producing a system that can be assessed with a facile measurement. Here, a system is presented in which InP/ZnS quantum dots are randomly distributed on a surface of aluminium coated with gold nanoparticles (NPs). Variations in the local arrangement of the QDs and NPs is shown to lead to interactions between them, which can suppress or enhance fluorescence from the QDs. This position-dependent interaction can be mapped, allowing intensity, emission dynamics, and/or wavelength variations to be used to uniquely identify a specific sample at the nanoscale with a far-field optical measurement. This demonstration could pave the way to producing robust anti-counterfeiting devices.

AB - Nanoscale variations in the structure and composition of an object are an enticing basis for verifying its identity, due to the physical complexity of attempting to reproduce such a system. The biggest practical challenge for nanoscale authentication lies in producing a system that can be assessed with a facile measurement. Here, a system is presented in which InP/ZnS quantum dots are randomly distributed on a surface of aluminium coated with gold nanoparticles (NPs). Variations in the local arrangement of the QDs and NPs is shown to lead to interactions between them, which can suppress or enhance fluorescence from the QDs. This position-dependent interaction can be mapped, allowing intensity, emission dynamics, and/or wavelength variations to be used to uniquely identify a specific sample at the nanoscale with a far-field optical measurement. This demonstration could pave the way to producing robust anti-counterfeiting devices.

KW - quantum

KW - PUF

KW - security

U2 - 10.1038/s41598-020-79644-w

DO - 10.1038/s41598-020-79644-w

M3 - Journal article

VL - 11

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 1528

ER -