Diamond surface engineering for molecular sensing with nitrogen—vacancy centers

Janitz, Erika; Herb, Konstantin; Völker, Laura A.; Huxter, William S.; Degen, Christian L.; Abendroth, John M.

doi:10.1039/d2tc01258h

Cited by 39 publications

(33 citation statements)

References 429 publications

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“…2 A) 25 . We chose to facilitate adhesion of the SURMOF by coating the diamond surface with a 1 nm thick layer of alumina (Al 2 O 3 ) via atomic layer deposition (ALD) 28,29 .…”

Section: Resultsmentioning

confidence: 99%

Using metal-organic frameworks to confine liquid samples for nanoscale NV-NMR

Liu

Rizzato

et al. 2022

Preprint

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Atomic-scale magnetic field sensors based on nitrogen vacancy (NV) defects in diamonds are an exciting platform for nanoscale nuclear magnetic resonance (NMR) spectroscopy. The detection of NMR signals from a few zeptoliters to single molecules or even single nuclear spins has been demonstrated using NV-centers close to the diamond surface. However, fast molecular diffusion of sample molecules in and out of nanoscale detection volumes impedes their detection and limits current experiments to solid-state or highly viscous samples. Here, we show that restricting diffusion by confinement enables nanoscale NMR spectroscopy of liquid samples. Our approach uses metal-organic frameworks (MOF) with angstrom-sized pores on a diamond chip to trap sample molecules near the NV-centers. This enables the detection of NMR signals from a liquid sample, which would not be detectable without confinement. These results set the route for nanoscale liquid-phase NMR with high spectral resolution.

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“…2 A) 25 . We chose to facilitate adhesion of the SURMOF by coating the diamond surface with a 1 nm thick layer of alumina (Al 2 O 3 ) via atomic layer deposition (ALD) 28,29 .…”

Section: Resultsmentioning

confidence: 99%

Using metal-organic frameworks to confine liquid samples for nanoscale NV-NMR

Liu

Rizzato

et al. 2022

Preprint

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“…In addition to stabilizing the charge state, oxygen termination has demonstrated improved T 2 times [457], [465], [482], and is therefore commonly used for quantum applications based on NV centers [483]. For completeness, charge state control via surface termination was recently demonstrated for the SiV center, where oxygen and hydrogen termination stabilized the negative and neutral charge state, respectively [121].…”

Section: Surface Termination and Charge State Controlmentioning

confidence: 99%

Diamond Integrated Quantum Nanophotonics: Spins, Photons and Phonons

Shandilya

Flågan

Carvalho

et al. 2022

J. Lightwave Technol.

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Integrated quantum photonics devices in diamond have tremendous potential for many quantum applications, including long-distance quantum communication, quantum information processing, and quantum sensing. These devices benefit from diamond's combination of exceptional thermal, optical, and mechanical properties. Its wide electronic bandgap makes diamond an ideal host for a variety of optical active spin qubits that are key building blocks for quantum technologies. In landmark experiments, diamond spin qubits have enabled demonstrations of remote entanglement, memory-enhanced quantum communication, and multi-qubit spin registers with fault-tolerant quantum error correction, leading to the realization of multinode quantum networks. These advancements put diamond at the forefront of solid-state material platforms for quantum information processing. Recent developments in diamond nanofabrication techniques provide a promising route to further scaling of these landmark experiments towards real-life quantum technologies. In this paper, we focus on the recent progress in creating integrated diamond quantum photonic devices, with particular emphasis on spin-photon interfaces, cavity optomechanical devices, and spin-phonon transduction. Finally, we discuss prospects and remaining challenges for the use of diamond in scalable quantum technologies.

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“…At the same time, the surface terminations, shape, and geometrical dimensions of the host diamond crystals could be easily modulated by their synthesis methods (e.g., high-pressure high-temperature (HPHT) 45 , chemical vapor deposition (CVD) 46 techniques and other post-treatments (e.g., chemical modi cations 47 , focused ion beam etching, 48 and air oxidation 49 ). As a result, these luminescent color centers are prone to the surface properties, structures, and shapes of diamond particles, and it is impossible for them to be cloned or counterfeited accurately.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing unclonable anti-counterfeiting labels using robust diamond microparticles on heterogeneous substrates

Zhang

Wang

et al. 2022

Preprint

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The growing prevalence of counterfeit products worldwide poses serious threats to economic security and human health. Developing advanced encryption materials with physical unclonable functions offers an attractive defense against counterfeiting. Here, we have successfully developed multimodal, dynamic and unclonable anti-counterfeiting labels based on high-quality diamond microparticles containing silicon-vacancy (SiV) centers. These chaotic microparticles were heterogeneously grown on silicon substrate by chemical vapor deposition, facilitating scalable and massive fabrication at low cost. Due to the non-deterministic nature of this growth method, the intrinsically unclonable function has been introduced by the randomized features of each individual particle. In particular, the extremely stable signals of SiV photoluminescence (PL) and light scattering from diamond microparticles are shown to enable high-capacity optical encryption. Moreover, time-dependent encryption has been achieved by dynamically modulating the SiV PL signals and/or controlling packed patterns of diamond microparticles via post air oxidation. Exploiting the robustness of diamond, the developed diamond-based labels exhibit ultrahigh stability in different extreme application scenarios, including harsh chemical environments, high temperature, mechanical abrasion, and UV light irradiation. Our proposed system, with its extreme randomness, multimode and dynamic encryption capability and outstanding robustness, can be practically applied immediately as anti-counterfeiting labels in diverse fields.

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Diamond surface engineering for molecular sensing with nitrogen—vacancy centers

Abstract: Quantum sensing with shallow nitrogen-vacancy (NV) centers in diamond offer promise for chemical analysis. Preserving favorable NV spin and charge properties while enabling molecular surface functionalization remains a critical challenge.

Cited by 39 publications

References 429 publications

Using metal-organic frameworks to confine liquid samples for nanoscale NV-NMR

Using metal-organic frameworks to confine liquid samples for nanoscale NV-NMR

Diamond Integrated Quantum Nanophotonics: Spins, Photons and Phonons

Manufacturing unclonable anti-counterfeiting labels using robust diamond microparticles on heterogeneous substrates

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