Synthesis and Quantum Metrology of Metal–Organic Framework-Coated Nanodiamonds Containing Nitrogen Vacancy Centers [plus supplemental information]

Shugayev, Roman A.; Crawford, Scott E.; Baltrus, John P.; Diemler, Nathan A.; Ellis, James E.; Kim, Ki-Joong; Cvetic, Patricia C.

doi:10.1021/acs.chemmater.1c01386

Synthesis and Quantum Metrology of Metal–Organic Framework-Coated Nanodiamonds Containing Nitrogen Vacancy Centers [plus supplemental information]

Journal Article · Thu Aug 12 00:00:00 EDT 2021 · Chemistry of Materials

DOI:https://doi.org/10.1021/acs.chemmater.1c01386· OSTI ID:1817680

Shugayev, Roman A. ^[1]; ^[1]; Baltrus, John P. ^[1]; Diemler, Nathan A. ^[2]; Ellis, James E. ^[1]; ^[2]; Cvetic, Patricia C. ^[2]

National Energy Technology Lab. (NETL), Pittsburgh, PA (United States)
National Energy Technology Lab. (NETL), Pittsburgh, PA (United States); Leidos Research Support Team, Pittsburgh, PA (United States)

Fluorescent nanodiamonds (NDs) containing nitrogen vacancy centers (NV) have promising applications in quantum sensing, quantum computing, catalytic, and imaging applications. Functionalization of NDs with an ordered, porous coating can provide well-defined sites for ND immobilization and analyte interaction with the ND surface, furnish-ing a tunable environment for quantum applications and catalysis. Here, a facile strategy for functionalizing NV NDs with the biocompatible zeolitic imidazole framework-8 (ZIF-8) metal-organic framework (MOF) is demonstrated. The compo-sites were structurally characterized by electron microscopy, x-ray diffraction, and x-ray photoelectron spectroscopy, indi-cating the formation of well-dispersed ND 3D structures supported by a MOF matrix. Crucially, the fluorescence and opti-cally detected magnetic resonance properties were preserved following ZIF-8 encapsulation, while spin relaxometry studies indicate that MOF functionalization lengthens the spin longitudinal relaxation time T₁, a critical quantum parameter for sensing applications. We further demonstrate that the average number of NDs per MOF can be controlled by increasing the concentration of NDs used in the synthesis. The tunable design of NDs@MOF materials has important implications for quantum sensing, quantum computing, and related applications, and the synthetic strategy and optical characterization data presented here provide a foundation for future exploration of ND@MOF systems.

View Accepted Manuscript (DOE)

Research Organization:: National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)

Sponsoring Organization:: USDOE Office of Fossil Energy (FE)

Grant/Contract Number:: 89243318CFE000003

OSTI ID:: 1817680

Alternate ID(s):: OSTI ID: 1817681
OSTI ID: 1867578

Journal Information:: Chemistry of Materials, Journal Name: Chemistry of Materials Journal Issue: 16 Vol. 33; ISSN 0897-4756

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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