Title: Diamond surface functionalization via visible light–driven C–H activation for nanoscale quantum sensing

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
ORCiD logo [1];  [1];  [1]; ORCiD logo [1]; ORCiD logo [1];  [2];  [3];  [4];  [4]; ORCiD logo [5];  [6];  [7];  [8]; ORCiD logo [8];  [8];  [1];  [1]; ORCiD logo [1]; ORCiD logo [1]
  1. Princeton Univ., NJ (United States)
  2. Suranaree Univ. of Technology (Thailand)
  3. School of Science, RMIT University, Melbourne, VIC 3000, Australia; Univ. of Melbourne, VIC (Australia); Royal Melbourne Inst. of Technology, VIC (Australia)
  4. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
  5. Wigner Research Center for Physics, Budapest (Hungary)
  6. Wigner Research Center for Physics, Budapest (Hungary); Budapest Univ. of Technology and Economic (Hungary)
  7. Australian Nuclear Science and Technology Organisation (ANSTO), Clayton, VIC (Australia). Australian Synchrotron
  8. Univ. of California, Santa Barbara, CA (United States)

Nitrogen-vacancy (NV) centers in diamond are a promising platform for nanoscale NMR sensing. Despite significant progress toward using NV centers to detect and localize nuclear spins down to the single spin level, NV-based spectroscopy of individual, intact, arbitrary target molecules remains elusive. Such sensing requires that target molecules are immobilized within nanometers of NV centers with long spin coherence. The inert nature of diamond typically requires harsh functionalization techniques such as thermal annealing or plasma processing, limiting the scope of functional groups that can be attached to the surface. Solution-phase chemical methods can be readily generalized to install diverse functional groups, but they have not been widely explored for single-crystal diamond surfaces. Moreover, realizing shallow NV centers with long spin coherence times requires highly ordered single-crystal surfaces, and solution-phase functionalization has not yet been shown with such demanding conditions. In this work, we report a versatile strategy to directly functionalize C–H bonds on single-crystal diamond surfaces under ambient conditions using visible light, forming C–F, C–Cl, C–S, and C–N bonds at the surface. This method is compatible with NV centers within 10 nm of the surface with spin coherence times comparable to the state of the art. As a proof-of-principle demonstration, we use shallow ensembles of NV centers to detect nuclear spins from surface-bound functional groups. Our approach to surface functionalization opens the door to deploying NV centers as a tool for chemical sensing and single-molecule spectroscopy.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Northwestern Univ., Evanston, IL (United States); Princeton Univ., NJ (United States); Univ. of California, Santa Barbara, CA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; SC0018978; SC0019241; SC0021314
OSTI ID:
2320316
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 11 Vol. 121; ISSN 1091-6490; ISSN 0027-8424
Publisher:
National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

References (60)

Evidence for Primal sp 2 Defects at the Diamond Surface: Candidates for Electron Trapping and Noise Sources journal December 2018
The Fluorination of C−H Bonds: Developments and Perspectives journal August 2019
The Chemistry of CH Bond Activation on Diamond journal July 2010
Boron‐Doped Diamond Functionalization by an Electrografting/Alkyne–Azide Click Chemistry Sequence journal June 2014
NEXAFS Spectroscopy book January 1992
AES and XPS spectra of sulfur in sulfur compounds journal April 1981
Current issues and challenges in surface chemistry of nanodiamonds book April 2017
Nitrogen doped heat treated and activated hydrothermal carbon: NEXAFS examination of the carbon surface at different temperatures journal March 2018
Molecular and biomolecular monolayers on diamond as an interface to biology journal March 2005
Photochemical oxidation of hydrogenated boron-doped diamond surfaces journal September 2005
Amide bond formation and peptide coupling journal November 2005
Synthetic Applications of Proton-Coupled Electron Transfer journal July 2016
Direct Photocatalyzed Hydrogen Atom Transfer (HAT) for Aliphatic C–H Bonds Elaboration journal August 2021
Photoredox-Catalyzed C–H Functionalization Reactions journal September 2021
High-Density Covalent Grafting of Spin-Active Molecular Moieties to Diamond Surfaces journal July 2021
Single-Nitrogen–Vacancy NMR of Amine-Functionalized Diamond Surfaces journal September 2022
Advances in the Surface Functionalization of Nanodiamonds for Biological Applications: A Review journal October 2021
Site-Selective C–H Functionalization by Decatungstate Anion Photocatalysis: Synergistic Control by Polar and Steric Effects Expands the Reaction Scope journal December 2017
Catalyst-Controlled C–H Functionalization of Adamantanes Using Selective H-Atom Transfer journal May 2019
Oxidation and reduction potentials of transient free radicals journal January 1988
Site-Selective Aliphatic C–H Chlorination Using N -Chloroamides Enables a Synthesis of Chlorolissoclimide journal January 2016
C–H Xanthylation: A Synthetic Platform for Alkane Functionalization journal October 2016
Kinetics of Electrophilic Fluorinations of Enamines and Carbanions: Comparison of the Fluorinating Power of N–F Reagents journal August 2018
Homolytic bond dissociation energies for the cleavage of .alpha.-nitrogen-hydrogen bonds in carboxamides, sulfonamides, and their derivatives. The question of synergism in nitrogen-centered radicals journal May 1990
Innershell Absorption Spectroscopy of Amino Acids at All Relevant Absorption Edges journal August 2005
Photochemical Functionalization of Hydrogen-Terminated Diamond Surfaces:  A Structural and Mechanistic Study journal October 2005
Photochemical Grafting of Alkenes onto Carbon Surfaces: Identifying the Roles of Electrons and Holes journal February 2010
Molecular Conformation in Oligo(ethylene glycol)-Terminated Self-Assembled Monolayers on Gold and Silver Surfaces Determines Their Ability To Resist Protein Adsorption journal January 1998
Photochemical Functionalization of Diamond Films journal February 2002
DNA Micropatterning on Polycrystalline Diamond via One-Step Direct Amination journal March 2006
Proper Surface Termination for Luminescent Near-Surface NV Centers in Diamond journal July 2014
Nanoscale magnetic sensing with an individual electronic spin in diamond journal October 2008
High-resolution magnetic resonance spectroscopy using a solid-state spin sensor journal March 2018
High-resolution correlation spectroscopy of 13C spins near a nitrogen-vacancy centre in diamond journal April 2013
Subnanometre resolution in three-dimensional magnetic resonance imaging of individual dark spins journal March 2014
Atomic-scale imaging of a 27-nuclear-spin cluster using a quantum sensor journal December 2019
Quantum diamond spectrometer for nanoscale NMR and ESR spectroscopy journal August 2019
Radical fluorination reactions by thermal and photoinduced methods journal January 2017
Direct radical functionalization methods to access substituted adamantanes and diamondoids journal January 2022
XPS study of ruthenium tris-bipyridine electrografted from diazonium salt derivative on microcrystalline boron doped diamond journal January 2009
Surface properties of hydrogenated nanodiamonds: a chemical investigation journal January 2011
Single-molecule optical spectroscopy journal January 2014
Depletion of nitrogen‐vacancy color centers in diamond via hydrogen passivation journal February 2012
Hydrogen termination of CVD diamond films by high-temperature annealing at atmospheric pressure journal June 2013
Increased negatively charged nitrogen-vacancy centers in fluorinated diamond journal July 2013
Surface NMR using quantum sensors in diamond journal January 2022
Biocompatible surface functionalization architecture for a diamond quantum sensor journal February 2022
Electronic properties of CVD diamond journal February 2003
Probing Spin Dynamics on Diamond Surfaces Using a Single Quantum Sensor journal December 2022
Chemical control of the charge state of nitrogen-vacancy centers in diamond journal February 2011
NMR technique for determining the depth of shallow nitrogen-vacancy centers in diamond journal January 2016
Neutral Silicon Vacancy Centers in Undoped Diamond via Surface Control journal April 2023
Charge state dynamics and optically detected electron spin resonance contrast of shallow nitrogen-vacancy centers in diamond journal August 2020
Universal Dynamical Decoupling of a Single Solid-State Spin from a Spin Bath journal September 2010
Fluorination of Diamond Surfaces by Irradiation of Perfluorinated Alkyl Iodides journal January 1996
Nuclear magnetic resonance detection and spectroscopy of single proteins using quantum logic journal February 2016
Quantum sensing with arbitrary frequency resolution journal May 2017
Nanoscale nuclear magnetic resonance with chemical resolution journal June 2017
Nanoscale covariance magnetometry with diamond quantum sensors journal December 2022
Surface functionalization and biological applications of CVD diamond journal June 2014