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Recent Advances in Diamond Science and Technology

MetadataDetails
Publication Date2025-03-01
Journalphysica status solidi (a)
AuthorsPobedinskas Paulius
AnalysisFull AI Review Included

This Guest Editorial summarizes a Topical Section of Physica Status Solidi (a), highlighting recent breakthroughs in diamond science derived from the 28th Surface and Bulk Defects in Diamond (SBDD) workshop.

  • Scope: The research spans fundamental defect studies, quantum sensing, device fabrication, and advanced electrochemical applications of diamond.
  • Core Value Proposition: Leveraging diamond’s unique properties for high-impact, real-world applications, particularly in quantum information and biomedicine.
  • Quantum Sensing Advancement: Introduction of a combined confocal-AFM setup achieving sub-diffractional spatial resolution, critical for high-fidelity quantum sensing.
  • Nanoscale Metrology: Development of self-sensing Atomic Force Microscopy (AFM) cantilevers using boron-doped nanocrystalline diamond (NCD) coatings for enhanced nanoscale measurements.
  • Thermal Sensing: Demonstration of localized temperature-sensing using cathodoluminescence spectroscopy applied to nitrogen-doped nanodiamonds (NDs).
  • Heterostructure Integration: Exploration of graphene on diamond systems for next-generation electronic devices, demonstrating the intersection of diamond with other advanced materials.
  • Future Focus: Emphasis on the need for continuous development of advanced characterization techniques to optimize diamond materials for technological innovation.

The following parameters and material systems were highlighted as key technical achievements within the reviewed research papers:

ParameterValueUnitContext
Workshop Origin28th SBDDN/ASource of the featured research papers
Publication Year2025N/AYear of the Topical Section release
Spatial ResolutionSub-diffractionalN/AAchieved by novel combined confocal-AFM setup
Sensing TargetTemperatureN/AMeasured using cathodoluminescence spectroscopy
Sensing Material 1Nitrogen-dopedN/ANanodiamonds (NDs) used for thermometry
Sensing Material 2Boron-dopedN/ANanocrystalline diamond (NCD) coatings
Device ApplicationElectronic DevicesN/AIntegration of graphene on diamond substrates
Measurement ToolAFM CantileversN/AEnhanced by self-sensing NCD coatings

The research featured in this Topical Section utilizes several cutting-edge methodologies focused on material synthesis, defect engineering, and advanced characterization:

  1. Hybrid Microscopy Integration: Development and deployment of a combined confocal-AFM (Atomic Force Microscopy) setup to achieve high spatial resolution necessary for mapping quantum states (e.g., NV centers) in diamond.
  2. Controlled Doping and Coating: Fabrication of boron-doped nanocrystalline diamond (NCD) coatings specifically engineered for integration onto AFM cantilevers, enabling intrinsic self-sensing capabilities.
  3. Spectroscopic Defect Analysis: Application of cathodoluminescence spectroscopy (CL) to analyze and utilize nitrogen-doped nanodiamonds (NDs) for highly localized temperature-sensing applications.
  4. Heterostructure Fabrication: Investigation of techniques for depositing and integrating graphene layers onto diamond substrates to create stable, high-performance interfaces for electronic device fabrication.
  5. Fundamental Defect Engineering: Ongoing studies focused on understanding and controlling the mechanisms of defect creation in diamond, which is foundational for optimizing quantum emitters and device performance.
  6. Advanced Characterization: Continuous development and refinement of characterization techniques essential for better understanding and optimizing the complex properties of diamond-based materials.

The advancements in diamond science and technology detailed in this editorial have direct implications across several high-tech industries:

  • Quantum Information Technology (QIT):
    • Development of robust, high-resolution quantum sensors utilizing diamond defects (e.g., NV centers).
    • Enabling technologies for quantum computing and secure communication systems.
  • Advanced Metrology and Nanofabrication:
    • Self-sensing AFM cantilevers (using B-doped NCD) for highly accurate, stable, and rapid nanoscale surface analysis and manufacturing quality control.
    • Tools for sub-diffractional imaging and measurement in semiconductor and materials research.
  • Biomedicine and Diagnostics:
    • Localized in vivo temperature-sensing using nitrogen-doped nanodiamonds, crucial for monitoring cellular processes and therapeutic delivery.
    • Diamond-based materials for biocompatible interfaces and advanced drug delivery systems.
  • High-Power and RF Electronics:
    • Integration of graphene on diamond to create high-mobility, high-thermal conductivity electronic devices, suitable for 5G/6G infrastructure and power switching applications.
  • Electrochemical Systems:
    • Utilization of diamond’s chemical inertness and wide electrochemical window for advanced sensing, water purification, and high-performance electrode materials in energy storage.
View Original Abstract

I am pleased to present this Topical Section of Physica Status Solidi (a), highlighting recent advancements in diamond science and technology. This collection features cutting-edge research in diamond-based materials and devices, with contributions stemming from the 28th edition of the international Surface and Bulk Defects in Diamond (SBDD) workshop. The workshop brought together researchers from diverse fields to discuss the latest developments, and the papers featured in this Topical Section reflect the latest innovations of diamond research. The papers cover a wide range of topics, from fundamental studies of defect creation in diamond to innovative approaches in quantum sensing, device fabrication, and electrochemical processes. These contributions underscore the importance of diamond’s unique properties in real-world applications, particularly in the fields of quantum information and biomedicine. Novel experimental techniques are introduced, such as a combined confocal-AFM setup that enables sub-diffractional spatial resolution for quantum sensing, and a study on boron-doped nanocrystalline diamond coatings for self-sensing AFM cantilevers , which facilitate advanced nanoscale measurements. Other research papers explore temperature-sensing using cathodolumi-nescence spectroscopy of nitrogen-doped nanodiamonds and the application of graphene on diamond for electronic devices, demonstrating the growing intersection of diamond with other advanced materials for next-generation technologies. Together, these papers showcase the ongoing evolution of diamond research, highlighting its multifaceted role in both fundamental science and emerging technological innovations. As research in diamond technology progresses, so too does the need for advanced characterization techniques to better understand and optimize these materials. The 28th SBDD workshop, held in February 2024 in Hasselt, Belgium, provided a platform for delegates to exchange ideas, foster collaborations, and envision the future of diamond research. I hope that this collection of articles will continue the vibrant discussions initiated at the workshop, inspire new avenues of research, and contribute to the ongoing development of diamond-based technologies, both within this field and across related disciplines. Hasselt, February 2025.