DataVXACS Applied Nano MaterialsPaper
journal article·2023-12-08Open access

Creation of Boron Vacancies in Hexagonal Boron Nitride Exfoliated from Bulk Crystals for Quantum Sensing

Ty Zabelotsky, Sourabh Singh, Galya Haim, Rotem Malkinson, Shima Kadkhodazadeh, Ilya P. Radko, Igor Aharonovich, Hadar Steinberg, Kirstine Berg-Sørensen, Alexander Huck, Takashi Taniguchi, Kenji Watanabe, Nir Bar-Gill

ACS Applied Nano Materials· Volume 6· Issue 23
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Abstract

High Resolution Image Download MS PowerPoint Slide Boron vacancies (VB – ) in hexagonal boron -nitride (hBN) have sparked great interest in recent years due to their optical and spin properties. Since hBN can be readily integrated into devices where it interfaces a huge variety of other 2D materials, boron vacancies may serve as a precise sensor which can be deployed at very close proximity to many important materials systems. Boron vacancy defects may be produced by a number of existing methods, the use of which may depend on the final application. Any method should reproducibly generate defects with controlled density and desired pattern. To date, however, detailed studies of such methods are missing. In this paper, we study various techniques for the preparation of hBN flakes from bulk crystals and relevant postprocessing treatments, namely, focused ion beam (FIB) implantation, for creation of VB – s as a function of flake thickness and defect concentrations. We find that flake thickness plays an important role when optimizing implantation parameters, while careful sample cleaning proved important to achieve consistent results.
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Research context

NanomaterialsBiomaterials

OpenAlex topics: Graphene research and applications · Diamond and Carbon-based Materials Research · Boron and Carbon Nanomaterials Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

The Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem 91904, Israel

The Institute of Applied Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel

The Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel

School of Physics, The University of Melbourne, Parkville, Victoria 3010, Australia

DTU Nanolab, Technical University of Denmark, Fysikvej, Kongens, Lyngby, 2800, Denmark

Department of Physics, Technical University of Denmark, Kongens, Lyngby, 2800, Denmark

School of Mathematical and Physical Sciences, University of Technology Sydney, Ultimo, New South Wales 2007, Australia

ARC Centre of Excellence for Transformative Meta-Optical Systems (TMOS), Faculty of Science, University of Technology Sydney, Ultimo, New South Wales 2007, Australia

Department of Health Technology, Technical University of Denmark, Kongens, Lyngby 2800, Denmark

Center for Macroscopic Quantum States (bigQ), Department of Physics, Technical University of Denmark, 2800 Kongens, Lyngby, Denmark

International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan

Research Center for Functional Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan

Funding

Israel Science Foundation · HORIZON EUROPE European Innovation Council · Danish Agency for Science and Higher Education · Novo Nordisk Fonden · Australian Research Council · Ministry of Science and Technology, Israel · Office of Naval Research Global · University of Melbourne · Canadian Institute for Advanced Research · H2020 European Research Council

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