Fingerprinting Defects in Hexagonal Boron Nitride via Multi-Phonon Excitation

authored by: Pablo Tieben, Andreas W. Schell
Abstract: Single photon emitters in hexagonal boron nitride (hBN) have gathered a lot of attention due to their favorable emission properties and the manifold of possible applications. Despite extensive scientific effort, the exact atomic origin of these emitters has remained unknown thus far. Recently, several studies have tied the emission in the yellow spectral region to carbon-related defects, but the exact atomic structure of the defects remains elusive. In this study, photoluminescence emission and excitation spectroscopy is performed on a large number of emitters within this region. By comparing the experimental data with theoretical predictions, the origin of yellow single photon emission in hexagonal boron nitride is determined. Knowledge of this atomic structure and its optical properties is crucial for the reliable implementation of these emitters in quantum technologies.
Organisation(s): Institute of Solid State Physics
QuantumFrontiers
External Organisation(s): National Metrology Institute of Germany (PTB)
Johannes Kepler University of Linz (JKU)
Type: Article
Journal: Advanced optical materials
ISSN: 2195-1071
Publication date: 09.04.2024
Publication status: E-pub ahead of print
Peer reviewed: Yes
ASJC Scopus subject areas: Electronic, Optical and Magnetic Materials, Atomic and Molecular Physics, and Optics
Electronic version(s): https://doi.org/10.48550/arXiv.2308.09018 (Access: Open)
https://doi.org/10.1002/adom.202302700 (Access: Open)

BibTeX

@article{6a369012dbc04de1a4ef9f16808785a4,
title = "Fingerprinting Defects in Hexagonal Boron Nitride via Multi-Phonon Excitation",
abstract = "Single photon emitters in hexagonal boron nitride (hBN) have gathered a lot of attention due to their favorable emission properties and the manifold of possible applications. Despite extensive scientific effort, the exact atomic origin of these emitters has remained unknown thus far. Recently, several studies have tied the emission in the yellow spectral region to carbon-related defects, but the exact atomic structure of the defects remains elusive. In this study, photoluminescence emission and excitation spectroscopy is performed on a large number of emitters within this region. By comparing the experimental data with theoretical predictions, the origin of yellow single photon emission in hexagonal boron nitride is determined. Knowledge of this atomic structure and its optical properties is crucial for the reliable implementation of these emitters in quantum technologies.",
keywords = "carbon defect, hexagonal boron nitride, quantum technologies, single photons, solid-state emitter",
author = "Pablo Tieben and Schell, {Andreas W.}",
note = "Funding Information: This work was funded by Project Nos. EMPIR 20FUN05 SEQUME and EMPIR 20IND05 QADeT. These projects have received funding from the EMPIR programme co\u2010financed by the Participating States and from the European Union's 2020 research and innovation programme. This work was also funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy within the Cluster of Excellence QuantumFrontiers (EXC 2123, Project No. 390837967) and within the Cluster of Excellence PhoenixD (EXC 2122, Project No. 390833453). ",
year = "2024",
month = apr,
day = "9",
doi = "10.48550/arXiv.2308.09018",
language = "English",
journal = "Advanced optical materials",
issn = "2195-1071",
publisher = "John Wiley and Sons Inc.",
}