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Paramagnetic substitutional carbon (C$_\text{B}$, C$_\text{N}$) defects in hexagonal boron nitride (hBN) are discussed as candidates for quantum bits. Their identification and suitability are approached by means of photoluminescence (PL),…

Quantum Physics · Physics 2021-08-11 Philipp Auburger , Adam Gali

Applications of quantum science to computing, cryptography and imaging are on their way to becoming key next generation technologies. Owing to the high-speed transmission and exceptional noise properties of photons, quantum photonic…

The unique physical, mechanical, chemical, optical, and electronic properties of hexagonal boron nitride (hBN) make it a promising two-dimensional material for electronic, optoelectronic, nanophotonic, and quantum devices. Here we report on…

Materials Science · Physics 2023-06-26 E. Janzen , H. Schutte , J. Plo , A. Rousseau , T. Michel , W. Desrat , P. Valvin , V. Jacques , G. Cassabois , B. Gil , J. H. Edgar

Two dimensional van der Waals crystals and their heterostructures provide an exciting alternative to bulk wide bandgap semiconductors as hosts of single photon emitters. Amongst different layered materials, bright and robust defect-based…

Materials Science · Physics 2020-07-01 Pratibha Dev

Atomic vacancy defects in single unit cell thick hexagonal boron nitride are of significant interest because of their photophysical properties, including single-photon emission, and promising applications in quantum communication and…

Sources of pure and indistinguishable single-photons are critical for near-future optical quantum technologies. Recently, color centers hosted by two-dimensional hexagonal boron nitride (hBN) have emerged as a promising platform for high…

Quantum Physics · Physics 2019-08-22 Tobias Vogl , Ruvi Lecamwasam , Ben C. Buchler , Yuerui Lu , Ping Koy Lam

Evaluation of the defect levels in low-dimensional materials is an important aspect of quantum science. In this article, we report a facile synthesis method of hexagonal boron nitride (h-BN) and evaluate the defects and their light emission…

Mesoscale and Nanoscale Physics · Physics 2022-03-30 Ashly Sunny , Aniket Balapure , Ramakrishnan Ganesan , R. Thamankar

We demonstrate the fabrication of individual nanopores in hexagonal boron nitride (hBN) with atomically precise control of the pore size. Previous methods of pore production in other 2D materials create pores of irregular geometry with…

Materials Science · Physics 2017-02-07 S. Matt Gilbert , Gabriel Dunn , Thang Pham , Brian Shevitski , Edgar Dimitrov , Shaul Aloni , Alex Zettl

Hexagonal boron nitride (h-BN), one of the hallmark van der Waals (vdW) layered crystals with an ensemble of attractive physical properties, is playing increasingly important roles in exploring two-dimensional (2D) electronics, photonics,…

Mesoscale and Nanoscale Physics · Physics 2020-01-07 Yanan Wang , Jaesung Lee , Xu-Qian Zheng , Yong Xie , Philip X. -L. Feng

Quantum emitters in hexagonal boron nitride (hBN) have emerged as a promising solid-state platform for quantum technology applications. However, a persistent challenge in the field is the unclear origin of many observed emission lines,…

Single photon emitters in hexagonal boron nitride are based on fluorescent point-like defects. These defects typically have exceptional photophysical properties and therefore been the focus of extensive research due to their potential to…

Coherent quantum emitters are a central resource for advanced quantum technologies. Hexagonal boron nitride (hBN) hosts a range of quantum emitters that can be engineered using techniques such as high-temperature annealing, optical doping,…

Quantum emitters in hexagonal Boron Nitride (hBN) were recently reported to hol a homogeneous linewidth according to the Fourier-Transform limit up to room temperature. This unusual observation was traced back to decoupling from in-plane…

Mesoscale and Nanoscale Physics · Physics 2020-10-02 Michael Hoese , Prithvi Reddy , Andreas Dietrich , Michael K. Koch , Konstantin G. Fehler , Marcus W. Doherty , Alexander Kubanek

Creation of defect with predetermined optical, chemical and other characteristics is a powerful tool to enhance the functionalities of materials. Herewith, we utilize density functional theory to understand the microscopic mechanisms of…

Materials Science · Physics 2022-08-31 P. Huang , M. Grzeszczyk , K. Vaklinova , K. Watanabe , T. Taniguchi , K. S. Novoselov , M. Koperski

Hexagonal boron nitride (h-BN) is a layered two-dimensional material with properties that make it promising as a dielectric in various applications. We report the growth of h-BN films on Ni foils from elemental B and N using molecular beam…

Materials Science · Physics 2015-05-29 S. Nakhaie , J. M. Wofford , T. Schumann , U. Jahn , M. Ramsteiner , M. Hanke , J. M. J. Lopes , H. Riechert

Efficient nanophotonic devices are essential for applications in quantum networking, optical information processing, sensing, and nonlinear optics. Extensive research efforts have focused on integrating two-dimensional (2D) materials into…

Hexagonal boron nitride (h-BN), a prevalent insulating crystal for dielectric and encapsulation layers in two-dimensional (2D) nanoelectronics and a structural material in 2D nanoelectromechanical systems (NEMS), has also rapidly emerged as…

Optics · Physics 2021-06-08 Yanan Wang , Jaesung Lee , Jesse Berezovsky , Philip X. -L. Feng

Charged defects in 2D materials have emerging applications in quantum technologies such as quantum emitters and quantum computation. Advancement of these technologies requires rational design of ideal defect centers, demanding reliable…

Materials Science · Physics 2017-12-13 Feng Wu , Galatas Andrew , Ravishankar Sundararaman , Dario Rocca , Yuan Ping

Hexagonal boron nitride sheets have been noted especially for their enhanced properties as substrates for sp2 carbon-based nanodevices. To evaluate whether such enhanced properties would remain under various realistic conditions, we…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 Seoung-Hun Kang , Gunn Kim , Young-Kyun Kwon

Solid-state single-photon emitters (SPEs) such as the bright, stable, room-temperature defects within hexagonal boron nitride (hBN) are of increasing interest for quantum information science applications. To date, the atomic and electronic…