2019
DOI: 10.1021/acs.nanolett.9b00357
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Deterministic Quantum Emitter Formation in Hexagonal Boron Nitride via Controlled Edge Creation

Abstract: Quantum emitters (QEs) in 2D hexagonal boron nitride (hBN) are extremely bright and are stable at high temperature and under harsh chemical conditions. Because they reside within an atomically thin 2D material, these QEs have a unique potential to couple strongly to hybrid optoelectromechanical and quantum devices. However, this potential for coupling has been underexplored because of challenges in nanofabrication and patterning of hBN QEs. Motivated by recent studies showing that QEs in hBN tend to form at ed… Show more

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Cited by 116 publications
(146 citation statements)
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“…The excited state energy of these emitters has also been extensively studied experimentally [10,48] and theoretically from first-principles calculation [49][50][51][52]. A number of different defects in hBN were created in hBN using techniques, including electron/ ion irradiation [46,53,54], plasma treatment [55], laser ablation [56], controlled edge created via focused ion beam (FIB) milling [57], and strain engineering [58]. From first principles, it was inferred that the C B V N defect (substitution of carbon in place of a boron atom and the opposite nitrogen atom is removed) is a potential emission source with a Huang-Rhys (HR) factor of 1.66, which is in good agreement with the experimental HR factor.…”
Section: Quantum Light From 2d Semiconductors and Insulatorsmentioning
confidence: 99%
“…The excited state energy of these emitters has also been extensively studied experimentally [10,48] and theoretically from first-principles calculation [49][50][51][52]. A number of different defects in hBN were created in hBN using techniques, including electron/ ion irradiation [46,53,54], plasma treatment [55], laser ablation [56], controlled edge created via focused ion beam (FIB) milling [57], and strain engineering [58]. From first principles, it was inferred that the C B V N defect (substitution of carbon in place of a boron atom and the opposite nitrogen atom is removed) is a potential emission source with a Huang-Rhys (HR) factor of 1.66, which is in good agreement with the experimental HR factor.…”
Section: Quantum Light From 2d Semiconductors and Insulatorsmentioning
confidence: 99%
“…Despite the considerable efforts that have been directed at the experimental exploration of these SPEs so far, a thorough theoretical understanding of the properties of the emitters that have been experimentally observed remains to be developed. Especially, the fact that many emitters appear at the edges of h-BN flakes and wrinkles on them 31,32 motivates the investigation on the effect of strain on these emitters. Furthermore, the quantum emitters have shown magnetic properties in some experiments [33][34][35][36] , while in other experiments non-magnetic behavior was found 21 .…”
Section: Introductionmentioning
confidence: 99%
“…[2] Recently, there have been increasing efforts to create quantum emitting sites at defined locations in 2D materials, such as transition metal dichalcogenides [3] and hexagonal boron nitride. [4] However, these quantum emitting sites suffer from one or more of the following limitations, including low single photon purity, cryogenic operation, and ambiguous physical/ chemical structures, making their optical properties difficult to control. [2d,3d,5] www.advmat.de www.advancedsciencenews.com These findings pave the way for patterning of QEs and other functionalities at the molecular level.…”
Section: Doi: 101002/adma201906517mentioning
confidence: 99%
“…However, many QEs are found as defects in crystal lattices, whose formation is inherently random and difficult to control 2. Recently, there have been increasing efforts to create quantum emitting sites at defined locations in 2D materials, such as transition metal dichalcogenides3 and hexagonal boron nitride 4. However, these quantum emitting sites suffer from one or more of the following limitations, including low single photon purity, cryogenic operation, and ambiguous physical/chemical structures, making their optical properties difficult to control 2d,3d,5…”
mentioning
confidence: 99%