Research Progress of Single-Photon Emitters Based on Two-Dimensional Materials.

Chengzhi Zhang, Zehuizi Gong,Dawei He, Yige Yan, Songze Li, Kun Zhao, Jiarong Wang,Yongsheng Wang,Xiaoxian Zhang

Nanomaterials (Basel, Switzerland)(2024)

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摘要
From quantum communications to quantum computing, single-photon emitters (SPEs) are essential components of numerous quantum technologies. Two-dimensional (2D) materials have especially been found to be highly attractive for the research into nanoscale light-matter interactions. In particular, localized photonic states at their surfaces have attracted great attention due to their enormous potential applications in quantum optics. Recently, SPEs have been achieved in various 2D materials, while the challenges still remain. This paper reviews the recent research progress on these SPEs based on various 2D materials, such as transition metal dichalcogenides (TMDs), hexagonal boron nitride (hBN), and twisted-angle 2D materials. Additionally, we summarized the strategies to create, position, enhance, and tune the emission wavelength of these emitters by introducing external fields into these 2D system. For example, pronounced enhancement of the SPEs' properties can be achieved by coupling with external fields, such as the plasmonic field, and by locating in optical microcavities. Finally, this paper also discusses current challenges and offers perspectives that could further stimulate scientific research in this field. These emitters, due to their unique physical properties and integration potential, are highly appealing for applications in quantum information and communication, as well as other physical and technological fields.
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关键词
single-photon emitter,2D materials,TMDs,Purcell enhancement,quantum emitters
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