Low-dimensional solid-state single-photon emitters

doi:10.1515/nanoph-2024-0569

Low-dimensional solid-state single-photon emitters

2025-01-08

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DOI：10.1515/nanoph-2024-0569

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Solid-state single-photon emitters (SPEs) are attracting significant attention as fundamental components in quantum computing, communication, and sensing. Low-dimensional materials-based SPEs (LD-SPEs) have drawn particular interest due to their high photon extraction efficiency, ease of integration with photonic circuits, and strong coupling with external fields. The accessible surfaces of LD materials allow for deterministic control over quantum light emission, while enhanced quantum confinement and light-matter interactions improve photon emissive properties. This perspective examines recent progress in LD-SPEs across four key materials: zero-dimensional (0D) semiconductor quantum dots, one-dimensional (1D) nanotubes, two-dimensional (2D) materials, including hexagonal boron nitride (hBN) and transition metal dichalcogenides (TMDCs). We explore their structural and photophysical properties, along with techniques such as spectral tuning and cavity coupling, which enhance SPE performance. Finally, we address future challenges and suggest strategies for optimizing LD-SPEs for practical quantum applications.

Keywords:

low-dimensional materials

single photon sources

quantum dots

single-walled carbon nanotubes

transition metal dichalcogenides

hexagonal boron nitride

Low-dimensional solid-state single-photon emitters

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