Scalable Single-crystalline Metal Array for Tunable Emission of Van der Waals Materials

Van der Waals (vdW) materials, including h-BN and transition metal dichalcogenide (TMD), are ideal platform to explore quantum optics, Morie physics and many body effects.[1-3] Diverse applications and fundamental issues of the vdW are significant to the emission behavior and performances. Tunable emission of the vdW materials remains a long-lasting challenging issue.[4] Here, we achieved the self-assembly of the single-crystalline gold nanostructures to realize a scalable array for tunable and enhanced emission in the vdW. Synthesis, characterizations, and manipulation of the sub-100 nm single-crystalline nanostructures are presented. The scalable array is integrated with the representative vdW materials to demonstrate tunable emission and study the plasmonic effects. This study indicates that the deterministic nano-metal array is potential for quantum optics and information system. 

 

1.         Aharonovich, I., D. Englund, and M. Toth, Solid-state single-photon emitters. Nature Photonics, 2016. 10(10): p. 631-641.

2.         Behura, S.K., et al., Moiré physics in twisted van der Waals heterostructures of 2D materials. Emergent Materials, 2021. 4(4): p. 813-826.

3.         Sang, Y., et al., Tuning of Two-Dimensional Plasmon–Exciton Coupling in Full Parameter Space: A Polaritonic Non-Hermitian System. Nano Letters, 2021. 21(6): p. 2596-2602.

4.         Mendelson, N., et al., Engineering and Tuning of Quantum Emitters in Few-Layer Hexagonal Boron Nitride. ACS Nano, 2019. 13(3): p. 3132-3140.