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FRI: Friday Contributed Sessions

FRI 12: Quantum Phenomena in Solid-State Devices

FRI 12.3: Talk

Friday, September 12, 2025, 11:15–11:30, ZHG105

Single polycyclic aromatic molecular emitters embedded in a hexagonal boron nitride stack — •Tianyu Fang, Ricardo Gioia Alvarez, and Daqing Wang — Institut für Angewandte Physik, Universität Bonn, Wegelerstraße 8, 53115 Bonn, Germany

Single polycyclic aromatic hydrocarbon molecules embedded in solid-state matrices have been proven an excellent platform for narrow-linewidth single-photon emission. We extend this host-guest setting to van der Waals materials to leverage the advantages of flexible hybrid integration. By encapsulating perylene molecules between hexagonal boron nitride stacks, we observe spectrally narrow single-photon emission at cryogenic temperatures. We determine the exact emission origins through vibronic spectra assignment and resolve 0-0 zero-phonon-line linewidths down to the GHz scale.

Keywords: polycyclic aromatic hydrocarbon; hBN; single-molecule spectroscopy; fluorescence line-narrowing; spectral diffusion