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SKM 2023 – scientific programme

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DS: Fachverband Dünne Schichten

DS 12: Poster

DS 12.23: Poster

Wednesday, March 29, 2023, 17:00–19:00, P3

Towards engineering of tailored 2D single photon emitters (SPE) by encapsulating single dye molecules into few layer hexagonal boron nitride (hBN) — •Nils le Coutre, Tim Völzer, Paul Weinbrenner, Lisa Böhme, Franziska Fennel, Tobias Korn, Stefan Lochbrunner, and Friedemann Reinhard — University of Rostock, Rostock, Germany

We hypothesize that encapsulating dye molecules into multilayer hBN flakes overcomes photobleaching, for example by improved thermal conduction and airtight sealing. This would tackle one of the biggest barriers to the application of fluorescent dyes in various methods like optical nearfield microscopy or quantum sensing. I will present work to deposit dyes on exfoliated multilayer hBN flakes by different methods of physical vapor deposition (PVD) and liquid deposition, as well as initial studies on photostability by confocal microscopy. The large variety of available dye molecules will provide a rich toolbox for engineering of 2D SPEs, with greater flexibility than the limited set of intrinsic defects in 2D materials and bulk crystals.

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