Berlin 2018 – wissenschaftliches Programm
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DS: Fachverband Dünne Schichten
DS 37: 2D Materials: Session III (joint session DS/CPP/HL)
DS 37.8: Vortrag
Freitag, 16. März 2018, 11:45–12:00, H 2032
Deterministic Positioning of Single-Photon Emitters in Monolayer WSe2 on the Nanoscale — •Johannes Kern1, Iris Niehues1, Philipp Tonndorf1, Robert Schmidt1, Daniel Wigger2, Robert Schneider1, Torsten Stiehm1, Steffen Michaelis de Vasconcellos1, Doris E. Reiter2, Tilman Kuhn2, and Rudolf Bratschitsch1 — 1Institute of Physics and Center for Nanotechnology, University of Münster, Germany — 2Institute of Solid State Theory, University of Münster, Germany
Single-photon emitters are an important building block for photonic quantum technology. Here, we deterministically position single-photon emitters in monolayer WSe2 on the nanoscale [1]. The atomically thin semiconductor is placed on top of a gapped single-crystalline gold rod which results in a folding of the monolayer around the metal nano-structure. At the gap position, local strain is induced in the atomically thin semiconductor. Excitons localize there and radiatively decay via single-photon emission.
[1] J. Kern et al., "Nanoscale positioning of single-photon emitters in atomically thin WSe2", Adv. Mater. 28, 7101-7105, (2016).