Berlin 2018 – wissenschaftliches Programm

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HL: Fachverband Halbleiterphysik

HL 51: 2D Materials: Session III (joint session DS/CPP/HL)

HL 51.8: 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 Bratschitsch11Institute 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).

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