Nanoscale Positioning of Single-Photon Emitters in Atomically Thin WSe2.

Kern, Johannes; Niehues, Iris; Tonndorf, Philipp; Schmidt, Robert; Wigger, Daniel; Schneider, Robert; Stiehm, Torsten; Michaelis de Vasconcellos, Steffen et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

Single-photon emitters in monolayer WSe2 are created at the nanoscale gap between two single-crystalline gold nanorods. The atomically thin semiconductor conforms to the metal nanostructure and is bent at the position of the gap. The induced strain leads to the formation of a localized potential well inside the gap. Single-photon emitters are localized there with a precision better than 140 nm.