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Identification of excitons, trions and biexcitons in single-layer WS2

URN to cite this document:
urn:nbn:de:bvb:355-epub-347238
DOI to cite this document:
10.5283/epub.34723
Plechinger, Gerd ; Nagler, Philipp ; Kraus, Julia ; Paradiso, Nicola ; Strunk, Christoph ; Schüller, Christian ; Korn, Tobias
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Date of publication of this fulltext: 18 Oct 2016 11:36


Abstract

Single-layer WS2 is a direct-gap semiconductor showing strong excitonic photoluminescence features in the visible spectral range. Here, we present temperature-dependent photoluminescence measurements on mechanically exfoliated single-layer WS2, revealing the existence of neutral and charged excitons at low temperatures as well as at room temperature. By applying a gate voltage, we can ...

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