Bright Electroluminescence from Back-Gated WSe2 P-N Junctions Using Pulsed Injection

Kevin Han; Seth A. Fortuna; Matin Amani; Sujay B. Desai; Der‐Hsien Lien; Geun Ho Ahn; Eli Yablonovitch; Ali Javey; Ming C. Wu

doi:10.1364/cleo_si.2018.stu4n.6

Abstract

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We demonstrate bright electroluminescence in WSe 2 monolayers using pulsed injection, without the use of split gates, chemical doping, or heterostructures. Electroluminescence quantum efficiency approaches that of photoluminescence, indicating efficient exciton formation with injected carriers.

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Bright Electroluminescence from Back-Gated WSe2 P-N Junctions Using Pulsed Injection

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