Journal
ACS PHOTONICS
Volume 6, Issue 8, Pages 1832-1839Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsphotonics.9b00311
Keywords
tungsten disulfide monolayer; metal organic chemical vapor deposition; light-emitting device; 2D LED; 2D semiconductor; electroluminescence; luminance
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Funding
- European Regional Development Fund ERDF 2014-2020 of the European Union [EFRE-0800154]
- Ministry of Economic Affairs, Innovation, Digitalization and Energy of the State of North Rhine-Westphalia
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Transition metal dichalcogenides (TMDCs) represent a novel and sustainable material basis for ultrathin optoelectronic devices. Although various approaches toward light-emitting devices, e.g., based on exfoliated or chemical vapor deposited (CVD) TMDC monolayers, have been reported, they all suffer from limited scalability and reproducibility required for industrial fabrication. Here, we demonstrate a light-emitting device in a scalable approach by embedding metal-organic (MO-)CVD WS2 monolayers into a vertical p-i-n device architecture using organic and inorganic injection layers. Red electroluminescence is emitted from an active area of 6 mm(2) starting already at a driving voltage of about 2.5 V.
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