Gold-mediated exfoliation of ultralarge optoelectronically perfect monolayers with lateral dimensions up to ≈500 μm is reported. Electrical, optical, and X-ray photo-electron spectroscopy characterization show that the quality of the gold-exfoliated flakes is similar to that of tape-exfoliated flakes. Large-area flakes allow manufacturing of large-area mono-layer transition metal dichalcogenide electronics.
Keywords: MoS2; TMDC; gold exfoliation; large-area monolayers; layered materials.
© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.