Fig. 4From: A Facile Way to Fabricate High-Performance Solution-Processed n-MoS2/p-MoS2 Bilayer Photodetectors a Mo 3D region and of X-ray photoelectron spectroscopy (XPS) profiles of MoS2 nanosheets with or without plasma treatment. b The ultraviolet photoelectron spectroscopy (UPS) spectra of MoS2 nanosheets with or without plasma treatmentBack to article page