Fig. 4: Electronically coupled 2DPI-MoS2 vdWH.
From: On-water surface synthesis of electronically coupled 2D polyimide-MoS2 van der Waals heterostructure
a An optical microscope image of the 2DPI-MoS2 vdWH film on a SiO2/Si substrate. b FE-SEM images show uniform coverage of the 2DPI-MoS2 vdWH film. c Elemental mapping of Mo and S on the 2DPI-MoS2 vdWH film. d–f TEM and SAED images of the 2DPI-MoS2 vdWH film. g, h Raman spectra of 2DPI-MoS2 vdWH and the pristine MoS2 film. h PL spectra of 2DPI-MoS2 vdWH and the pristine MoS2 film. i Overlapping structure of 2DPI-MoS2 vdWH.
