Figure 5
From: Fabrication of WS2/GaN p-n Junction by Wafer-Scale WS2 Thin Film Transfer

I-V curves of p-type WS2 film on n-type GaN p-n junction for: top-transferred device (blue solid circles); back-transferred device (red squares); and direct growth WS2/GaN device (brown triangle).
The inset shows the I-V plotted in semi-log scale.