Fig. 3
From: Machine-learning-assisted analysis of transition metal dichalcogenide thin-film growth
PCA results; a Six PCs of the RHEED video for the 3UC-thick ReSe2 thin film and b the corresponding score plots. Component 1 (PC1) shows the diffraction signal of graphene, while component 2 (PC2) contains the signals of both the graphene and ReSe2 layers. Component 3–6 (PC3-6) show the signal of only the 2D growth of ReSe2 layer. c–e The intensity plots of the (c) original RHEED video and d, e modified RHEED video. Blue and orange lines denote the (0,0) and (2,0) diffraction streaks of the ReSe2 thin film (shown in the inset), respectively