Fig. 5: XPS analysis of the exfoliation procedure-dependent MoS2 thin films.
From: Exfoliation procedure-dependent optical properties of solution deposited MoS2 films
a The S/Mo ratios from the Mo 3p and S 2p fitted peaks, where stoichiometric and the bulk CVT MoS2 are noted with S/Mo = 2 (horizontal dashed line) and 2.54, respectively. b The Mo6+/Mo atomic percentage from Mo 3d and S 2 s fitted peaks (solid outline) and from the Mo 3p and S 2p fitted peaks (dashed outline).
