Figure 4
From: Influence of MoO3(110) Crystalline Plane on Its Self-Charging Photoelectrochemical Properties

(a) UV-Vis absorption spectra based on Kubelka-Munk function vs. the photon energy and; (b) Photoluminescence spectra of the as-prepared α-MoO3 thin films over the wavelength range 360–420 nm.