The present study examines photo-current characteristics of 2D layered molybdenum disulfide (MoS2) incorporated titanium dioxide (TiO2) nanoparticle films at different illumination conditions established using while light (AM1.5), blue (406 nm), and green (525 nm) lasers. Photo-current values, measured from a two-terminal device configuration fabricated using TiO2 nanoparticle films with different weight % of MoS2, were observed to be sensitive to the quantity of MoS2 in the bulk TiO2. It is observed that incorporation of 30 wt% of MoS2 in TiO2 enhanced photo-current up to 48.3% compared to that of pristine TiO2 nanoparticle film under AM1.5 illumination. Blue and green laser-based measurements show that the photo-current is highly sensitive to the weight fraction of MoS2 in TiO2 and incident energy used to generate excitons. The variation observed in the measured photo-current is directly attributed to the optical responsivity of MoS2 to the incoming photons
G. Gopakumar, Ashok, A., Shantikumar V Nair, and Dr. Mariyappan Shanmugam, “Atomically Thin 2D Layered MoS2-enabled Photo-Current Characteristics in TiO2 Nanoparticle Films”, Applied Nanoscience (In Press), 2019.