▎ 摘　　要

In this study, high order crystalline tungsten disulfide (WS2) nanoparticles/graphene sheets (WS2/Gs) were prepared via facile hydrothermal technique. Hexagonal crystalline structure of WS(2)with individual spherical shaped nanoparticles within the average sizes of 35-40 nm were found through XRD, SEM and TEM analysis. Further the structure of the WS2/Gs was found with the presence of D and G bands along with WS(2)based Raman modes in the Raman spectra analysis. The incorporated WS(2)into Gs will significantly increasing the absorption property, tuning the band gap (2.87-2.21 eV) and rapid electron charge transfer process, which is identified through UV-DRS and PL analysis. The fabricated dye-sensitized solar cells device with WS2/graphene photo-electrode showed an open circuit voltage (J(sc)) of 0.79 mV, short circuit current (V-oc) of 18.6 mA cm(-2), fill factor of 0.66, and power conversion efficiency of 9.6%. This could be due to the high surface area (98.45) and mesoporous nature (10.25 nm) of the WS2/Gs composite hybrid photo-anodes. The detailed mechanism of WS(2)improved by Gs is also discussed in detail. The strategy could provide new ideas for obtaining novel hybrid photo-anodes with excellent photovoltaic performance.