Self-powered photodetectors based on InxMo1-xS2 crystals

Transition metal dichalcogenides (TMDCs) have attracted global interest in recent years due to their optoelectronic characteristics and tunable bandgap energies. Due to their potential use in photovoltaic devices , photodetectors , and field effect transistor (FET) recording systems, single crystalline semiconductors of TMDC family have attracted a lot of attention. In the present article, the direct vapour transport technique was used to synthesis the In x Mo 1-x S 2 (x = 0, 0.05, and 0.1) crystals. The purity and distribution of all the elements were investigated by EDAX mapping. The power X-ray diffraction technique examine the grown crystals have hexagonal lattice structure. The structure of all the crystals was investigated by scanning electron microscopy (SEM). The in-plane E 2g and outer-plane A 1g vibration modes were studied through Raman spectra . Photodetectors based on In x Mo 1-x S 2 (x = 0, 0.05, and 0.1) crystals show the self-powered photoresponse under white light source at 100 mW/cm 2 power intensity.