Abstract
MoS2-PANI hybrid structure were synthesized by insitu polymerization of hydrothermally synthesized MoS2 nanosheets with PANI for its application in photodetectors. Field-Emission Scanning Electron Microscopy (FESEM), High-Resolution Transmission Electron Microscopy (HRTEM), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and UV–vis spectroscopy delete were performed to characterize the synthesized sample. The optical sensor of MoS2-PANI hybrid structure were fabricated and altogether studied using laser excitation wavelengths (λex): 635 nm (red), 785 nm (infra-red) and 1064 nm (near infra-red). The evaluated value of photoresponsivity of hybrid structure is quite high compared to the previously reported MoS2 nanosheets based optical sensor. At 785 nm, maximum photoresponsivity of 25 A/W is observed at fixed power density of 1.4 mW/mm2. The photoresponsive characteristics of MoS2-PANI hybrid structure were examined as a function of optical power density.
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