Abstract
In recent years, flexible photodetectors (PD) have emerged as a significant innovation with potential applications in healthcare, security, and environmental monitoring. Two-dimensional (2D) layers of metal dichalcogenides MoS2 have gathered significant attention due to their ultrathin thickness and promising applications in the fields of flexible PD. 2H phase of MoS2 micro-flowers were synthesized by facile hydrothermal route. Raman spectra was employed to analyze the quality of grown MoS2 and confirmed with E12g and A1g Raman phonon modes. The micro-flower morphological was verified through FESEM. Subsequently, PD device was fabricated through bar coating method over a flexible polyethylene terephthalate (PET) substrate and Indium Tin oxide (ITO) was employed as an electrode. Photodetection property of the device was tested under dark and illumination. MoS2-microflower PD exhibit good photoresponsivity and detectivity of 1.5 µA/W and 105 Jones at 5 V respectively. Moreover, detector demonstrated remarkable flexibility and exceptional air stability.
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