Fast and Low-Cost Synthesis of MoS2 Nanostructures on Paper Substrates for Near-Infrared Photodetectors

Recent advances in the production and development of two-dimensional transition metal dichalcogenides (2D TMDs) allow applications these materials, with a structure similar to that graphene, series devices as promising technologies for optoelectronic applications. In this work, molybdenum disulfide (MoS2) nanostructures were grown directly on paper substrates through microwave-assisted hydrothermal synthesis. The synthesized samples subjected morphological, structural, optical analysis, using techniques such scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman. variation synthesis parameters, temperature time, allowed manipulation during growth process, alteration metallic (1T) semiconductor (2H) phases. By method, MoS2 substrates. used active layer, produce low-cost near-infrared photodetectors. set results indicates interdigital photodetector best characteristics (responsivity 290 mA/W, detectivity 1.8 × 109 Jones external quantum efficiency 37%) was obtained photoactive nanosheets at 200 °C 120 min.