Abstract
Layered transition metal dichalcogenides (TMDCs) have drawn immense attraction owing to their unique physical, chemical, structural, and tunable electronic characteristics. Among the TMDCs, layered molybdenum disulfide (MoS2) exhibits wide application perspectives due to their high stability, cost effectiveness, simple processability, and non-toxicity. Herein, the structural and spectroscopic behavior of MoS2 synthesized via a hydrothermal method have been reported. The X-ray diffraction pattern exhibits sharp peaks located at 2θ–14.86°, 35.49°, and 57.65°, which corresponds to reflection from the (002), (100), and (110) plane, respectively, representing the crystalline characteristics of MoS2. Also, the interplanar spacing and average crystallite size are estimated to be ~5.95 Å and 21.51 nm, respectively. The UV–visible absorption spectrum exhibits two characteristic peaks positioned at ~272 and 325 nm, whereas the PL spectrum shows the presence of a sharp emission peak at ~434 nm. Furthermore, the optical band gap energies are calculated to be ~1.55 and 2.91 eV, from Tauc’s plot. FESEM image reveals the rod-like shape of the material.
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Acknowledgements
The authors acknowledge Central Instrumentation Facility, NIT, Silchar, SMaRT Laboratory, Department of Physics, NIT, Silchar, and SAIF, S. N. Bose National Centre for Basic Sciences for providing material characterization.
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Das, N.S., Gogoi, K.K., Chowdhury, A., Roy, A. (2022). Structural and Optical Analysis of Hydrothermally Synthesized Molybdenum Disulfide Nanostructures. In: Das, B., Patgiri, R., Bandyopadhyay, S., Balas, V.E. (eds) Modeling, Simulation and Optimization. Smart Innovation, Systems and Technologies, vol 292. Springer, Singapore. https://doi.org/10.1007/978-981-19-0836-1_12
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