Fabrication control of MoS<sub>2</sub>/MoO<sub>2</sub> nanocomposite via chemical vapor deposition for optoelectronic applications - Université d'Artois
Article Dans Une Revue Materials Science and Engineering: B Année : 2022

Fabrication control of MoS2/MoO2 nanocomposite via chemical vapor deposition for optoelectronic applications

Résumé

We report on the fabrication and control of MoS2/MoO2 nanocomposites exhibiting various optoelectronic properties. We demonstrate the growth of various compositions, shapes and crystalline structures by chemical vapor deposition (CVD). Microplates 1 to 30 µm to highly crystalline nanowires ∼ 100 nm in diam. are obtained. Our findings show that depending on the MoO2 content the band gap varies from 2 eV to 2.4 eV, whereas nanowires sample exhibits the lowest reflectance ≤ 10 % for λ ≥ 450 nm. Furthermore, the photoelectric properties of the produced samples were characterized by integrating them into photoconductive devices. Our results demonstrate a good photoresponse achieving 2 × 104 %, a responsivity as high as 1.13 mA/W, and a specific detectivity of 2.6 × 109 Jones for the nanowires, with a relatively rapid rise and decay times 1.6 s and 0.8 s, respectively. This work emphasizes the high potential of MoS2/MoO2 nanocomposite for the development of highly responsive optoelectronic devices.
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Dates et versions

hal-03797110 , version 1 (20-11-2023)

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D. Mouloua, N.S. Rajput, Jean-François Blach, M. Lejeune, M. El Marssi, et al.. Fabrication control of MoS2/MoO2 nanocomposite via chemical vapor deposition for optoelectronic applications. Materials Science and Engineering: B, 2022, 286, pp.116035. ⟨10.1016/j.mseb.2022.116035⟩. ⟨hal-03797110⟩
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