Towards water desalination membrane and Terahertz bolometric detection using low dimensional material with defects.

ORAL

Abstract

Understanding and controlling defects in low-dimensional materials is essential to exploit these novel materials' potential for applications. We find that the device fabrication process substantially affects the defect density and that a higher defect density greatly enhances the bolometer device's performance, yielding faster response time and lower thermal conductance in a wide range of power and temperature [1]. We studied this defect using plasma sputtering and experimental and calculated Raman spectra. We show that we can determine the type of defects, which can help engineer a 2D membrane for water desalination and Terahertz Applications [2-3].

*This work has been supported by OCP project grant AS70, "Towards phosphorene-based materials and devices,” and by the support of the Chair "Multiphysics and HPC" led by the Mohammed VI Polytechnic University, sponsored by OCP.

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Publication: El Fatimy, A., Han, P., Quirk, N., Marie, L. S., Dejarld, M. T., Myers-Ward, R. L., ... & Barbara, P. (2019). Effect of defect-induced cooling on graphene hot-electron bolometers. Carbon, 154, 497-502.

Yuki Tsuda et al, J. Opt. Soc. Am. B 26, A52-A57 (2009)

Knap W, El Fatimy A, Torres J, Teppe F, Orlov M and Gavrilenko, Low-Temperature Physics 33, 291 (2007); https://doi.org/10.1063/1.2719970

D. Tchoffo et al, In preparation for Nature communication, 2022.

I. Benabdallah1, A. AitAbdelkader et al, in preparation for Nano Letter, 2022

Presenters

  • Abdelouahad El Fatimy

    • Institute of Applied Physics, Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid, Ben Guerir, 43150, Morocco.
    • Mohammed VI Polytechnic University

Authors

  • Abdelouahad El Fatimy

    • Institute of Applied Physics, Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid, Ben Guerir, 43150, Morocco.
    • Mohammed VI Polytechnic University

  • Ismail Benabdallah

    • Institute of Applied Physics, Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid, Ben Guerir, 43150, Morocco.
    • Mohammed VI Polytechnic University

  • Abderrahman Aberda

    • Institute of Applied Physics, Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid, Ben Guerir, 43150, Morocco.
    • Mohammed VI Polytechnic University

  • Petr Neugebauer

    • brno university of Technology, CEITEC
    • Central European Institute of Technology, CEITEC BUT, Purkynova 656/123, Brno 61200, Czech Republic
    • Central European Institute of Technology
    • CEITEC, Brno University of Technology

  • oleh Martyniuk

    • brno university of technology, CEITEC

  • abdelmajid AitAbdelkader

    • Institute of Applied Physics, Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid, Ben Guerir, 43150, Morocco.

  • brice D. Tchoffo

    • Institute of Applied Physics, Mohammed VI Polytechnic University, Lot 660, Hay Moulay Rachid, Ben Guerir, 43150, Morocco.