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The Effect of Molecular Adsorption on Electro-Optical Properties of Graphene-Based Sensors

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Abstract

Extraordinary electrical and optical features of graphene-based materials attract researchers to improve sensing center of different sensors using them. In this research, the effects of sensing molecules on electro-optical features of graphene-based sensors are modeled. The adsorption effect on the Hamiltonian of the system based on tight-binding model is explored, and also the system band structure is investigated analytically. Then, refractive index deviations based on band gap variations are discovered which are used in response modeling of a graphene-based surface plasmon resonance (SPR) sensor.

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Acknowledgments

The authors would like to acknowledge the Faculty of Electrical Engineering, Universiti Teknologi Malaysia for their support and contribution to this study under visiting research program.

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Authors and Affiliations

  1. Physics Department, Faculty of Science, Urmia University, Urmia, Iran

    Bahar Meshginqalam & Arash Sabatyan

  2. Nanoelectronic Research Group, Physics Department, Faculty of Science, Urmia University, Urmia, Iran

    Mohammad Taghi Ahmadi

  3. Electronics and Computer Engineering Department, Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia

    Mohammad Taghi Ahmadi & Razali Ismail

Authors
  1. Bahar Meshginqalam
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  2. Mohammad Taghi Ahmadi
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  3. Arash Sabatyan
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  4. Razali Ismail
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Correspondence to Mohammad Taghi Ahmadi.

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Meshginqalam, B., Ahmadi, M.T., Sabatyan, A. et al. The Effect of Molecular Adsorption on Electro-Optical Properties of Graphene-Based Sensors. Plasmonics 12, 1193–1198 (2017). https://doi.org/10.1007/s11468-016-0375-2

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  • DOI: https://doi.org/10.1007/s11468-016-0375-2

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