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<p>A novel heterostructure of surface plasmon resonance (SPR) sensors for various analytes has been proposed. The suggested sensor is highly sensitive to the changes in index of refraction detecting media. It is made of Ag, PtSe<sub>2</sub>, and graphene. A study on the performance of graphene thickness, PtSe<sub>2</sub> thickness, and Ag thickness has been performed. It is a simulation-based study using the transfer matrix method (TMM) method, while Maple 18 Software has been used to simulate the structure. Maximum sensitivity of 542.5&#xa0;deg/<i>RIU</i> have been achieved for Ag with a thickness of 50&#xa0;nm deposited on CaF<sub>2</sub> prism, PtSe<sub>2</sub> with three layers, and graphene with a single layer.</p>

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Performance of a Novel Surface Plasmon Resonance Nanostructure Based on PtSe2 and Graphene Thin Films

  • 期刊论文

  • 发表日期：

    2025年5月21日

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  • Mahasen H. Albelbeisi,
  • Malek G. Daher,
  • Sofyan A. Taya,
  • Yogesh Sharma,
  • Hussein A. Elsayed,
  • Mahmood Basil A. AL-Rawi,
  • Ahmed Zohier Ahmed Elhendi,
  • Wail Al Zoubi,
  • Mostafa R. Abukhadra,
  • Ahmed Mehaney

摘要

A novel heterostructure of surface plasmon resonance (SPR) sensors for various analytes has been proposed. The suggested sensor is highly sensitive to the changes in index of refraction detecting media. It is made of Ag, PtSe2, and graphene. A study on the performance of graphene thickness, PtSe2 thickness, and Ag thickness has been performed. It is a simulation-based study using the transfer matrix method (TMM) method, while Maple 18 Software has been used to simulate the structure. Maximum sensitivity of 542.5 deg/RIU have been achieved for Ag with a thickness of 50 nm deposited on CaF2 prism, PtSe2 with three layers, and graphene with a single layer.