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首页> 外文期刊>Optical and Quantum Electronics >A highly performed SPR biosensor based on bismuth ferrite-bromide materials-BP/graphene hybrid structure
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A highly performed SPR biosensor based on bismuth ferrite-bromide materials-BP/graphene hybrid structure

机译：A highly performed SPR biosensor based on bismuth ferrite-bromide materials-BP/graphene hybrid structure

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Abstract This paper explores the numerical analysis of a highly performed SPR biosensor employing a hybrid structure of Bismuth Ferrite-Bromide materials-BP/Graphene. In the study, we have considered several bromide materials, such as rubidium bromide (RbBr), potassium bromide (KBr), sodium bromide (NaBr), caesium bromide (CsBr), lithium bromide (LiBr), silver bromide (AgBr) and thallium bromide (TIBr). The investigation is executed at 633 nm wavelength using the transfer matrix method and angular interrogation technique. Firstly, different refractive index prisms have been discussed, and it has been discovered that utilizing a low refractive index prism can improve sensitivity. Furthermore, the performance of the proposed SPR sensor is investigated and observed that BP-based structure (Bismuth Ferrite-bromide materials-BP) facilitates better SPR performance than the graphene-based structure (Bismuth Ferrite-bromide materials-graphene). The highest performance parameters, such as S of 468 deg/RIU, quality-factor of 87.80RIU−1, figure-of-merit of 87.79, and detection-accuracy of 0.44 are achieved for BP-based structure (Bismuth Ferrite-TIBr-BP), which are 1.32, 1.46, 1.51, and 1.47 times higher than the respective performance of the graphene-based structure. In addition, resonance-angle-shift variations versus a unit of sensing RI changes are observed in this paper.

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