Improvement of the performance parameters of the surface plasmon resonance biosensor using Al2O3 and WS2

被引：29

作者：

Nur, Jannati Nabiha ^{[1
]}

Hasib, Mohammad Hasibul Hasan ^{[1
]}

Asrafy, Fairuj ^{[1
]}

Shushama, Kamrun Nahar ^{[1
]}

Inum, Reefat ^{[1
]}

Rana, Md. Masud ^{[1
]}

机构：

[1] Rajshahi Univ Engn & Technol, Dept Elect & Elect Engn, Rajshahi, Bangladesh

来源：

OPTICAL AND QUANTUM ELECTRONICS | 2019年 / 51卷 / 06期

关键词：

Surface plasmon resonance (SPR); Two-dimensional transition metal dichalcogenides (TMDC); Aluminium oxide; Sensitivity; Biosensor; GRAPHENE; SENSOR;

D O I：

10.1007/s11082-019-1886-9

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Here, proposed Kretschmann configuration based surface plasmon resonance biosensor shows immense improvement in its performance parameters. This highly sensitive biosensor provides a higher value of quality factor and detection accuracy. We presented a five-layer model of a biosensor with two dimensional transition metal di-chalcogenides Tungsten disulfide (WS2) in addition with Al2O3 layer. By using one layer of WS2 with six layers of Al2O3, the highest sensitivity (227.5 degrees/RIU), detection accuracy (1.1123), and quality factor (28.26RIU(-1)) can be achieved. CaF2 as coupling prism has also played a remarkable role in enhancing the performance parameters for its low refractive index.

引用

页数：11

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