Sensitivity Enhancement of Surface Plasmon Resonance Biosensor with 2-D Franckeite Nanosheets

被引：33

作者：

Karki, Bhishma ^{[1
]}

Sharma, Sandeep ^{[2
,3
,4
]}

Singh, Yadvendra ^{[5
]}

Pal, Amrindra ^{[6
]}

机构：

[1] Tribhuvan Univ, Dept Phys, Trichandra Multiple Campus, Kathmandu 44600, Nepal

[2] OMKARR Tech, New Delhi, India

[3] iNurture Educ Solut, Bengaluru, Karnataka, India

[4] Ajeenkya DY Patil Univ, Dept IT, Pune, Maharashtra, India

[5] Indian Inst Technol Roorkee, Appl Plasmon & Photon Lab, Roorkee, Uttarakhand, India

[6] DIT Univ, Dept EECE Dept, Dehra Dun, Uttarakhand, India

来源：

PLASMONICS | 2022年 / 17卷 / 01期

关键词：

Surface plasmon resonance; Chemical sensor; Finite element method (FEM); Sensitivity enhancement; LAYER GRAPHENE; SPR SENSOR; HETEROSTRUCTURE;

D O I：

10.1007/s11468-021-01495-6

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The sensitivity of a standard surface plasmon resonance (SPR) biosensor in angular interrogation is low. A unique 2-dimensional substantial heterostructure, franckeite/graphene layer, has been deposited over the metal surface to improve the sensitivity; moreover, the sensitivity is limited to a certain extent. A SPR biosensor based on modified Kretschmann configuration has been investigated, contain bimetallic layers of silver (Ag) and nickel (Ni). A layer of franckeite is sandwich in the metal layer. The proposed configuration has a maximum sensitivity of 352 degrees/RIU, which is 80.80% higher than the conventional sensor. The franckeite is an air-stable 2-D material and has application in the chemical, biological, and medical fields.

引用

页码：71 / 78

页数：8

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