Tuning and Sensitivity Enhancement of Surface Plasmon Resonance Biosensor With Graphene Covered Au-MoS2-Au Films

被引：95

作者：

Lin, Zhitao ^{[1
]}

Jiang, Leyong ^{[1
,2
]}

Wu, Leiming ^{[1
]}

Guo, Jun ^{[1
]}

Dai, Xiaoyu ^{[1
]}

Xiang, Yuanjiang ^{[1
]}

Fan, Dianyuan ^{[1
]}

机构：

[1] Shenzhen Univ, SZU NUS Collaborat Innovat Ctr Optoelect Sci & Te, Key Lab Optoelect Devices & Syst, Minist Educ & Guangdong Prov,Coll Optoelect Engn, Shenzhen 518060, Peoples R China

[2] Hunan Normal Univ, Coll Phys & Informat Sci, Changsha 410081, Hunan, Peoples R China

来源：

IEEE PHOTONICS JOURNAL | 2016年 / 8卷 / 06期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Graphene; molybdenum disulfide; biosensor; sensitivity; SPR BIOSENSOR; SENSOR; PERFORMANCE; MOS2;

D O I：

10.1109/JPHOT.2016.2631407

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：

In the conventional surface plasmon resonance biosensor, the sensitivity using angular interrogation is low. Graphene/MoS2 has been attached on the metal surface to improve the sensitivity; however, the ability to improve sensitivity is limited. Here, by sandwiching the MoS2 sheets between two gold films in the Kretschmann configuration, we demonstrate an ultrasensitive surface plasmon resonance sensor. By optimizing the structure of sensor, we find that the sensitivity as high as 182 degrees/RIU can be realized with 4-layers MoS2 and a monolayer graphene. Moreover, it is indicated that the sensitivity can be tuned and controlled by changing the layer numbers of graphene and MoS2.

引用

页数：8

共 41 条

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