Sensitivity improved surface plasmon resonance sensor based on graphene and gold nanorods

Author

Shuwen Zeng ; Bergont, M.S. ; Olivier, Augustin ; Xuan-Quyen Dinh ; Xia Yu ; Ken-Tye Yong

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2013

fDate

2-4 Jan. 2013

Firstpage

414

Lastpage

416

Abstract

In this study, we proposed a new sensing configuration for enhancing the surface plasmon resonance (SPR) based on graphene and gold nanorods (Au NRs). Both analytical modeling based on Fresnel equations and numerical analyses through finite element method (FEM) are performed to optimize the number of graphene layers and the aspect ratio (AR) of Au NRs. The improved sensitivity up to 10⁶ degree/ RIU can be achieved by adding a monolayer of graphene onto the Au sensing film with coupling of localized SPR of Au NR (AR=2).

Keywords

finite element analysis; gold; graphene; monolayers; nanorods; nanosensors; surface plasmon resonance; thin film sensors; Au; C; Fresnel equations; SPR sensor; aspect ratio; finite element method; graphene monolayer; nanorods; numerical analyses; sensing film; surface plasmon resonance; Biosensors; Films; Gold; Optical surface waves; Plasmons; Surface waves; Surface plasmon resonance; gold nanorods; graphene; sensor;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoelectronics Conference (INEC), 2013 IEEE 5th International

Conference_Location

Singapore

ISSN

2159-3523

Print_ISBN

978-1-4673-4840-9

Electronic_ISBN

2159-3523

Type

conf

DOI

10.1109/INEC.2013.6466064

Filename

6466064