A graphene-based surface plasmon sensor

被引：31

作者：

Tan, Wei Chun ^{[1
]}

Hofmann, Mario ^{[2
]}

Hsieh, Ya-Ping ^{[3
]}

Lu, Meng Lin ^{[1
]}

Chen, Yang Fang ^{[1
]}

机构：

[1] Taiwan Natl Univ, Dept Phys, Taipei 10617, Taiwan

[2] Cheng Kung Univ, Dept Mat Sci, Tainan 701, Taiwan

[3] Chung Cheng Univ, Grad Inst Optomechatron, Chiayi 62102, Taiwan

来源：

NANO RESEARCH | 2012年 / 5卷 / 10期

关键词：

Two-dimensional materials; graphene; analysis; chemical vapor deposition; plasmon; SILVER NANOPARTICLES; ELECTRIC-FIELD; LARGE-AREA; RESONANCE; FILMS; DESORPTION; DEPENDENCE; ADSORPTION; NANOTUBES; GAS;

D O I：

10.1007/s12274-012-0253-y

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：

We present the application of graphene as a plasmon sensor. It was found that the electronic transport of chemical vapor deposition CVD-synthesized graphene is sensitive to surface plasmons generated by the illumination of metal nanoparticles. The observed change in electronic conduction can be up to seven times larger than the intrinsic photoresponse of graphene. A study of the mechanism revealed local field-assisted oxygen desorption induced by surface plasmons to be the cause of this intriguing behavior. A detailed investigation of the wavelength and spacing dependence of the plasmon-graphene coupling proves that graphene can be used as a sensitive, high resolution electronic plasmon detector. This finding shows the potential of devices exploiting the novel properties of graphene and surface plasmons.

引用

页码：695 / 702

页数：8

共 27 条

[1] The effects of an external electric field on the adatom-surface bond: H and Al adsorbed on Si(111) [J].