期刊論文
| 學年 | 102 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2014-04-15 |
| 作品名稱 | Enhanced light–matter interaction of graphene–gold nanoparticle hybrid films for high-performance SERS detection |
| 作品名稱（其他語言） | |
| 著者 | Yuanxin Du; Yuan Zhao; Yan Qu; Chia-Hao Chen; Chieh-Ming Chen; Cheng-Hao Chuang; Yanwu Zhu |
| 單位 | 淡江大學物理學系 |
| 出版者 | United Kingdom: R S C Publications |
| 著錄名稱、卷期、頁數 | Journal of Materials Chemistry C 2, p.4683-4691 |
| 摘要 | By simply coating graphene films on Au nanoparticles, the optical properties of the hybrid films are investigated. It is found that the coverage of a monolayer graphene film leads to a decreased transmittance of up to 15.8% in the visible range, much higher than the 2.3% transmittance loss for intrinsic graphene. At the same time, the plasmonic resonance of the hybrid films experiences a red-shift in resonance frequency and a broadening in the transmission dip. By means of finite element simulations, these observations are attributed to strong light–matter interaction at the interface between graphene and Au nanoparticles, as indicated by the increased absorption cross section and higher electric field intensity. The electron transfer between graphene and Au nanoparticles is confirmed by high resolution X-ray photoelectron spectroscopy studies. Furthermore, the enhanced electromagnetic hot spots at the interface between graphene and Au nanoparticles make such graphene–Au nanoparticle hybrid films cost-effective and high-performance surface-enhanced Raman scattering substrates for detecting organic molecules such as rhodamine-6G, for which an enhancement factor of [similar]107 is achieved. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 2050-7534 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | Du, Yuanxin |
| 審稿制度 | 是 |
| 國別 | GBR |
| 公開徵稿 | |
| 出版型式 | ,電子版,紙本 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/100061 ) |