当前位置：
X-MOL 学术
›
ACS Appl. Nano Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Layered Assembly of Silver Nanocubes/Polyelectrolyte/Gold Film as an Efficient Substrate for Surface-Enhanced Raman Scattering
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2020-01-29 , DOI: 10.1021/acsanm.9b02579 Qiang Wang 1 , Xiuhui Bai 1 , Yang Zhang 2 , Ziang Zhou 1 , Ming Guo 1 , Jiatao Zhang 3 , Chunhong Li 4 , Changzheng Wang 5 , Shaowei Chen 6
ACS Applied Nano Materials ( IF 5.3 ) Pub Date : 2020-01-29 , DOI: 10.1021/acsanm.9b02579 Qiang Wang 1 , Xiuhui Bai 1 , Yang Zhang 2 , Ziang Zhou 1 , Ming Guo 1 , Jiatao Zhang 3 , Chunhong Li 4 , Changzheng Wang 5 , Shaowei Chen 6
Affiliation
|
Surface-enhanced Raman scattering (SERS) is of great importance for the sensitive, rapid, and repeatable detection of target analytes. The electromagnetic enhancement has a major contribution to the signal enhancement in SERS which is critically dependent on the micro-/nanomorphology of noble metal (e.g., Au and Ag) film substrates. Herein, Ag nanocubes/polyelectrolyte/Au (Ag/PE/Au) sandwich-structured film is fabricated by the layer-by-layer deposition and then utilized as an efficient SERS substrate by the coupling of localized surface plasmons (LSPs) and surface plasmon polaritons (SPPs) resonances while the electromagnetic field enhancement is confined within the PE gap layer which is sandwiched between Ag nanocubes and Au film. With rhodamine 6G and crystal violet as the probe molecules, the Ag/PE/Au sandwich-structured film demonstrates highly sensitive SERS signals, which is further supported by the theoretical simulations as well. This work indicates that the Ag/PE/Au sandwich-structured film can be employed as a reliable SERS substrate for sensitive molecular sensing applications.
中文翻译：
银纳米立方体/高分子电解质/金膜的分层组装，作为表面增强拉曼散射的有效基质
表面增强拉曼散射（SERS）对于灵敏，快速和可重复的目标分析物检测非常重要。电磁增强对SERS中的信号增强有重大贡献，而SERS则主要取决于贵金属（例如Au和Ag）薄膜基板的微观/纳米形态。在此，通过逐层沉积制备Ag纳米立方体/聚电解质/ Au（Ag / PE / Au）夹心结构膜，然后通过局部表面等离子体激元（LSPs）和表面等离子体激元的耦合用作有效的SERS衬底。电磁场增强被限制在PE间隙层内，而PEPP层夹在Ag纳米立方体和Au膜之间。以若丹明6G和结晶紫为探针分子，Ag / PE / Au夹心结构膜显示出高度敏感的SERS信号，理论仿真也进一步证明了这一点。这项工作表明，Ag / PE / Au夹心结构膜可以用作敏感分子传感应用中的可靠SERS衬底。
更新日期：2020-01-29
中文翻译：
银纳米立方体/高分子电解质/金膜的分层组装，作为表面增强拉曼散射的有效基质
表面增强拉曼散射（SERS）对于灵敏，快速和可重复的目标分析物检测非常重要。电磁增强对SERS中的信号增强有重大贡献，而SERS则主要取决于贵金属（例如Au和Ag）薄膜基板的微观/纳米形态。在此，通过逐层沉积制备Ag纳米立方体/聚电解质/ Au（Ag / PE / Au）夹心结构膜，然后通过局部表面等离子体激元（LSPs）和表面等离子体激元的耦合用作有效的SERS衬底。电磁场增强被限制在PE间隙层内，而PEPP层夹在Ag纳米立方体和Au膜之间。以若丹明6G和结晶紫为探针分子，Ag / PE / Au夹心结构膜显示出高度敏感的SERS信号，理论仿真也进一步证明了这一点。这项工作表明，Ag / PE / Au夹心结构膜可以用作敏感分子传感应用中的可靠SERS衬底。
京公网安备 11010802027423号