LSP-SPP Coupling Structure Based on Three-Dimensional Patterned Sapphire Substrate for Surface Enhanced Raman Scattering Sensing

• Published in: Nanomaterials (Basel, Switzerland) Vol. 13; no. 9; p. 1518
• Main Authors: Xie, Shuqi, Si, Haipeng, Liu, Cong, Liu, Weihao, Shafi, Muhammad, Jiang, Shouzhen, Yue, Weiwei
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 29.04.2023; MDPI
• Subjects: Aluminum oxide; Analysis; Controllability; Coupling; Coupling (molecular); Detection limits; Electric fields; Ethanol; Fabrication; Finite element method; Hydrophobicity; Identification and classification; light-capturing; Manufacturability; Mass production; Morphology; Nanoparticles; Photolithography; Plasmons; Polaritons; Properties; Raman effect; Raman spectra; Reproducibility; Rhodamine 6G; Sapphire; SERS; Silver; Structure; Substrates; Toluidine; Toluidine blue; China; 3D; coupling; photolithography; hydrophobicity; SERS; reproducibility; light-capturing

Although the fabrication of controllable three-dimensional (3D) microstructures on substrates has been proposed as an effective solution for SERS, there remains a gap in the detection and manufacturability of 3D substrates with high performance. In this study, photolithography is adopted to obtain a...