Insight into excitation wavelength and hotspot effect of noble metal nanoparticles dimer

• 作者: MA Aning WEI Wenjing LI Guojian WANG Yurong GENG Di ZHANG Zhongqiang
• 来源期刊: 光电子快报（英文版）
• 年，卷（期）: 2021,（10）
• 所属期刊栏目: Micro-Nanostructures
• 页码范围: 577-580
• 页数: 4页
• 语种: 英文
• DOI: 10.1007/s11801-021-0200-9

摘要

A proper excitation wavelength and strong hot-spot effect are of great importance for the application of sur-face-enhanced Raman spectroscopy(SERS)in the field of biochemistry.As a popular SERS substrate,noble metal nanoparticles dimer is analyzed systematically in this paper.The hot-spot effect and the resonance peak position with varying geometric parameters of metal nanoparticles are investigated.Moreover,the excitation wavelength of bimetal-lic structure is discussed as well.The conclusions can provide reference for the selection of metal material at different excitation wavelengths.