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 马阿宁;魏文静;李国剑;王玉荣;耿迪;张中强

作者机构：School of Information Science and EngineeringLanzhou UniversityLanzhou 730000China China Mobile Communication CorporationLanzhou 730000China School of Electrical EngineeringNorthwest Minzu UniversityLanzhou 730030China 

出 版 物：《Optoelectronics Letters》 (光电子快报（英文版）)

年 卷 期：2021年第17卷第10期

页      面：577-580页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0817[工学-化学工程与技术] 080501[工学-材料物理与化学] 070302[理学-分析化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0703[理学-化学] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(No.61905100) the Fundamental Research Funds for the Central Universities(No.lzujbky-2020-65) 

主　　题：excitation noble dimer 

摘      要：A proper excitation wavelength and strong hot-spot effect are of great importance for the application of surface-enhanced Raman spectroscopy(SERS)in the field of *** a popular SERS substrate,noble metal nanoparticles dimer is analyzed systematically in this *** hot-spot effect and the resonance peak position with varying geometric parameters of metal nanoparticles are ***,the excitation wavelength of bimetallic structure is discussed as *** conclusions can provide reference for the selection of metal material at different excitation wavelengths.