Optoelectronics Letters, Volume. 17, Issue 10, 577(2021)
Insight into excitation wavelength and hotspot effect of noble metal nanoparticles dimer
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 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 bimetallic structure is discussed as well. The conclusions can provide reference for the selection of metal material at different excitation wavelengths.
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MA Aning, WEI Wenjing, LI Guojian, WANG Yurong, GENG Di, ZHANG Zhongqiang. Insight into excitation wavelength and hotspot effect of noble metal nanoparticles dimer[J]. Optoelectronics Letters, 2021, 17(10): 577
Received: Dec. 17, 2020
Accepted: Feb. 7, 2021
Published Online: Jan. 10, 2022
The Author Email: Aning MA (maan@lzu.edu.cn)