Al-Cu bimetallic nanoparticles (NPs) thin film was fabricated by Nd:YAG fiber pulsed-laser irradiation of Al/Cu bilayers at ambient conditions. The effects of laser irradiation on the morphology, structure, composition and optical properties of the samples were investigated. The tunability of both localized surface plasmon resonance (LSPR) wavelength and intensity were realized by varying the pulse shot or relative thickness of Al/Cu bilayers. The SEM analysis with EDS results further revealed that the obtained particles consisted of a mean diameter of 36-80 nm bimetallic NPs system, being dependent on the Cu proportion. In addition, Surface-enhanced Raman spectroscopy (SERS) measurement and corresponding finite-difference time-domain (FDTD) simulation of before and after laser irradiation samples were discussed to verify the LSPR properties. | Publication name | APPLIED SURFACE SCIENCE Volume: 540 Part: 1 Article Number: 148397 DOI: 10.1016/j.apsusc.2020.148397 Published: FEB 28 2021 | | Author(s) | Liao, Jing; Zhan, Yuhao; Liu, Qingyou; Hong, Ruijin; Tao, Chunxian; Wang, Qi; Lin, Hui; Han, Zhaoxia; Zhang, Dawei | | Corresponding author(s) | HONG Ruijin
rjhong@usst.edu.cn
-Univ Shanghai Sci & Technol, Engn Res Ctr Opt Instrument & Syst, Minist Educ, 516 Jungong Rd, Shanghai 200093, Peoples R China.
-Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, 516 Jungong Rd, Shanghai 200093, Peoples R China. | | Author(s) from IGCAS | LIU Qingyou | View here for the details
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