In this work, Ag/MoS2 composite thin films were fabricated. The effects of MoS2 layer on the structure and optical properties of Ag thin film were investigated. XRD results show that MoS2 buffer layer has the effects of promoting grain growth of Ag and increasing their particle sizes confirmed by SEM images. The surface plasmon resonance (SPR) wavelength of Ag was observed to shift from 432 nm to 1650 nm with the introduction of MoS2 buffer layer. The nonlinear absorption (NLA) response of Ag/MoS2 composite thin films was significantly improved compared with that of the Ag single layer, which is attributed to the SPR of the Ag/MoS2 composite thin films and the enhanced electric field induced by SPR. Moreover, the simulation results of Finite-Difference Time-Domain (FDTD) are in good agreement with the experimental results.
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Publication name |
PHYSICA B-CONDENSED MATTER Volume: 591 Article Number: 412261 DOI: 10.1016/j.physb.2020.412261 Published: AUG 15 2020 |
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Author(s) |
Li, Zhengwang; Hong, Ruijin; Liu, Qingyou; Liao, Jing; Cheng, Qianbing; Wang, Qi; Tao, Chunxian; Lin, Hui; Zhang, Dawei |
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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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