Enhanced Nonlinear Radiations in Plexcitonic Hybrids of Cyanine Dyes and Silver Nanostructured Films for Advanced Photonic Applications

Chen, Li-Jiong1,2,3; Dou, Zhen-Long3; Jia, Xu-Chao3; Zhang, Shuo3; Peng, Ru-Wen1,2; Zhou, Li3; Wang, Qu-Quan4

2024-07-01

10.1021/acsanm.4c02626

ACS APPLIED NANO MATERIALS   影响因子和分区

2574-0970

A quasi-particle named plexciton emerges from the hybridization between plasmons and molecular excitons which exhibits characteristic spectral features, such as Fano resonance and Rabi splitting in extinction, scattering, and reflection spectroscopy. However, the understanding of the fluorescence properties in plexcitonic hybrids remains unclear, especially for nonlinear upconverted emissions. In this Letter, we prepared three-component plexcitonic hybrids with two cyanine dyes (Cy3 and Cy5) coupled to Ag nanostructured films and investigated their enhanced nonlinear radiation, including two-photon luminescence (TPL), second-harmonic generation (SHG), and surface-enhanced Raman scattering (SERS). The plexcitonic hybrids showed a splitting extinction spectrum with five peaks induced by the hybrid of the monomer and dimer excitons in the two cyanine dyes with surface plasmon resonance of the Ag films. Under the laser excitation at 1260 nm, the (Cy3-Cy5)/Ag hybrid had a 6.3-fold enhancement of TPL and a 5.1-fold enhancement of SHG compared to a two-component hybrid of Cy5/Ag. Our experimental results provide valuable insights for designing and manufacturing multicomponent plexcitonic devices with highly efficient nonlinear radiation. The plexcitonic hybrids, characterized by their featured extinction properties and largely enhanced upconverted emission, have great promise for applications in nonlinear optics, quantum information processing, biomedical sensing, and photochemistry.

plasmons molecular excitons multicomponent two-photon luminescence second-harmonic generation surface-enhanced Raman scattering

SCI ; EI

英语

通讯

National Key R&D Program of China[2020YFA0211300] ; National Natural Science Foundation of China["12174294","12074296","12374288"]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001273632200001

AMER CHEMICAL SOC

Web of Science

1.Nanjing Univ, Sch Phys, Natl Lab Solid State Microstruct, Nanjing 210093, Peoples R China
2.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Peoples R China
3.Wuhan Univ, Sch Phys & Technol, Key Lab Artificial Micro & Nanostruct, Hubei Nucl Solid Phys Key Lab,Minist Educ, Wuhan 430072, Peoples R China
4.Southern Univ Sci & Technol, Coll Sci, Shenzhen 518055, Peoples R China

Chen, Li-Jiong,Dou, Zhen-Long,Jia, Xu-Chao,et al. Enhanced Nonlinear Radiations in Plexcitonic Hybrids of Cyanine Dyes and Silver Nanostructured Films for Advanced Photonic Applications[J]. ACS APPLIED NANO MATERIALS,2024.

Chen, Li-Jiong.,Dou, Zhen-Long.,Jia, Xu-Chao.,Zhang, Shuo.,Peng, Ru-Wen.,...&Wang, Qu-Quan.(2024).Enhanced Nonlinear Radiations in Plexcitonic Hybrids of Cyanine Dyes and Silver Nanostructured Films for Advanced Photonic Applications.ACS APPLIED NANO MATERIALS.

Chen, Li-Jiong,et al."Enhanced Nonlinear Radiations in Plexcitonic Hybrids of Cyanine Dyes and Silver Nanostructured Films for Advanced Photonic Applications".ACS APPLIED NANO MATERIALS (2024).