Nanoplasmonic Photoluminescence Enhancement of PtOEP-PS Nanocomposite
Paper ID : 1210-ICNS
Zahra Mohammad Hosseini1, Esmaeil Heydari *2
1Faculty of Physics, Kharazmi University
2Faculty of Physics, Kharazmi University, Tehran Iran
Recently, gold nanoparticles have attracted tremendous attention due to their unique properties associated with localized surface plasmon resonance. It has been known that they behave as nano-antenna when they are located in close proximity of luminophore molecules and focus the excitation light into a nanoscale volume. In the current work, Au-NPs with SiO2 shell are used to enhance the photoluminescence of PtOEP-PS films. Metal complexes such as PtOEP has been employed as a reliable material for gas sensing applications. Thus, we use optical spectroscopy to investigate the effect of the Au-NPs on the photoluminescence of the films. It is observed that the PL of the film is enhanced in the presence of the plasmonic nanoparticles. The enhancement is attributed to the excitation rate enhancement induced by the nano-focusing effect of the plasmonic nanoparticles. This condition is satisfied by the overlap of the localized surface plasmon resonance of the NPs and the absorption spectra of the PtOEP complex.
Au@SiO2 NPs; Nanoplasmonics; Localized Surface Plasmon Resonance; Photoluminescence Enhancement; PtOEP
Status : Abstract Accepted (Poster Presentation)