Journal
OPTICAL MATERIALS
Volume 82, Issue -, Pages 93-103Publisher
ELSEVIER
DOI: 10.1016/j.optmat.2018.05.052
Keywords
Benzothiazole; Ball-type phthalocyanines; Gold and silver nanoparticles; Photophysics; Optical limiting
Categories
Funding
- Department of Science and Technology Innovation and National Research Foundation, South Africa through DST/NRF South African Research Chairs Initiative [UID 62620]
- Rhodes University
Ask authors/readers for more resources
The synthesis of zinc-zinc, gallium-gallium and indium-indium ball-type phthalocyanines (complexes 4, 5 and 6) and the surface assembly of the complexes onto metallic gold and silver nanoparticles are reported in this work. Furthermore, their photophysical and nonlinear optical dynamics were investigated. Decreases in the fluorescence quantum yields with a corresponding increase in the triplet quantum yields of the nanoconjugates in comparison to complexes 4, 5 and 6 alone were observed. The mechanism of strong reverse saturable absorption observed was found to be predominantly dependent on excited state absorption. The optical limiting thresholds range from 0.09 to 0.19 J/cm(2). Enhanced triplet parameters and nonlinear optical responses were found when the complexes were conjugated to metallic nanoparticles.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available