Fabrication of Au-Conjugated Polymer Hybridized Nanoparticles and Their Optical Properties

We have successfully fabricated well-defined Au-core and polydiacetylene-shell hybridized nanoparticles (NPs) having the suitable thickness of dielectric SiO2 layer between Au-core and polydiacetylene-shell by coprecipitation/microwave irradiation method, and subsequent solid-state polymerization pr...

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Bibliographic Details
Published inE-journal of surface science and nanotechnology Vol. 16; p. 436
Main Authors Sakamoto, Naonari, Onodera, Tsunenobu, Oikawa, Hidetoshi, Dezawa, Takuma, Shibata, Yutaka
Format Journal Article
LanguageJapanese
Published Tokyo Japan Science and Technology Agency 01.01.2018
Subjects
Fluorescence
Gold
Light sources
Nanocrystals
Nanomaterials
Nanoparticles
Optical properties
Polydiacetylenes
Silicon dioxide
Thickness
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Summary:We have successfully fabricated well-defined Au-core and polydiacetylene-shell hybridized nanoparticles (NPs) having the suitable thickness of dielectric SiO2 layer between Au-core and polydiacetylene-shell by coprecipitation/microwave irradiation method, and subsequent solid-state polymerization process. The resulting hybridized NPs exhibited the significant enhancement of fluorescence intensity, increase in fluorescence quantum yield, and decrease in fluorescence lifetime, compared with polydiacetylene nanocrystals, due to the “emission enhancement” by localized surface plasmon resonance effect, and then would be one of the promising plasmonic nanomaterials toward optical device applications such as intense and stable point light sources. [DOI: 10.1380/ejssnt.2018.436]
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ISSN:1348-0391
DOI:10.1380/ejssnt.2018.436