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EnglishWe demonstrate that highly stable fluorescent nanobeads can be obtained by emulsion copolymerization of oligothiophene methyl methacrylates and styrene and that deposition on a planar surface by microfluidic lithography induces the spontaneous nanobead self-assembling. The average nanobead diameter was controlled in the submicron scale by varying the amount of surfactant used in the polymerization reaction. Photoluminescence and pump-probe experiments proved that the nanobeads had retained the optical signature of the oligothiophenes, yet preventing their aggregation. Scanning electron microscopy images of the self-assembled nanobeads are reported.
| Titolo: | Shaping thiophene oligomers into fluorescent nanobeads forming two-dimensionally patterned assemblies by the capillary effect |
| Autori: | |
| Data di pubblicazione: | 2005 |
| Rivista: | |
| Abstract: | We demonstrate that highly stable fluorescent nanobeads can be obtained by emulsion copolymerization of oligothiophene methyl methacrylates and styrene and that deposition on a planar surface by microfluidic lithography induces the spontaneous nanobead self-assembling. The average nanobead diameter was controlled in the submicron scale by varying the amount of surfactant used in the polymerization reaction. Photoluminescence and pump-probe experiments proved that the nanobeads had retained the optical signature of the oligothiophenes, yet preventing their aggregation. Scanning electron microscopy images of the self-assembled nanobeads are reported. |
| Handle: | http://hdl.handle.net/11587/105877 |
| Appare nelle tipologie: | Articolo pubblicato su Rivista |
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