Journal article
+ 1 other files
Crafting Nanostructured Hybrid Block Copolymer–Gold Nanoparticles by Confined Self-Assembly in Evaporative Droplets
DOKPE
-
Escher, Andrea
University of Genoa, Italy
-
Bravetti, Gianluca
ORCID
University of Fribourg
-
Bertucci, Simone
ORCID
University of Genoa, Italy
-
Comoretto, Davide
ORCID
University of Genoa, Italy
-
Weder, Christoph
ORCID
University of Fribourg
-
Steiner, Ullrich
ORCID
University of Fribourg
-
Lova, Paola
ORCID
University of Genoa, Italy
-
Dodero, Andrea
ORCID
University of Fribourg
Show more…
Published in:
- ACS Macro Letters. - Washington, D.C., US: American Chemical Society (ACS). - 2024, vol. 13, p. 1338-1344
English
Hybrid organic−inorganic nanostructures offersignificant potential for developing advanced functional materialswith numerous technological applications. However, the fabrica-tion process is often tedious and time-consuming. This studypresents a facile method for fabricating block copolymer-basedphotonic microspheres incorporating plasmonic gold nanopar-ticles. Specifically, the confined self-assembly of poly(styrene)-b-poly(2-vinylpyridine) in emulsion droplets allows the formation ofspherical, noniridescent, concentric lamellar structures, i.e., onion-like particles that are subsequently infiltrated with gold salt. Usingethanol as a preferential solvent allows the loading of metal ionsexclusively into the poly(2-vinylpyridine) domains, which aresubsequently reduced, leading to the in situ, spatially controlled formation of gold nanoparticles. The hybrid structures exhibit a well-defined photonic bandgap and plasmonic resonance at low gold concentrations. These results demonstrate the feasibility offabricating optically active photonic structures comprising metal nanoparticles in a block copolymer array via a simple two-stepfabrication process.
-
Faculty
- Faculté des sciences et de médecine
-
Department
- AMI - Physique de la matière molle
-
Language
-
-
Classification
-
Chemistry
-
License
-
CC BY
-
Open access status
-
hybrid
-
Identifiers
-
-
Persistent URL
-
https://folia.unifr.ch/unifr/documents/329500
Other files
Statistics
Document views: 2
File downloads:
- escher-et-al-2024-crafting-nanostructured-hybrid-block-copolymer-gold-nanoparticles-by-confined-self-assembly-in.pdf: 0
- escheretal._supportinginformationrevised.pdf: 0