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Dostęp zamkniętyPathway-engineering for highly-aligned block copolymer arrays
| dc.abstract.en | While the ultimate driving force in self-assembly is energy minimization and the corresponding evolution towards equilibrium, kinetic effects can also play a very strong role. These kinetic effects, such as trapping in metastable states, slow coarsening kinetics, and pathway-dependent assembly, are often viewed as complications to be overcome. Here, we instead exploit these effects to engineer a desired final nanostructure in a block copolymer thin film, by selecting a particular ordering pathway through the selfassembly energy landscape. In particular, we combine photothermal shearing with high-temperature annealing to yield hexagonal arrays of block copolymer cylinders that are aligned in a single prescribed direction over macroscopic sample dimensions. Photothermal shearing is first used to generate a highlyaligned horizontal cylinder state, with subsequent thermal processing used to reorient the morphology to the vertical cylinder state in a templated manner. Finally, we demonstrate the successful transfer of engineered morphologies into inorganic replicas. |
| dc.affiliation | Uniwersytet Warszawski |
| dc.contributor.author | Fukuto, Masafumi |
| dc.contributor.author | Choo, Youngwoo |
| dc.contributor.author | Majewski, Paweł |
| dc.contributor.author | Yager, Kevin G. |
| dc.contributor.author | Osuji, Chinedum O. |
| dc.date.accessioned | 2024-01-25T16:21:57Z |
| dc.date.available | 2024-01-25T16:21:57Z |
| dc.date.issued | 2018 |
| dc.description.finance | Nie dotyczy |
| dc.description.number | 1 |
| dc.description.volume | 10 |
| dc.identifier.doi | 10.1039/C7NR06069F |
| dc.identifier.issn | 2040-3364 |
| dc.identifier.uri | https://repozytorium.uw.edu.pl//handle/item/115583 |
| dc.language | eng |
| dc.pbn.affiliation | chemical sciences |
| dc.relation.ispartof | Nanoscale |
| dc.relation.pages | 416-427 |
| dc.rights | ClosedAccess |
| dc.sciencecloud | nosend |
| dc.title | Pathway-engineering for highly-aligned block copolymer arrays |
| dc.type | JournalArticle |
| dspace.entity.type | Publication |