title: Templated Sub-100-nm-Thick Double-Gyroid Structure from Si-Containing Block Copolymer Thin Films.
abstract: The directed self-assembly of diblock copolymer chains (poly(1,1-dimethyl silacyclobutane)-block-polystyrene, PDMSB-b-PS) into a thin film double gyroid structure is described. A decrease of the kinetics of a typical double-wave pattern formation is reported within the 3D-nanostructure when the film thickness on mesas is lower than the gyroid unit cell. However, optimization of the solvent-vapor annealing process results in very large grains (over 10 µm²) with specific orientation (i.e., parallel to the air substrate) and direction (i.e., along the groove direction) of the characteristic (211) plane, demonstrated by templating sub-100-nm-thick PDMSB-b-PS films.
authors.affiliation: Laboratoire de Chimie des Polymères Organiques, CNRS - ENSCPB - Université de Bordeaux, 16 Avenue Pey-Berland, F-33607, Pessac Cedex, France.
authors.forename: Karim
authors.initials: K
authors.lastname: Aissou
authors.affiliation: Laboratoire de Chimie des Polymères Organiques, CNRS - ENSCPB - Université de Bordeaux, 16 Avenue Pey-Berland, F-33607, Pessac Cedex, France.
authors.forename: Muhammad
authors.initials: M
authors.lastname: Mumtaz
authors.affiliation: Macromolecular Chemistry & New Polymeric Materials, Zernike Institute for Advanced Materials, Nijenborgh 4, NL-9747, AG, Groningen, The Netherlands.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Portale
authors.affiliation: Laboratoire de Chimie des Polymères Organiques, CNRS - ENSCPB - Université de Bordeaux, 16 Avenue Pey-Berland, F-33607, Pessac Cedex, France.
authors.forename: Cyril
authors.initials: C
authors.lastname: Brochon
authors.affiliation: Laboratoire de Chimie des Polymères Organiques, CNRS - ENSCPB - Université de Bordeaux, 16 Avenue Pey-Berland, F-33607, Pessac Cedex, France.
authors.forename: Eric
authors.initials: E
authors.lastname: Cloutet
authors.affiliation: Laboratoire de Chimie des Polymères Organiques, CNRS - ENSCPB - Université de Bordeaux, 16 Avenue Pey-Berland, F-33607, Pessac Cedex, France.
authors.forename: Guillaume
authors.initials: G
authors.lastname: Fleury
authors.affiliation: Laboratoire de Chimie des Polymères Organiques, CNRS - ENSCPB - Université de Bordeaux, 16 Avenue Pey-Berland, F-33607, Pessac Cedex, France.
authors.forename: Georges
authors.initials: G
authors.lastname: Hadziioannou
keywords: double gyroid structure; self-assembly; solvent-vapor annealing; templated substrates; thin films