Structure and Properties of Nanocomposites Formed by the Occlusion of Block Copolymer Worms and Vesicles Within Calcite Crystals - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue Advanced Functional Materials Année : 2016

Structure and Properties of Nanocomposites Formed by the Occlusion of Block Copolymer Worms and Vesicles Within Calcite Crystals

Résumé

Spin coating is one of the most versatile methods to generate nanostructured block copolymer (BCP) thin films which are highly desired for many applications such as nanolithography or organic electronics. The self-assembly pathways through phase separation, both in solvent and in bulk, strongly influence the final BCP structure obtained after spin coating. As a demonstration, the formation of highly ordered in-plane lamellae is elucidated herein by using in situ grazing incidence small-angle X-ray scattering. A key step in this complex fast organization process is the formation of intermediate micellar phases triggered by solvent affinity toward one of the block. Indeed, directional coalescence of a short-lived intermediate hexagonal structure of cylindrical micelles enables the development of a final highly ordered lamellar structure, predominantly oriented parallel to the substrate surface. These results suggest that the existence of such transient micellar phases is a crucial process in order to produce highly ordered structures with a specific orientation directly after the BCP thin film deposition; and should be the focus of further optimization for the directed self-assembly and, more generally, in the bottom-up nanostructure fabrication.

Domaines

Chimie
Fichier principal
Vignette du fichier
Adv Funct Materials - 2016 - Kim - Structure and Properties of Nanocomposites Formed by the Occlusion of Block Copolymer-1.pdf (9.75 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-01677989 , version 1 (30-05-2022)

Licence

Paternité

Identifiants

Citer

Yi-Yeoun Kim, M. Semsarilar, Joseph D. Carloni, Kang Rae Cho, Alexander N. Kulak, et al.. Structure and Properties of Nanocomposites Formed by the Occlusion of Block Copolymer Worms and Vesicles Within Calcite Crystals. Advanced Functional Materials, 2016, 26 (9), pp.1382 - 1392. ⟨10.1002/adfm.201504292⟩. ⟨hal-01677989⟩
53 Consultations
9 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More