Role of penetrability into a brush-coated surface in directed self-assembly of block copolymers

High-density and high-resolution line and space patterns on surfaces are obtained by directed self-assembly of lamella-forming block copolymers (BCPs) using wide-stripe chemical guiding patterns. When the width of the chemical pattern is larger than the half-pitch of the BCP, the interaction energy...

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Autores: Evangelio Araujo, Laura, Fernández Regúlez, Marta, Fraxedas, Jordi|||0000-0002-2821-4831, Müller, Marcus|||0000-0002-7472-973X, Pérez Murano, Francesc|||0000-0002-4647-8558
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Universitat Autònoma de Barcelona
Repositorio:Dipòsit Digital de Documents de la UAB
Idioma:inglés
OAI Identifier:oai:ddd.uab.cat:237740
Acceso en línea:https://ddd.uab.cat/record/237740
https://dx.doi.org/urn:doi:10.1021/acsami.8b19062
Access Level:acceso abierto
Palabra clave:Block copolymer
Directed self-assembly
Chemical epitaxy
Interface energy
Wide stripes
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spelling Role of penetrability into a brush-coated surface in directed self-assembly of block copolymersEvangelio Araujo, LauraFernández Regúlez, MartaFraxedas, Jordi|||0000-0002-2821-4831Müller, Marcus|||0000-0002-7472-973XPérez Murano, Francesc|||0000-0002-4647-8558Block copolymerDirected self-assemblyChemical epitaxyInterface energyWide stripesHigh-density and high-resolution line and space patterns on surfaces are obtained by directed self-assembly of lamella-forming block copolymers (BCPs) using wide-stripe chemical guiding patterns. When the width of the chemical pattern is larger than the half-pitch of the BCP, the interaction energy between each BCP domain and the surface is crucial to obtain the desired segregated film morphology. We investigate how the intermixing between BCPs and polymer brush molecules on the surface influences the optimal surface and interface free energies to obtain a proper BCP alignment. We have found that computational models successfully predict the experimentally obtained guided patterns if the penetrability of the brush layer is taken into account instead of a hard, impenetrable surface. Experiments on directed self-assembly of lamella-forming poly(styrene-block-methyl methacrylate) using chemical guiding patterns corroborate the models used in the simulations, where the values of the surface free energy between the BCP and the guiding and background stripes are accurately determined using an experimental method based on the characterization of contact angles in droplets formed after dewetting of homopolymer blends. 22019-01-0120192019-01-01Articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/237740https://dx.doi.org/urn:doi:10.1021/acsami.8b19062reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 619793Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 TEC2015-69864-RMinisterio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295Ministerio de Educación, Cultura y Deporte https://doi.org/10.13039/501100003176 FPU13/03746open accesshttp://purl.org/coar/access_right/c_abf2Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.https://rightsstatements.org/vocab/InC/1.0/info:eu-repo/semantics/openAccessoai:ddd.uab.cat:2377402026-06-06T12:50:31Z
dc.title.none.fl_str_mv Role of penetrability into a brush-coated surface in directed self-assembly of block copolymers
title Role of penetrability into a brush-coated surface in directed self-assembly of block copolymers
spellingShingle Role of penetrability into a brush-coated surface in directed self-assembly of block copolymers
Evangelio Araujo, Laura
Block copolymer
Directed self-assembly
Chemical epitaxy
Interface energy
Wide stripes
title_short Role of penetrability into a brush-coated surface in directed self-assembly of block copolymers
title_full Role of penetrability into a brush-coated surface in directed self-assembly of block copolymers
title_fullStr Role of penetrability into a brush-coated surface in directed self-assembly of block copolymers
title_full_unstemmed Role of penetrability into a brush-coated surface in directed self-assembly of block copolymers
title_sort Role of penetrability into a brush-coated surface in directed self-assembly of block copolymers
dc.creator.none.fl_str_mv Evangelio Araujo, Laura
Fernández Regúlez, Marta
Fraxedas, Jordi|||0000-0002-2821-4831
Müller, Marcus|||0000-0002-7472-973X
Pérez Murano, Francesc|||0000-0002-4647-8558
author Evangelio Araujo, Laura
author_facet Evangelio Araujo, Laura
Fernández Regúlez, Marta
Fraxedas, Jordi|||0000-0002-2821-4831
Müller, Marcus|||0000-0002-7472-973X
Pérez Murano, Francesc|||0000-0002-4647-8558
author_role author
author2 Fernández Regúlez, Marta
Fraxedas, Jordi|||0000-0002-2821-4831
Müller, Marcus|||0000-0002-7472-973X
Pérez Murano, Francesc|||0000-0002-4647-8558
author2_role author
author
author
author
dc.subject.none.fl_str_mv Block copolymer
Directed self-assembly
Chemical epitaxy
Interface energy
Wide stripes
topic Block copolymer
Directed self-assembly
Chemical epitaxy
Interface energy
Wide stripes
description High-density and high-resolution line and space patterns on surfaces are obtained by directed self-assembly of lamella-forming block copolymers (BCPs) using wide-stripe chemical guiding patterns. When the width of the chemical pattern is larger than the half-pitch of the BCP, the interaction energy between each BCP domain and the surface is crucial to obtain the desired segregated film morphology. We investigate how the intermixing between BCPs and polymer brush molecules on the surface influences the optimal surface and interface free energies to obtain a proper BCP alignment. We have found that computational models successfully predict the experimentally obtained guided patterns if the penetrability of the brush layer is taken into account instead of a hard, impenetrable surface. Experiments on directed self-assembly of lamella-forming poly(styrene-block-methyl methacrylate) using chemical guiding patterns corroborate the models used in the simulations, where the values of the surface free energy between the BCP and the guiding and background stripes are accurately determined using an experimental method based on the characterization of contact angles in droplets formed after dewetting of homopolymer blends.
publishDate 2019
dc.date.none.fl_str_mv 2
2019-01-01
2019
2019-01-01
dc.type.none.fl_str_mv Article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://ddd.uab.cat/record/237740
https://dx.doi.org/urn:doi:10.1021/acsami.8b19062
url https://ddd.uab.cat/record/237740
https://dx.doi.org/urn:doi:10.1021/acsami.8b19062
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.relation.none.fl_str_mv European Commission https://doi.org/10.13039/501100000780 619793
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 TEC2015-69864-R
Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2013-0295
Ministerio de Educación, Cultura y Deporte https://doi.org/10.13039/501100003176 FPU13/03746
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
https://rightsstatements.org/vocab/InC/1.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Dipòsit Digital de Documents de la UAB
instname:Universitat Autònoma de Barcelona
instname_str Universitat Autònoma de Barcelona
reponame_str Dipòsit Digital de Documents de la UAB
collection Dipòsit Digital de Documents de la UAB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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