Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films
We report on the structural, mechanical, and thermal analysis of 40 nm thick polystyrene-block-poly(ethylene oxide) (PS-b-PEO) block copolymer (BCP) films coated with evaporated chromium layers of different thicknesses (1, 2, and 5 nm). Solvent annealing processes allow the structural control of the...
| Autores: | , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universitat Autònoma de Barcelona |
| Repositorio: | Dipòsit Digital de Documents de la UAB |
| Idioma: | inglés |
| OAI Identifier: | oai:ddd.uab.cat:251013 |
| Acceso en línea: | https://ddd.uab.cat/record/251013 https://dx.doi.org/urn:doi:10.1021/acsapm.9b00924 |
| Access Level: | acceso abierto |
| Palabra clave: | Block copolymers Self-assembly Thermal and mechanical mapping Thermal conductivity Scanning probe microscopy |
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Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin filmsSachat, Alexandros el|||0000-0003-3798-9724Spièce, JeanEvangeli, Charalambos|||0000-0003-3867-8530Robson, Alexander JamesKreuzer, Martin|||0000-0002-7305-5016Rodríguez Laguna, María del Rocío|||0000-0001-5582-1728Chávez Ángel, Emigdio|||0000-0002-9783-0806Sledzinska, Marianna|||0000-0001-8592-1121Sotomayor Torres, Clivia M.|||0000-0001-9986-2716Kolosov, Oleg Victor|||0000-0003-3278-9643Alzina, Francesc|||0000-0002-7082-0624Block copolymersSelf-assemblyThermal and mechanical mappingThermal conductivityScanning probe microscopyWe report on the structural, mechanical, and thermal analysis of 40 nm thick polystyrene-block-poly(ethylene oxide) (PS-b-PEO) block copolymer (BCP) films coated with evaporated chromium layers of different thicknesses (1, 2, and 5 nm). Solvent annealing processes allow the structural control of the BCP films morphology by rearranging the position of the PEO cylinders parallel to the substrate plane. High-vacuum scanning thermal microscopy and ultrasonic force microscopy measurements performed in ambient pressure revealed that coated ultrathin metal layers strongly influence the heat dissipation in the BCP films and the local surface stiffness of the individual BCP domains, respectively. The measured tip-sample effective thermal resistance decreases from 6.1 × 107 to 2.5 × 107 K W-1 with increasing Cr film thickness. In addition, scanning probe microscopy measurements allow the thermal and mechanical mapping of the two segregated polymer domains (PEO-PS) of sub-50 nm characteristic sizes, with sub-10 nm thermal spatial resolution. The results revealed the effect of the surface morphology of the BCP and the incorporation of the metal film on the nanoscale thermal properties and volume self-assembly on the mechanical properties. The findings from this study provide insight into the formation of high aspect ratio BCP-metal structures with the more established applications in lithography. In addition, knowledge of the thermal and mechanical properties at the nanoscale is required in emergent applications, where BCPs, or polymers in general, are part of the structure or device. The performance of such devices is commonly related to the requirement of increased heat dissipation while maintaining mechanical flexibility. 22020-01-0120202020-01-01Articlehttp://purl.org/coar/resource_type/c_6501SMURhttp://purl.org/coar/version/c_71e4c1898caa6e32info:eu-repo/semantics/articleapplication/pdfhttps://ddd.uab.cat/record/251013https://dx.doi.org/urn:doi:10.1021/acsapm.9b00924reponame:Dipòsit Digital de Documents de la UABinstname:Universitat Autònoma de BarcelonaInglésengEuropean Commission https://doi.org/10.13039/501100000780 604668Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2017-0706Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 FIS2015-70862-PAgència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-806open 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:2510132026-06-06T12:50:31Z |
| dc.title.none.fl_str_mv |
Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films |
| title |
Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films |
| spellingShingle |
Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films Sachat, Alexandros el|||0000-0003-3798-9724 Block copolymers Self-assembly Thermal and mechanical mapping Thermal conductivity Scanning probe microscopy |
| title_short |
Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films |
| title_full |
Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films |
| title_fullStr |
Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films |
| title_full_unstemmed |
Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films |
| title_sort |
Nanoscale mapping of thermal and mechanical properties of bare and metal-covered self-assembled block copolymer thin films |
| dc.creator.none.fl_str_mv |
Sachat, Alexandros el|||0000-0003-3798-9724 Spièce, Jean Evangeli, Charalambos|||0000-0003-3867-8530 Robson, Alexander James Kreuzer, Martin|||0000-0002-7305-5016 Rodríguez Laguna, María del Rocío|||0000-0001-5582-1728 Chávez Ángel, Emigdio|||0000-0002-9783-0806 Sledzinska, Marianna|||0000-0001-8592-1121 Sotomayor Torres, Clivia M.|||0000-0001-9986-2716 Kolosov, Oleg Victor|||0000-0003-3278-9643 Alzina, Francesc|||0000-0002-7082-0624 |
| author |
Sachat, Alexandros el|||0000-0003-3798-9724 |
| author_facet |
Sachat, Alexandros el|||0000-0003-3798-9724 Spièce, Jean Evangeli, Charalambos|||0000-0003-3867-8530 Robson, Alexander James Kreuzer, Martin|||0000-0002-7305-5016 Rodríguez Laguna, María del Rocío|||0000-0001-5582-1728 Chávez Ángel, Emigdio|||0000-0002-9783-0806 Sledzinska, Marianna|||0000-0001-8592-1121 Sotomayor Torres, Clivia M.|||0000-0001-9986-2716 Kolosov, Oleg Victor|||0000-0003-3278-9643 Alzina, Francesc|||0000-0002-7082-0624 |
| author_role |
author |
| author2 |
Spièce, Jean Evangeli, Charalambos|||0000-0003-3867-8530 Robson, Alexander James Kreuzer, Martin|||0000-0002-7305-5016 Rodríguez Laguna, María del Rocío|||0000-0001-5582-1728 Chávez Ángel, Emigdio|||0000-0002-9783-0806 Sledzinska, Marianna|||0000-0001-8592-1121 Sotomayor Torres, Clivia M.|||0000-0001-9986-2716 Kolosov, Oleg Victor|||0000-0003-3278-9643 Alzina, Francesc|||0000-0002-7082-0624 |
| author2_role |
author author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Block copolymers Self-assembly Thermal and mechanical mapping Thermal conductivity Scanning probe microscopy |
| topic |
Block copolymers Self-assembly Thermal and mechanical mapping Thermal conductivity Scanning probe microscopy |
| description |
We report on the structural, mechanical, and thermal analysis of 40 nm thick polystyrene-block-poly(ethylene oxide) (PS-b-PEO) block copolymer (BCP) films coated with evaporated chromium layers of different thicknesses (1, 2, and 5 nm). Solvent annealing processes allow the structural control of the BCP films morphology by rearranging the position of the PEO cylinders parallel to the substrate plane. High-vacuum scanning thermal microscopy and ultrasonic force microscopy measurements performed in ambient pressure revealed that coated ultrathin metal layers strongly influence the heat dissipation in the BCP films and the local surface stiffness of the individual BCP domains, respectively. The measured tip-sample effective thermal resistance decreases from 6.1 × 107 to 2.5 × 107 K W-1 with increasing Cr film thickness. In addition, scanning probe microscopy measurements allow the thermal and mechanical mapping of the two segregated polymer domains (PEO-PS) of sub-50 nm characteristic sizes, with sub-10 nm thermal spatial resolution. The results revealed the effect of the surface morphology of the BCP and the incorporation of the metal film on the nanoscale thermal properties and volume self-assembly on the mechanical properties. The findings from this study provide insight into the formation of high aspect ratio BCP-metal structures with the more established applications in lithography. In addition, knowledge of the thermal and mechanical properties at the nanoscale is required in emergent applications, where BCPs, or polymers in general, are part of the structure or device. The performance of such devices is commonly related to the requirement of increased heat dissipation while maintaining mechanical flexibility. |
| publishDate |
2020 |
| dc.date.none.fl_str_mv |
2 2020-01-01 2020 2020-01-01 |
| dc.type.none.fl_str_mv |
Article http://purl.org/coar/resource_type/c_6501 SMUR http://purl.org/coar/version/c_71e4c1898caa6e32 |
| dc.type.openaire.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.none.fl_str_mv |
https://ddd.uab.cat/record/251013 https://dx.doi.org/urn:doi:10.1021/acsapm.9b00924 |
| url |
https://ddd.uab.cat/record/251013 https://dx.doi.org/urn:doi:10.1021/acsapm.9b00924 |
| 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 604668 Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 SEV-2017-0706 Ministerio de Economía y Competitividad https://doi.org/10.13039/501100003329 FIS2015-70862-P Agència de Gestió d'Ajuts Universitaris i de Recerca https://doi.org/10.13039/501100003030 2017/SGR-806 |
| dc.rights.none.fl_str_mv |
open access http://purl.org/coar/access_right/c_abf2 https://rightsstatements.org/vocab/InC/1.0/ |
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info:eu-repo/semantics/openAccess |
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open access http://purl.org/coar/access_right/c_abf2 https://rightsstatements.org/vocab/InC/1.0/ |
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openAccess |
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application/pdf |
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reponame:Dipòsit Digital de Documents de la UAB instname:Universitat Autònoma de Barcelona |
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Universitat Autònoma de Barcelona |
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