Simulation methods for solvent vapor annealing of block copolymer thin films

Recent progress in modelling the solvent vapor annealing of thin film block copolymers is examined in the context of a self-consistent field theory framework. Key control variables in determining the final microdomain morphologies include swelling ratio or swollen film solvent volume fraction, swoll...

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Main Authors: Hannon, Adam F., Bai, Wubin, Alexander-Katz, Alfredo, Ross, Caroline A.
Other Authors: Massachusetts Institute of Technology. Department of Materials Science and Engineering
Format: Article
Language:en_US
Published: Royal Society of Chemistry 2016
Online Access:http://hdl.handle.net/1721.1/101738
https://orcid.org/0000-0002-8554-6998
https://orcid.org/0000-0003-2262-1249
https://orcid.org/0000-0001-5554-1283
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author Hannon, Adam F.
Bai, Wubin
Alexander-Katz, Alfredo
Ross, Caroline A.
author2 Massachusetts Institute of Technology. Department of Materials Science and Engineering
author_facet Massachusetts Institute of Technology. Department of Materials Science and Engineering
Hannon, Adam F.
Bai, Wubin
Alexander-Katz, Alfredo
Ross, Caroline A.
author_sort Hannon, Adam F.
collection MIT
description Recent progress in modelling the solvent vapor annealing of thin film block copolymers is examined in the context of a self-consistent field theory framework. Key control variables in determining the final microdomain morphologies include swelling ratio or swollen film solvent volume fraction, swollen film thickness, substrate and vapor atmosphere surface energies, effective volume fraction, and effective Flory–Huggins interaction parameter. The regime of solvent vapor annealing studied is where the block copolymer has a high enough Flory–Huggins parameter that ordered structures form during swelling and are then trapped in the system through quenching. Both implicit and explicit consideration of the solvent vapor is considered to distinguish the cases in which solvent vapor leads to a non-bulk morphology. Block-selective solvents are considered based on the experimental systems of polystyrene-b-polydimethylsiloxane annealed with toluene and heptane. The results of these simulations are compared with these experiments.
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spelling mit-1721.1/1017382022-09-29T16:49:25Z Simulation methods for solvent vapor annealing of block copolymer thin films Hannon, Adam F. Bai, Wubin Alexander-Katz, Alfredo Ross, Caroline A. Massachusetts Institute of Technology. Department of Materials Science and Engineering Hannon, Adam F. Bai, Wubin Alexander-Katz, Alfredo Ross, Caroline A. Recent progress in modelling the solvent vapor annealing of thin film block copolymers is examined in the context of a self-consistent field theory framework. Key control variables in determining the final microdomain morphologies include swelling ratio or swollen film solvent volume fraction, swollen film thickness, substrate and vapor atmosphere surface energies, effective volume fraction, and effective Flory–Huggins interaction parameter. The regime of solvent vapor annealing studied is where the block copolymer has a high enough Flory–Huggins parameter that ordered structures form during swelling and are then trapped in the system through quenching. Both implicit and explicit consideration of the solvent vapor is considered to distinguish the cases in which solvent vapor leads to a non-bulk morphology. Block-selective solvents are considered based on the experimental systems of polystyrene-b-polydimethylsiloxane annealed with toluene and heptane. The results of these simulations are compared with these experiments. National Science Foundation (U.S.) (Award CMMI 1246740) Taiwan Semiconductor Manufacturing Company Tokyo Electron Limited Semiconductor Research Corporation 2016-03-18T14:38:15Z 2016-03-18T14:38:15Z 2015-03 2015-02 Article http://purl.org/eprint/type/JournalArticle 1744-683X 1744-6848 http://hdl.handle.net/1721.1/101738 Hannon, A. F., W. Bai, A. Alexander-Katz, and C. A. Ross. “Simulation Methods for Solvent Vapor Annealing of Block Copolymer Thin Films.” Soft Matter 11, no. 19 (2015): 3794–3805. © 2015 The Royal Society of Chemistry https://orcid.org/0000-0002-8554-6998 https://orcid.org/0000-0003-2262-1249 https://orcid.org/0000-0001-5554-1283 en_US http://dx.doi.org/10.1039/c5sm00324e Soft Matter Creative Commons Attribution 3.0 Unported licence http://creativecommons.org/licenses/by/3.0/ application/pdf Royal Society of Chemistry Royal Society of Chemistry
spellingShingle Hannon, Adam F.
Bai, Wubin
Alexander-Katz, Alfredo
Ross, Caroline A.
Simulation methods for solvent vapor annealing of block copolymer thin films
title Simulation methods for solvent vapor annealing of block copolymer thin films
title_full Simulation methods for solvent vapor annealing of block copolymer thin films
title_fullStr Simulation methods for solvent vapor annealing of block copolymer thin films
title_full_unstemmed Simulation methods for solvent vapor annealing of block copolymer thin films
title_short Simulation methods for solvent vapor annealing of block copolymer thin films
title_sort simulation methods for solvent vapor annealing of block copolymer thin films
url http://hdl.handle.net/1721.1/101738
https://orcid.org/0000-0002-8554-6998
https://orcid.org/0000-0003-2262-1249
https://orcid.org/0000-0001-5554-1283
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