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Title: Double-Layer Morphologies from a Silicon-Containing ABA Triblock Copolymer

Journal Article · · ACS Nano

A combined experimental and self-consistent-field theoretical (SCFT) investigation of the phase behavior of poly(stryrene-b-dimethylsiloxane-b-styrene) (PS-b-PDMS-b-PS, or SDS32) thin films during solvent vapor annealing is presented. The morphology of the triblock copolymer is described as a function of the as-cast film thickness and the ratio of two different solvent vapors, toluene and heptane. SDS32 formed terraced bilayer morphologies even when the film thickness was much lower than the commensurate thickness. The morphology transitioned between bilayer cylinders, bilayer perforated lamellae, and bilayer lamellae, including mixed structures such as a perforated lamella on top of a layer of in-plane cylinders, as the heptane fraction during solvent annealing increased. SCFT modeling showed the same morphological trends as a function of the block volume fraction. In comparison with diblock PS-b-PDMS with the same molecular weight, the SDS32 offers a simple route to produce a diversity of well-ordered bilayer structures with smaller feature sizes, including the formation of bilayer perforated lamellae over a large process window.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; National Science Foundation (NSF)
Grant/Contract Number:
SC0012704; DMR-1606911; DMR-1419807; ER46919
OSTI ID:
1467847
Report Number(s):
BNL-208016-2018-JAAM
Journal Information:
ACS Nano, Vol. 12, Issue 6; ISSN 1936-0851
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 19 works
Citation information provided by
Web of Science

References (58)

Block Copolymer Lithography: Periodic Arrays of 1011 Holes in 1 Square Centimeter journal May 1997
Block Copolymer Self-Assembly–Directed Single-Crystal Homo- and Heteroepitaxial Nanostructures journal October 2010
Block Copolymers as a Tool for Nanomaterial Fabrication journal October 2003
Evolution of Block Copolymer Lithography to Highly Ordered Square Arrays journal October 2008
Formation of a Cobalt Magnetic Dot Array via Block Copolymer Lithography journal August 2001
Highly Tunable Self-Assembled Nanostructures from a Poly(2-vinylpyridine- b -dimethylsiloxane) Block Copolymer journal October 2011
Magnetic nanostructures from block copolymer lithography: Hysteresis, thermal stability, and magnetoresistance journal August 2004
Ultrahigh-Density Nanowire Arrays Grown in Self-Assembled Diblock Copolymer Templates journal December 2000
Universal Block Copolymer Lithography for Metals, Semiconductors, Ceramics, and Polymers journal May 2008
Densely Packed Arrays of Ultra-High-Aspect-Ratio Silicon Nanowires Fabricated using Block-Copolymer Lithography and Metal-Assisted Etching journal August 2009
Nanoporous Block Copolymer Membranes for Ultrafiltration: A Simple Approach to Size Tunability journal November 2014
Nanoporous Membranes Derived from Block Copolymers: From Drug Delivery to Water Filtration journal June 2010
Robust Superhydrophobicity in Large-Area Nanostructured Surfaces Defined by Block-Copolymer Self Assembly journal October 2013
Block copolymer self-assembly for nanophotonics journal January 2015
Self-Assembly Approaches to Three-Dimensional Photonic Crystals journal March 2001
Structural Color for Additive Manufacturing: 3D-Printed Photonic Crystals from Block Copolymers journal February 2017
Novel Inorganic−Organic Hybrid Block Copolymers as Pore Generators for Nanoporous Ultralow-Dielectric-Constant Films journal January 2005
Density Multiplication and Improved Lithography by Directed Block Copolymer Assembly journal August 2008
Bit patterned media based on block copolymer directed assembly with narrow magnetic switching field distribution journal February 2010
Graphene nanomesh journal February 2010
Directed self-assembly of block copolymer films on atomically-thin graphene chemical patterns journal August 2016
The Limits of Lamellae-Forming PS- b -PMMA Block Copolymers for Lithography journal June 2015
Self-Registered Self-Assembly of Block Copolymers journal July 2017
Graphoepitaxy of Self-Assembled Block Copolymers on Two-Dimensional Periodic Patterned Templates journal August 2008
Nanostructure engineering by templated self-assembly of block copolymers journal October 2004
Epitaxial self-assembly of block copolymers on lithographically defined nanopatterned substrates journal July 2003
Phase Behavior in Thin Films of Cylinder-Forming Block Copolymers journal June 2002
Block Copolymer Thermodynamics: Theory and Experiment journal October 1990
Theory of the Interface between Immiscible Polymers. II journal April 1972
Morphology Control in Block Copolymer Films Using Mixed Solvent Vapors journal August 2012
Solvothermal Annealing of Block Copolymer Thin Films journal October 2013
Transient laser heating induced hierarchical porous structures from block copolymer–directed self-assembly journal July 2015
Sub-10-nm patterning via directed self-assembly of block copolymer films with a vapour-phase deposited topcoat journal March 2017
Interfacial Energy-Controlled Top Coats for Gyroid/Cylinder Phase Transitions of Polystyrene- block -polydimethylsiloxane Block Copolymer Thin Films journal May 2017
Highly Ordered Nanoring Arrays Formed by Templated Si-Containing Triblock Terpolymer Thin Films journal January 2017
Self-assembly of functional nanostructures from ABC triblock copolymers journal October 2003
Miktoarm star polymers: advances in synthesis, self-assembly, and applications journal January 2010
Graft-through Synthesis and Assembly of Janus Bottlebrush Polymers from A- Branch -B Diblock Macromonomers journal September 2016
Effects of Grafting Density on Block Polymer Self-Assembly: From Linear to Bottlebrush journal September 2017
Directed Self-Assembly of Triblock Copolymer on Chemical Patterns for Sub-10-nm Nanofabrication via Solvent Annealing journal July 2016
Unexpected Consequences of Block Polydispersity on the Self-Assembly of ABA Triblock Copolymers journal February 2012
Directed Assembly of Non-equilibrium ABA Triblock Copolymer Morphologies on Nanopatterned Substrates journal May 2012
Directed Self-Assembly of Poly(2-vinylpyridine)- b -polystyrene- b -poly(2-vinylpyridine) Triblock Copolymer with Sub-15 nm Spacing Line Patterns Using a Nanoimprinted Photoresist Template journal June 2015
Systematic Study on the Effect of Solvent Removal Rate on the Morphology of Solvent Vapor Annealed ABA Triblock Copolymer Thin Films journal December 2011
Spatial and Orientation Control of Cylindrical Nanostructures in ABA Triblock Copolymer Thin Films by Raster Solvent Vapor Annealing journal October 2012
Robust Block Copolymer Mask for Nanopatterning Polymer Films journal March 2010
Conversion of Bilayers of PS- b -PDMS Block Copolymer into Closely Packed, Aligned Silica Nanopatterns journal May 2013
Universal pattern transfer methods for metal nanostructures by block copolymer lithography journal August 2015
In Situ Characterization of the Self-Assembly of a Polystyrene–Polydimethylsiloxane Block Copolymer during Solvent Vapor Annealing journal November 2015
Orientation-Controlled Self-Assembled Nanolithography Using a Polystyrene−Polydimethylsiloxane Block Copolymer journal July 2007
Equilibrium behavior of symmetric ABA triblock copolymer melts journal October 1999
Morphology, directed self-assembly and pattern transfer from a high molecular weight polystyrene-block-poly(dimethylsiloxane) block copolymer film journal March 2017
Thin Film Morphologies of Bulk-Gyroid Polystyrene- block -polydimethylsiloxane under Solvent Vapor Annealing journal August 2014
Engineering the surface structure of MoS2 to preferentially expose active edge sites for electrocatalysis journal October 2012
Efficient Electrochromic Devices Made from 3D Nanotubular Gyroid Networks journal December 2012
Field-Theoretic Computer Simulation Methods for Polymers and Complex Fluids journal January 2002
Synthesis, molecular characterization and self-assembly of (PS-b-PDMS) n type linear (n = 1, 2) and star (n = 3, 4) block copolymers journal January 2017
Efficient computation of the structural phase behavior of block copolymers journal April 2002

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