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Man, XK; Zhou, P; Tang, JZ; Yan, DD; Andelman, D; Man, XK (reprint author), Beihang Univ, Ctr Soft Matter Phys & Its Applicat, Beijing 100191, Peoples R China.; Man, XK (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China.; Andelman, D (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Andelman, D (reprint author), Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
Defect-Free Perpendicular Diblock Copolymer Films: The Synergy Effect of Surface Topography and Chemistry
Source PublicationMACROMOLECULES
Language英语
AbstractWe propose a directed self-assembly mechanism toward obtaining defect-free perpendicular lamellar phases of diblock copolymer (BCP) thin films. In our numerical study, a thin BCP film having a flat top surface is cast on a unidirectional corrugated solid substrate. The substrate is treated chemically and has a weak preference toward one of the two BCP components. Employing self-consistent field theory (SCFT), we find that there is an enhanced synergy between two substrate characteristics: its topography (geometrical roughness) combined with a weak surface preference. This synergy produces the desired perpendicular lamellar phase with perfect in-plane ordering. Defect-free BCP lamellar phases are reproducible for several random initial states and are obtained for a range of substrate roughness and chemical characteristics, even for a unidirectional multimode substrate roughness. Our theoretical study suggests possible experiments that will explore the interplay between unidirectional substrate corrugation and chemical surface treatment. It may lead to viable and economical ways of obtaining BCP films with defect-free lateral alignment.
2016
Volume49Issue:21Pages:8241-8248
Subject AreaPolymer Science
DOIhttp://dx.doi.org/10.1021/acs.macromol.6b01814
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China (NSFC) [21404003, 21434001] ; National Natural Science Foundation of China (NSFC) [21404003, 21434001] ; National Natural Science Foundation of China (NSFC) [21404003, 21434001] ; National Natural Science Foundation of China (NSFC) [21404003, 21434001] ; joint NSFC-ISF Research Program ; joint NSFC-ISF Research Program ; joint NSFC-ISF Research Program ; joint NSFC-ISF Research Program ; NSFC [51561145002] ; NSFC [51561145002] ; NSFC [51561145002] ; NSFC [51561145002] ; Israel Science Foundation (ISF) [885/15, 438/12] ; Israel Science Foundation (ISF) [885/15, 438/12] ; Israel Science Foundation (ISF) [885/15, 438/12] ; Israel Science Foundation (ISF) [885/15, 438/12] ; United States-Israel Binational Science Foundation (BSF) [2012/060] ; United States-Israel Binational Science Foundation (BSF) [2012/060] ; United States-Israel Binational Science Foundation (BSF) [2012/060] ; United States-Israel Binational Science Foundation (BSF) [2012/060] ; CAS President's International Fellowship Initiative (PIFI) ; CAS President's International Fellowship Initiative (PIFI) ; CAS President's International Fellowship Initiative (PIFI) ; CAS President's International Fellowship Initiative (PIFI)
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/21487
Collection理论物理所科研产出_SCI论文
Corresponding AuthorMan, XK (reprint author), Beihang Univ, Ctr Soft Matter Phys & Its Applicat, Beijing 100191, Peoples R China.; Man, XK (reprint author), Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China.; Andelman, D (reprint author), Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Andelman, D (reprint author), Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
Recommended Citation
GB/T 7714
Man, XK,Zhou, P,Tang, JZ,et al. Defect-Free Perpendicular Diblock Copolymer Films: The Synergy Effect of Surface Topography and Chemistry[J]. MACROMOLECULES,2016,49(21):8241-8248.
APA Man, XK.,Zhou, P.,Tang, JZ.,Yan, DD.,Andelman, D.,...&Andelman, D .(2016).Defect-Free Perpendicular Diblock Copolymer Films: The Synergy Effect of Surface Topography and Chemistry.MACROMOLECULES,49(21),8241-8248.
MLA Man, XK,et al."Defect-Free Perpendicular Diblock Copolymer Films: The Synergy Effect of Surface Topography and Chemistry".MACROMOLECULES 49.21(2016):8241-8248.
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