中国科学院化学研究所机构知识库
Advanced  
ICCAS OpenIR  > 其它  > 期刊论文
题名: Defect-Free Perpendicular Diblock Copolymer Films: The Synergy Effect of Surface Topography and Chemistry
作者: Man, Xingkun1, 2; Zhou, Pan3; Tang, Jiuzhou4; Yan, Dadong3; Andelman, David5, 6
刊名: MACROMOLECULES
发表日期: 2016-11-08
卷: 49, 期:21, 页:8241-8248
收录类别: SCI
英文摘要: We 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.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35705
Appears in Collections:其它_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Beihang Univ, Ctr Soft Matter Phys & Its Applicat, Beijing 100191, Peoples R China
2.Beihang Univ, Sch Phys & Nucl Energy Engn, Beijing 100191, Peoples R China
3.Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
4.Chinese Acad Sci, Joint Lab Polymer Sci & Mat, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
5.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China
6.Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Man, Xingkun]'s Articles
[Zhou, Pan]'s Articles
[Tang, Jiuzhou]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Man, Xingkun]‘s Articles
[Zhou, Pan]‘s Articles
[Tang, Jiuzhou]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2017  中国科学院化学研究所 - Feedback
Powered by CSpace