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Title: Selective directed self-assembly of coexisting morphologies using block copolymer blends

Abstract

Directed self-assembly (DSA) of block copolymers is an emergent technique for nano-lithography, but is limited in the range of structures possible in a single fabrication step. We expand on traditional DSA chemical patterning. Moreover, a blend of lamellar- and cylinder-forming block copolymers assembles on specially designed surface chemical line gratings, leading to the simultaneous formation of coexisting ordered morphologies in separate areas of the substrate. The competing energetics of polymer chain distortions and chemical mismatch with the substrate grating bias the system towards either line/space or dot array patterns, depending on the pitch and linewidth of the prepattern. This contrasts with typical DSA, wherein assembly of a single-component block copolymer on chemical templates generates patterns of either lines/spaces (lamellar) or hexagonal dot arrays (cylinders). In our approach, the chemical template encodes desired local spatial arrangements of coexisting design motifs, self-assembled from a single, sophisticated resist.

Authors:
 [1];  [1];  [1];  [1];  [1]
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  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1303021
Report Number(s):
BNL-112517-2016-JA
Journal ID: ISSN 2041-1723; KC0403020
Grant/Contract Number:  
SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 7; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY

Citation Formats

Stein, A., Wright, G., Yager, K. G., Doerk, G. S., and Black, C. T. Selective directed self-assembly of coexisting morphologies using block copolymer blends. United States: N. p., 2016. Web. doi:10.1038/ncomms12366.
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Stein, A., Wright, G., Yager, K. G., Doerk, G. S., & Black, C. T. Selective directed self-assembly of coexisting morphologies using block copolymer blends. United States. https://doi.org/10.1038/ncomms12366
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Stein, A., Wright, G., Yager, K. G., Doerk, G. S., and Black, C. T. Tue . "Selective directed self-assembly of coexisting morphologies using block copolymer blends". United States. https://doi.org/10.1038/ncomms12366. https://www.osti.gov/servlets/purl/1303021.
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@article{osti_1303021,
title = {Selective directed self-assembly of coexisting morphologies using block copolymer blends},
author = {Stein, A. and Wright, G. and Yager, K. G. and Doerk, G. S. and Black, C. T.},
abstractNote = {Directed self-assembly (DSA) of block copolymers is an emergent technique for nano-lithography, but is limited in the range of structures possible in a single fabrication step. We expand on traditional DSA chemical patterning. Moreover, a blend of lamellar- and cylinder-forming block copolymers assembles on specially designed surface chemical line gratings, leading to the simultaneous formation of coexisting ordered morphologies in separate areas of the substrate. The competing energetics of polymer chain distortions and chemical mismatch with the substrate grating bias the system towards either line/space or dot array patterns, depending on the pitch and linewidth of the prepattern. This contrasts with typical DSA, wherein assembly of a single-component block copolymer on chemical templates generates patterns of either lines/spaces (lamellar) or hexagonal dot arrays (cylinders). In our approach, the chemical template encodes desired local spatial arrangements of coexisting design motifs, self-assembled from a single, sophisticated resist.},
doi = {10.1038/ncomms12366},
journal = {Nature Communications},
number = ,
volume = 7,
place = {United States},
year = {Tue Aug 02 00:00:00 EDT 2016},
month = {Tue Aug 02 00:00:00 EDT 2016}
}
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https://doi.org/10.1038/ncomms12366
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    Works referencing / citing this record:

    Non-native three-dimensional block copolymer morphologies
    journal, December 2016

    • Rahman, Atikur; Majewski, Pawel W.; Doerk, Gregory
    • Nature Communications, Vol. 7, Issue 1
    • DOI: 10.1038/ncomms13988

    Photothermally Directed Assembly of Block Copolymers
    journal, December 2019

    • Nowak, Samantha R.; Yager, Kevin G.
    • Advanced Materials Interfaces, Vol. 7, Issue 5
    • DOI: 10.1002/admi.201901679

    Non-native three-dimensional block copolymer morphologies
    journal, December 2016

    • Rahman, Atikur; Majewski, Pawel W.; Doerk, Gregory
    • Nature Communications, Vol. 7, Issue 1
    • DOI: 10.1038/ncomms13988

    Simultaneous fabrication of line and dot dual nanopatterns using miktoarm block copolymer with photocleavable linker
    journal, November 2017

    • Choi, Chungryong; Park, Jichoel; Vincent Joseph, Kanniyambatti L.
    • Nature Communications, Vol. 8, Issue 1
    • DOI: 10.1038/s41467-017-02019-9
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