skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Block copolymer templated self-assembly of disk-shaped molecules

Abstract

Stacking of disk-shaped organic molecules is a promising strategy to develop electronic and photovoltaic devices. Here, we investigate the capability of a soft block copolymer matrix that microphase separates into a cylindrical phase to direct the self-assembly of disk-shaped molecules by means of molecular simulations. We show that two disk molecules confined in the cylinder domain experience a depletion force, induced by the polymer chains, which results in the formation of stacks of disks. This entropic interaction and the soft confinement provided by the matrix are both responsible for the structures that can be self-assembled, which include slanted or columnar stacks. In addition, we evidence the transmission of stresses between the different minority domains of the microphase, which results in the establishment of a long-ranged interaction between disk molecules embedded in different domains; this interaction is of the order of the microphase periodicity and may be exploited to direct assembly of disks at larger scales.

Authors:
 [1];  [1]
  1. Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
Publication Date:
Research Org.:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1535327
Alternate Identifier(s):
OSTI ID: 1374095
Grant/Contract Number:  
SC0010428
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Chemical Physics
Additional Journal Information:
Journal Volume: 147; Journal Issue: 5; Journal ID: ISSN 0021-9606
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
Chemistry; Physics

Citation Formats

Aragones, J. L., and Alexander-Katz, A. Block copolymer templated self-assembly of disk-shaped molecules. United States: N. p., 2017. Web. doi:10.1063/1.4993210.
Aragones, J. L., & Alexander-Katz, A. Block copolymer templated self-assembly of disk-shaped molecules. United States. doi:10.1063/1.4993210.
Aragones, J. L., and Alexander-Katz, A. Mon . "Block copolymer templated self-assembly of disk-shaped molecules". United States. doi:10.1063/1.4993210. https://www.osti.gov/servlets/purl/1535327.
@article{osti_1535327,
title = {Block copolymer templated self-assembly of disk-shaped molecules},
author = {Aragones, J. L. and Alexander-Katz, A.},
abstractNote = {Stacking of disk-shaped organic molecules is a promising strategy to develop electronic and photovoltaic devices. Here, we investigate the capability of a soft block copolymer matrix that microphase separates into a cylindrical phase to direct the self-assembly of disk-shaped molecules by means of molecular simulations. We show that two disk molecules confined in the cylinder domain experience a depletion force, induced by the polymer chains, which results in the formation of stacks of disks. This entropic interaction and the soft confinement provided by the matrix are both responsible for the structures that can be self-assembled, which include slanted or columnar stacks. In addition, we evidence the transmission of stresses between the different minority domains of the microphase, which results in the establishment of a long-ranged interaction between disk molecules embedded in different domains; this interaction is of the order of the microphase periodicity and may be exploited to direct assembly of disks at larger scales.},
doi = {10.1063/1.4993210},
journal = {Journal of Chemical Physics},
number = 5,
volume = 147,
place = {United States},
year = {2017},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:

Works referenced in this record:

Block Copolymer Nanocomposites: Perspectives for Tailored Functional Materials
journal, June 2005

  • Bockstaller, M. R.; Mickiewicz, R. A.; Thomas, E. L.
  • Advanced Materials, Vol. 17, Issue 11, p. 1331-1349
  • DOI: 10.1002/adma.200500167

Nanoparticle-Induced Phase Transitions in Diblock-Copolymer Films
journal, November 2005

  • Kim, B. J.; Chiu, J. J.; Yi, G.-R.
  • Advanced Materials, Vol. 17, Issue 21, p. 2618-2622
  • DOI: 10.1002/adma.200500502