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Title: Periodic nanoscale patterning of polyelectrolytes over square centimeter areas using block copolymer templates

Abstract

Nano-patterned materials are beneficial for applications such as solar cells, opto-electronics, and sensing owing to their periodic structure and high interfacial area. We present a non-lithographic approach for assembling polyelectrolytes into periodic nanoscale patterns over cm 2 -scale areas. We used chemically modified block copolymer thin films featuring alternating charged and neutral domains as patterned substrates for electrostatic self-assembly. In-depth characterization of the deposition process using spectroscopy and microscopy techniques, including the state-of-the-art scanning transmission X-ray microscopy (STXM), reveals both the selective deposition of the polyelectrolyte on the charged copolymer domains as well as gradual changes in the film topography that arise from further penetration of the solvent molecules and possibly also the polyelectrolyte into these domains. Our results demonstrate the feasibility of creating nano-patterned polyelectrolyte layers, which opens up new opportunities for structured functional coating fabrication.

Authors:
 [1];  [2];  [2];  [3];  [1]
  1. Hebrew Univ. of Jerusalem (Israel). Inst. of Chemistry and the Center for Nanoscience and Nanotechnology
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Chemical Sciences Division
  3. Johannes Gutenberg Univ., Mainz (Germany). Inst. of Organic Chemistry
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1378715
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Soft Matter
Additional Journal Information:
Journal Volume: 12; Journal Issue: 20; Journal ID: ISSN 1744-683X
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; block copolymers; layer-by-layer deposition; patterning; polyelectrolytes; self-assembly

Citation Formats

Oded, Meirav, Kelly, Stephen T., Gilles, Mary K., Müller, Axel H. E., and Shenhar, Roy. Periodic nanoscale patterning of polyelectrolytes over square centimeter areas using block copolymer templates. United States: N. p., 2016. Web. doi:10.1039/c6sm00381h.
Oded, Meirav, Kelly, Stephen T., Gilles, Mary K., Müller, Axel H. E., & Shenhar, Roy. Periodic nanoscale patterning of polyelectrolytes over square centimeter areas using block copolymer templates. United States. doi:10.1039/c6sm00381h.
Oded, Meirav, Kelly, Stephen T., Gilles, Mary K., Müller, Axel H. E., and Shenhar, Roy. Thu . "Periodic nanoscale patterning of polyelectrolytes over square centimeter areas using block copolymer templates". United States. doi:10.1039/c6sm00381h. https://www.osti.gov/servlets/purl/1378715.
@article{osti_1378715,
title = {Periodic nanoscale patterning of polyelectrolytes over square centimeter areas using block copolymer templates},
author = {Oded, Meirav and Kelly, Stephen T. and Gilles, Mary K. and Müller, Axel H. E. and Shenhar, Roy},
abstractNote = {Nano-patterned materials are beneficial for applications such as solar cells, opto-electronics, and sensing owing to their periodic structure and high interfacial area. We present a non-lithographic approach for assembling polyelectrolytes into periodic nanoscale patterns over cm 2 -scale areas. We used chemically modified block copolymer thin films featuring alternating charged and neutral domains as patterned substrates for electrostatic self-assembly. In-depth characterization of the deposition process using spectroscopy and microscopy techniques, including the state-of-the-art scanning transmission X-ray microscopy (STXM), reveals both the selective deposition of the polyelectrolyte on the charged copolymer domains as well as gradual changes in the film topography that arise from further penetration of the solvent molecules and possibly also the polyelectrolyte into these domains. Our results demonstrate the feasibility of creating nano-patterned polyelectrolyte layers, which opens up new opportunities for structured functional coating fabrication.},
doi = {10.1039/c6sm00381h},
journal = {Soft Matter},
number = 20,
volume = 12,
place = {United States},
year = {2016},
month = {4}
}

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