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Title: Tensile properties of polymer nanowires fabricated via two-photon lithography

Journal Article · · RSC Advances
DOI:https://doi.org/10.1039/C9RA02350J· OSTI ID:1562143
 [1];  [2]; ORCiD logo [3]
  1. Center for Engineered Materials & Manufacturing, Lawrence Livermore National Laboratory, Livermore, USA, Department of Mechanical Engineering
  2. Department of Mechanical Engineering, The University of Texas at Austin, Austin, USA
  3. Center for Engineered Materials & Manufacturing, Lawrence Livermore National Laboratory, Livermore, USA, Woodruff School of Mechanical Engineering

Two-photon lithography enables fabrication of complex 3D structures with nanoscale features. However, its utility is limited by the lack of knowledge about the process–property relationship. Here, we have designed micro-electro-mechanical systems (MEMS)-based miniaturized tensile testers to measure the stress–strain response of the individual polymer nanowires. Measurements demonstrate that geometrically indistinguishable nanowires can exhibit widely varying material behavior ranging from brittle to soft plastic based on processing conditions. In addition, a distinct size-scaling effect was observed for post-processed nanowires wherein thinner nanowires have up to 2 times higher properties. The process–property characterization presented here will be critical for predictive design of functional 3D structures with nanoscale features.

Research Organization:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
LDRD-16-ERD-047; AC52-07NA27344
OSTI ID:
1562143
Alternate ID(s):
OSTI ID: 1569664
Report Number(s):
LLNL-JRNL-765187; RSCACL
Journal Information:
RSC Advances, Journal Name: RSC Advances Vol. 9 Journal Issue: 49; ISSN 2046-2069
Publisher:
Royal Society of Chemistry (RSC)Copyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 16 works
Citation information provided by
Web of Science

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Figures / Tables (5)


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