Document Detail


Deterministic assembly of channeling cracks as a tool for nanofabrication.
MedLine Citation:
PMID:  20032555     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
To address the necessity for a predictive computational tool for layout design in crack lithography, a tool for nanowire fabrication, a computational study is carried out using finite element analysis, where crack-free edge and crack-crack interactions are studied for various material combinations. While the first scenario addresses the ability to induce a controlled curvature in a nanowire, the latter provides an estimation of the minimum distance which can be kept between two straight nanowires. The computational study is accompanied by an experimental demonstration on Si/SiO2 multilayers. Finite element results are found to be well aligned with experimental observations and theoretical predictions. Stronger interaction is evident with a curved crack front modeling as well as with increasing first and decreasing second Dundurs' parameters. Therefore cracks can be packed closer with decreasing film stiffness.
Authors:
B Erdem Alaca; Can Ozcan; Gunay Anlas
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-12-24
Journal Detail:
Title:  Nanotechnology     Volume:  21     ISSN:  1361-6528     ISO Abbreviation:  Nanotechnology     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-01-06     Completed Date:  2010-03-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101241272     Medline TA:  Nanotechnology     Country:  England    
Other Details:
Languages:  eng     Pagination:  055301     Citation Subset:  -    
Affiliation:
Department of Mechanical Engineering, Koc University, Rumeli Feneri Yolu, 34450 Sariyer, Istanbul, Turkey. ealaca@ku.edu.tr
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