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Conventional Nanoindentation in Self-Assembled Monolayers Deposited on Gold and Silver Substrates
Joint Authors
Costelle, Leila
Lind, Liina
Jalkanen, Pasi
Räisänen, Minna T.
Nowak, Roman
Räisänen, Jyrki
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-31
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
Self-assembled monolayers (SAMs) are promising materials for micromechanical applications.
However, characterization of mechanical properties of monolayers is challenging for standard nanoindentation, and new efficient analysis techniques are needed.
Hereby, a conventional nanoindentation method has been combined in a unique way with efficient data analysis based on consumed energy calculation and load-displacement data.
The procedure has been applied on SAMs of 4,4′-biphenyldithiol (BPDT) on Au, 1-tetradecanethiol (TDT), and 1-hexadecanethiol (HDT) on Au and Ag substrates being the first study where SAMs of the same thiols on different substrates are analyzed by nanoindentation providing a new insight into the substrate effects.
Unlike TDT and HDT SAMs, which are found to strongly enhance the homogeneity and stiffness of the underlying substrate, the BPDT covered Au substrate appears softer in mechanical response.
In the case of TDT and HDT SAMs on Ag the structures are softer showing also faster relaxation than the corresponding structures on Au substrate.
The proposed procedure enables a fast and efficient way of assessing the complex behaviour of SAM modified substrates.
As a consequence, the results are relevant to practical issues dependent on layer activity and toughness.
American Psychological Association (APA)
Costelle, Leila& Lind, Liina& Jalkanen, Pasi & Räisänen, Minna T.& Nowak, Roman& Räisänen, Jyrki. 2012. Conventional Nanoindentation in Self-Assembled Monolayers Deposited on Gold and Silver Substrates. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-998256
Modern Language Association (MLA)
Costelle, Leila…[et al.]. Conventional Nanoindentation in Self-Assembled Monolayers Deposited on Gold and Silver Substrates. Journal of Nanomaterials No. 2012 (2012), pp.1-5.
https://search.emarefa.net/detail/BIM-998256
American Medical Association (AMA)
Costelle, Leila& Lind, Liina& Jalkanen, Pasi & Räisänen, Minna T.& Nowak, Roman& Räisänen, Jyrki. Conventional Nanoindentation in Self-Assembled Monolayers Deposited on Gold and Silver Substrates. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-5.
https://search.emarefa.net/detail/BIM-998256
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-998256