Special Issue "Mechanics, Electrical and Optical Properties of Nano-Thin Films"

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: 30 August 2018

Special Issue Editors

Guest Editor
Prof. Dr. Luca Valentini

Universita degli Studi di Perugia, Perugia, Italy
Website | E-Mail
Phone: +39-0744-492924
Fax: +39-0744-492950
Interests: polymer nanocomposites; thin films; nanostructured carbon
Guest Editor
Prof. Dr. Nicola Pugno

Universita degli Studi di Trento, Department of Civil, Trento, Italy
Website | E-Mail
Phone: +39-0461-282525
Fax: +39 0461 282599
Interests: nanomechanics; nanomaterials; bioinspired materials

Special Issue Information

Dear Colleagues,

The integration demand of multifunctional properties in thin films is challenging, since some of them are mutually exclusive; for example, the mechanisms that operate during material deformation make stretchability and conductivity fundamentally difficult properties to combine. Thus, innovative solutions enabling the production of unexpected optical, mechanical and electrical functions are required. A broad range of optically and electrically anisotropic thin film devices can be produced by surface texturing, surface corrugations and mechanical stretching. In this Special Issue we would invite authors to contribute with their innovative contributions in terms of research papers, communications, letters and reviews on thin films based on nanomaterials that demonstrate electrical and optical tunability under mechanical stress, including self-organization of conductive nanostructures with the strain, and hybrid nanocomposite thin films with recoverable control of the electrical and optical properties by mechanical actuation. Potential methods include but are not limited to layer-by-layer assembly, buckled nanostructures, hybrid nanoarchitectures and controlled disposition of nanoparticles.

Prof. Dr. Luca Valentini
Prof. Dr. Nicola Pugno
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1200 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanomaterials
  • soft nanocomposites
  • electronic applications
  • optical properties
  • stretchable devices
  • nanostructured surfaces

Published Papers (1 paper)

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Research

Open AccessArticle Investigation of Interaction between Dislocation Loop and Coherent Twin Boundary in BCC Ta Film during Nanoindentation
Nanomaterials 2017, 7(11), 375; doi:10.3390/nano7110375
Received: 18 September 2017 / Revised: 24 October 2017 / Accepted: 3 November 2017 / Published: 6 November 2017
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Abstract
In this work, the interaction between dislocation loop (DL) and coherent twin boundary (CTB) in a body-centered cubic (BCC) tantalum (Ta) film during nanoindentation was investigated with molecular dynamics (MD) simulation. The formation and propagation of <111> full DLs in the nanotwinned (nt)
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In this work, the interaction between dislocation loop (DL) and coherent twin boundary (CTB) in a body-centered cubic (BCC) tantalum (Ta) film during nanoindentation was investigated with molecular dynamics (MD) simulation. The formation and propagation of <111> full DLs in the nanotwinned (nt) Ta film during the indentation was observed, and it was found that CTB can strongly affect the stress distribution in the Ta film, and thus change the motion and type of dislocations. There are three kinds of mechanisms for the interaction between DL and CTB in a twinned BCC Ta film: (i) dislocation absorption, (ii) dislocation desorption, and (iii) direct slip transmission. The nucleation of twin boundary dislocations and the formation of the steps in CTB were also observed during the indentation. The mechanisms presented in this work can provide atomic images for understanding the plastic deformation of BCC metals with mirror-symmetry grain boundary structures, and provide available information for the evaluation and design of high-performance nt BCC metallic thin film coatings. Full article
(This article belongs to the Special Issue Mechanics, Electrical and Optical Properties of Nano-Thin Films)
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