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Nanomaterials
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Piezoelectric Nanomaterials
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Piezoelectric Nanomaterials

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

Deadline for manuscript submissions: closed (31 October 2016) | Viewed by 13600

Special Issue Editors

Prof. Dr. Liying Jiang

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Guest Editor
Department of Mechanical and Materials Engineering, University of Western Ontario, London, ON N6A 5B6, Canada
Interests: multi-physics modeling; piezoelectric materials; composites; dielectric elastomers; finite element analysis; micromechanics; nanomechanics
Prof. Dr. Zhi Yan

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Guest Editor
School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan, China
Interests: smart materials and structures; micro and nanomechanics
Prof. Dr. Rusen Yang

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Department of Mechanical Engineering, University of Minnesota, 111 Church Street SE, Minneapolis, MN 55455, USA
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Yong Qin

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Guest Editor
Institute of Nanoscience and Nanotechnology, School of Physical Science and Technology, Lanzhou University, 222 South Tianshui Road, Lanzhou 730000, China
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Piezoelectric materials are smart materials that exhibit unique electromechanical coupling, which enables engineering designs to have more innovative features and functions. Piezoelectric nanomaterials have recently received growing interest with the miniaturization of electromechanical devices down to submicro- or nano-scales. These novel materials are particularly attractive for applications in energy harvesting, sensing, actuating, and among others. To achieve the optimal performance of these materials in their potential applications, it is essential to fully understand the underlying physics and mechanisms governing their size-dependent electromechanical coupling, which is believed to attribute to both surface effects and flexoelectricity.

This Special Issue will focus on recent advancements in the modeling and simulation of piezoelectric nanomaterials. We invite submissions of original research articles or comprehensive reviews on, but not limited to, continuum mechanics, finite element and atomistic modeling and simulation on the mechanical and physical properties of piezoelectric nanomaterials and their applications.

Prof. Dr. Liying Jiang
Prof. Dr. Zhi Yan
Prof. Dr. Rusen Yang
Prof. Dr. Yong Qin
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 submissions that pass pre-check are 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 semimonthly 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 2900 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

  • piezoelectric nanomaterials
  • electromechanical coupling
  • size-dependent properties
  • surface effects
  • flexoelectricity

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Published Papers (2 papers)

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Research

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1730 KiB  
Article
Vibration of Piezoelectric ZnO-SWCNT Nanowires
by Yao Xiao, Chengyuan Wang and Yuantian Feng
Nanomaterials 2016, 6(12), 242; https://doi.org/10.3390/nano6120242 - 15 Dec 2016
Cited by 3 | Viewed by 4715
Abstract
A hybrid nanowire (HNW) was constructed by coating a single-wall carbon nanotube (SWCNT) with piezoelectric zinc oxide (ZnO). The two components of the HNW interact with each other via the van der Waals (vdW) force. This paper aims to study the effect of [...] Read more.
A hybrid nanowire (HNW) was constructed by coating a single-wall carbon nanotube (SWCNT) with piezoelectric zinc oxide (ZnO). The two components of the HNW interact with each other via the van der Waals (vdW) force. This paper aims to study the effect of the piezoelectricity in the ZnO layer and the inter-phase vdW interaction on the fundamental vibration of the HNWs. In doing this, a new model was developed where the two components of the HNWs were modeled as Euler beams coupled via the interphase vdW interaction. Based on the model, the dependence of the frequency on an applied electrical voltage was calculated for HNWs of different geometric sizes to reveal the voltage effect. The results were then compared with those calculated without considering the inter-phase vdW interaction. It was found that the interphase vdW interaction can substantially decrease the structural stiffness, leading to a greatly enhanced piezoelectric effect but a lower frequency for the vibration of the HNWs. Full article
(This article belongs to the Special Issue Piezoelectric Nanomaterials)
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Review

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310 KiB  
Review
Modified Continuum Mechanics Modeling on Size-Dependent Properties of Piezoelectric Nanomaterials: A Review
by Zhi Yan and Liying Jiang
Nanomaterials 2017, 7(2), 27; https://doi.org/10.3390/nano7020027 - 26 Jan 2017
Cited by 59 | Viewed by 8149
Abstract
Piezoelectric nanomaterials (PNs) are attractive for applications including sensing, actuating, energy harvesting, among others in nano-electro-mechanical-systems (NEMS) because of their excellent electromechanical coupling, mechanical and physical properties. However, the properties of PNs do not coincide with their bulk counterparts and depend on the [...] Read more.
Piezoelectric nanomaterials (PNs) are attractive for applications including sensing, actuating, energy harvesting, among others in nano-electro-mechanical-systems (NEMS) because of their excellent electromechanical coupling, mechanical and physical properties. However, the properties of PNs do not coincide with their bulk counterparts and depend on the particular size. A large amount of efforts have been devoted to studying the size-dependent properties of PNs by using experimental characterization, atomistic simulation and continuum mechanics modeling with the consideration of the scale features of the nanomaterials. This paper reviews the recent progresses and achievements in the research on the continuum mechanics modeling of the size-dependent mechanical and physical properties of PNs. We start from the fundamentals of the modified continuum mechanics models for PNs, including the theories of surface piezoelectricity, flexoelectricity and non-local piezoelectricity, with the introduction of the modified piezoelectric beam and plate models particularly for nanostructured piezoelectric materials with certain configurations. Then, we give a review on the investigation of the size-dependent properties of PNs by using the modified continuum mechanics models, such as the electromechanical coupling, bending, vibration, buckling, wave propagation and dynamic characteristics. Finally, analytical modeling and analysis of nanoscale actuators and energy harvesters based on piezoelectric nanostructures are presented. Full article
(This article belongs to the Special Issue Piezoelectric Nanomaterials)
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