Next Article in Journal
Development of Octyl Methoxy Cinnamates (OMC)/Silicon Dioxide (SiO2) Nanoparticles by Sol-Gel Emulsion Method
Previous Article in Journal
Evaluation of the Corrosion Resistance Properties of Electroplated Chitosan-Zn1−xCuxO Composite Thin Films
Previous Article in Special Issue
Fabrication of Semiconductor ZnO Nanostructures for Versatile SERS Application
Article Menu

Export Article

Open AccessArticle
Nanomaterials 2017, 7(12), 430; doi:10.3390/nano7120430

Piezoelectric Potential in Single-Crystalline ZnO Nanohelices Based on Finite Element Analysis

1
Key Lab of Advanced Transducers and Intelligent Control System, Ministry of Education and Shanxi Province, Taiyuan University of Technology, Taiyuan 030024, China
2
Department of Mechanical Engineering, University of Minnesota, Minneapolis, MN 55455, USA
3
Department of Applied Physics, The Hong Kong Polytechnic University, Hong Kong, China
4
School of Advanced Materials and Nanotechnology, Xidian University, Xi’an 710071, China
*
Authors to whom correspondence should be addressed.
Received: 7 October 2017 / Revised: 8 November 2017 / Accepted: 1 December 2017 / Published: 7 December 2017
(This article belongs to the Special Issue ZnO and TiO2 Based Nanostructures)
View Full-Text   |   Download PDF [1155 KB, uploaded 7 December 2017]   |  

Abstract

Electric potential produced in deformed piezoelectric nanostructures is of significance for both fundamental study and practical applications. To reveal the piezoelectric property of ZnO nanohelices, the piezoelectric potential in single-crystal nanohelices was simulated by finite element method calculations. For a nanohelix with a length of 1200 nm, a mean coil radius of 150 nm, five active coils, and a hexagonal coiled wire with a side length 100 nm, a compressing force of 100 nN results in a potential of 1.85 V. This potential is significantly higher than the potential produced in a straight nanowire with the same length and applied force. Maintaining the length and increasing the number of coils or mean coil radius leads to higher piezoelectric potential in the nanohelix. Appling a force along the axial direction produces higher piezoelectric potential than in other directions. Adding lateral forces to an existing axial force can change the piezoelectric potential distribution in the nanohelix, while the maximum piezoelectric potential remains largely unchanged in some cases. This research demonstrates the promising potential of ZnO nanohelices for applications in sensors, micro-electromechanical systems (MEMS) devices, nanorobotics, and energy sciences. View Full-Text
Keywords: piezotronic; numerical simulation; nanohelix; FEM piezotronic; numerical simulation; nanohelix; FEM
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Hao, H.; Jenkins, K.; Huang, X.; Xu, Y.; Huang, J.; Yang, R. Piezoelectric Potential in Single-Crystalline ZnO Nanohelices Based on Finite Element Analysis. Nanomaterials 2017, 7, 430.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Nanomaterials EISSN 2079-4991 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top