Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Effects of surface micro-structures on capacitances of the dielectric layer in triboelectric nanogenerator: a numerical simulation study
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements. Theory of Lubrication and Bearing Institute, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an, 710049 PR China.ORCID iD: 0000-0002-4826-3569
Division of Surface and Corrosion Science, Department of Chemistry, KTH Royal Institute of Technology, Stockholm, SE-100 44, Sweden.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Machine Elements.ORCID iD: 0000-0001-6085-7880
2021 (English)In: Nano Energy, ISSN 2211-2855, E-ISSN 2211-3282, Vol. 79, article id 105432Article in journal (Refereed) Published
Abstract [en]

Triboelectric nanogenerator (TENG) provides a promising approach for energy harvesting and sensing. Micro-structures are often employed at dielectric layer for improving efficiency, but the effects on the electric output performance of TENG are not well understood. In this work, we conduct a numerical simulation study based on the planar capacitor analytical method to study the electric output performance for contact-separation (CS) TENG. Different from previous work, which only investigates the effects on the real contact area, this work also studies the effects of the surface micro-structures on the capacitance and the consequent effects on the electronic output performance. The separation to contact open circuit (OC) output voltage is focused on, which is widely employed for sensor applications. The effects of the capacitance variations on OC output voltages under different elastic modulus and micro-structure geometrical parameters are investigated. The results indicate that the capacitance variations can even lead up to more than 100% deviation of the OC output voltages, which confirms that the effect of the capacitance variations is also an important factor. More importantly, it is found that some existing experimental data cannot be explained/simulated by models without consideration of the capacitance variations, and it is more correct to use the ratio of real contact area to capacitance variations to predict the open circuit output voltage of TENG instead of only using contact area when the micro-structure size is larger than 10 um.

Place, publisher, year, edition, pages
Elsevier, 2021. Vol. 79, article id 105432
Keywords [en]
Triboelectric nanogenerator, TENG, Separation-to-contact, Surface micro-structures, Numerical simulation, Capacitance
National Category
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)
Research subject
Machine Elements
Identifiers
URN: urn:nbn:se:ltu:diva-81074DOI: 10.1016/j.nanoen.2020.105432ISI: 000620325000002Scopus ID: 2-s2.0-85092446550OAI: oai:DiVA.org:ltu-81074DiVA, id: diva2:1474594
Note

Validerad;2020;Nivå 2;2020-10-22 (johcin)

Available from: 2020-10-09 Created: 2020-10-09 Last updated: 2021-03-22Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records

Xi, YinhuShi, Yijun

Search in DiVA

By author/editor
Xi, YinhuShi, Yijun
By organisation
Machine Elements
In the same journal
Nano Energy
Tribology (Interacting Surfaces including Friction, Lubrication and Wear)

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 83 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf