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Realization of direct current piezoelectric nanogenerators developed from p-ZnO:N nanowires / Polytriaryl amine bilayers.

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Title: Realization of direct current piezoelectric nanogenerators developed from p-ZnO:N nanowires / Polytriaryl amine bilayers.
Authors: Ramyashri, S.1 (AUTHOR), Amiruddin, R.1 (AUTHOR) amir@crescent.education
Source: Journal of Power Sources. Feb2026, Vol. 666, pN.PAG-N.PAG. 1p.
Subjects: Nanogenerators, Piezoelectricity, Triboelectricity, Power density, Finite element method, Voltage, Nanowires
Abstract: This research reports the realization of a piezoelectric nanogenerator (PENG) that generates direct current (DC) piezovoltage using p-ZnO nanowires with a randomly aligned morphology. The N(4 at%) doped p-ZnO nanowires exhibit a carrier concentration of 3.30 x 1017/cm3 and an electrical resistivity of 0.96 Ω cm. The p-ZnO:N nanowire-based PENG were grown on a flexible aluminium (Al) foil substrate, producing a DC voltage of 1.1V and 4.1V during finger pressing/releasing and tapping tests, respectively. The free electrons in the p-ZnO:N nanowires recombine with the N O -V Zn acceptor complex to reduce the screening effect of the ZnO nanowires. Surface topography (AFM) analysis under an external force (∼nN) confirms the generation of piezovoltage across randomly aligned p-ZnO nanowires. The morphology-dependent piezovoltage distribution across the ZnO nanowires is further supported by finite element analysis (FEA). To improve performance, organic PTAA thin film layers are stacked on p-ZnO:N nanowires, producing piezovoltage outputs of 11V and 14.9V during finger-press-release and tapping tests, respectively. The p-ZnO:N nanowires/PTAA-based bilayered PENG delivers a power density of 1.78 μW/cm2 under the finger-tapping test. The five-fold increase in piezovoltage output during finger-tapping is attributed to the triboelectric effect, which induces additional surface charges and suppresses screening. [Display omitted] • Piezoelectric nanogenerator (PENG) with DC piezovoltage using randomly aligned p-ZnO nanowires. • The p-ZnO nanowires/PTAA bilayered PENG generated 14.9 V with power density of 1.78 μW/cm2. • FEA analysis supports the morphology-dependent piezovoltage distribution. • Buckling-driven DC voltage generation mechanism in p-ZnO:N nanowires is analyzed. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Power Sources is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 190934428
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Realization of direct current piezoelectric nanogenerators developed from p-ZnO:N nanowires / Polytriaryl amine bilayers.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Ramyashri%2C+S%2E%22">Ramyashri, S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Amiruddin%2C+R%2E%22">Amiruddin, R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> amir@crescent.education</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Power+Sources%22">Journal of Power Sources</searchLink>. Feb2026, Vol. 666, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Nanogenerators%22">Nanogenerators</searchLink><br /><searchLink fieldCode="DE" term="%22Piezoelectricity%22">Piezoelectricity</searchLink><br /><searchLink fieldCode="DE" term="%22Triboelectricity%22">Triboelectricity</searchLink><br /><searchLink fieldCode="DE" term="%22Power+density%22">Power density</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Voltage%22">Voltage</searchLink><br /><searchLink fieldCode="DE" term="%22Nanowires%22">Nanowires</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This research reports the realization of a piezoelectric nanogenerator (PENG) that generates direct current (DC) piezovoltage using p-ZnO nanowires with a randomly aligned morphology. The N(4 at%) doped p-ZnO nanowires exhibit a carrier concentration of 3.30 x 1017/cm3 and an electrical resistivity of 0.96 Ω cm. The p-ZnO:N nanowire-based PENG were grown on a flexible aluminium (Al) foil substrate, producing a DC voltage of 1.1V and 4.1V during finger pressing/releasing and tapping tests, respectively. The free electrons in the p-ZnO:N nanowires recombine with the N O -V Zn acceptor complex to reduce the screening effect of the ZnO nanowires. Surface topography (AFM) analysis under an external force (∼nN) confirms the generation of piezovoltage across randomly aligned p-ZnO nanowires. The morphology-dependent piezovoltage distribution across the ZnO nanowires is further supported by finite element analysis (FEA). To improve performance, organic PTAA thin film layers are stacked on p-ZnO:N nanowires, producing piezovoltage outputs of 11V and 14.9V during finger-press-release and tapping tests, respectively. The p-ZnO:N nanowires/PTAA-based bilayered PENG delivers a power density of 1.78 μW/cm2 under the finger-tapping test. The five-fold increase in piezovoltage output during finger-tapping is attributed to the triboelectric effect, which induces additional surface charges and suppresses screening. [Display omitted] • Piezoelectric nanogenerator (PENG) with DC piezovoltage using randomly aligned p-ZnO nanowires. • The p-ZnO nanowires/PTAA bilayered PENG generated 14.9 V with power density of 1.78 μW/cm2. • FEA analysis supports the morphology-dependent piezovoltage distribution. • Buckling-driven DC voltage generation mechanism in p-ZnO:N nanowires is analyzed. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Power Sources is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jpowsour.2025.239183
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Nanogenerators
        Type: general
      – SubjectFull: Piezoelectricity
        Type: general
      – SubjectFull: Triboelectricity
        Type: general
      – SubjectFull: Power density
        Type: general
      – SubjectFull: Finite element method
        Type: general
      – SubjectFull: Voltage
        Type: general
      – SubjectFull: Nanowires
        Type: general
    Titles:
      – TitleFull: Realization of direct current piezoelectric nanogenerators developed from p-ZnO:N nanowires / Polytriaryl amine bilayers.
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            NameFull: Ramyashri, S.
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          Name:
            NameFull: Amiruddin, R.
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          Dates:
            – D: 28
              M: 02
              Text: Feb2026
              Type: published
              Y: 2026
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              Value: 666
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            – TitleFull: Journal of Power Sources
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