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Temperature Dependence on Reaction Rate02:55

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Related Experiment Video

Updated: Feb 12, 2026

Atomic Layer Deposition of Vanadium Dioxide and a Temperature-dependent Optical Model
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Schottky model for triboelectric temperature dependence.

Martin Olsen1, Jonas Örtegren2, Renyun Zhang2

  • 1Department of Natural Sciences, Mid Sweden University, Sundsvall, 851 70, Sweden. martin.olsen@miun.se.

Scientific Reports
|March 30, 2018
PubMed
Summary
This summary is machine-generated.

The triboelectric effect in nanogenerators decreases with temperature. A new ion transfer model explains this, fitting experimental data and revealing ion binding energies crucial for device performance.

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Area of Science:

  • Materials Science
  • Energy Harvesting
  • Surface Physics

Background:

  • Triboelectric nanogenerators (TENGs) utilize the triboelectric effect for energy harvesting.
  • The charging phenomenon in TENGs involves contact and separation of surfaces.
  • Recent studies show a decrease in the triboelectric effect with increasing temperature for Al-PTFE-Cu generators.

Purpose of the Study:

  • To propose a mechanism explaining the temperature dependence of the triboelectric effect in TENGs.
  • To develop a theoretical model based on ion transfer to describe triboelectric charging.
  • To validate the model by fitting it to experimental data from Al-PTFE-Cu TENGs.

Main Methods:

  • A two-level Schottky model was employed, representing the two surfaces of the TENG.
  • The model incorporates ion transfer between surfaces, with binding energy differences influencing charging.
  • Triboelectric power density data from literature for Al-PTFE-Cu TENGs were fitted to the model.

Main Results:

  • The model successfully explains the observed decrease in triboelectric effect with increasing temperature.
  • An average ion separation energy was determined, corresponding to a temperature of 365 K.
  • This energy value is consistent with energies for physically adsorbed atoms.

Conclusions:

  • The proposed ion transfer mechanism provides a viable explanation for temperature-dependent triboelectric charging.
  • The two-level Schottky model accurately predicts TENG performance across varying temperatures.
  • This theoretical framework is anticipated to be applicable to a wide range of triboelectric nanogenerator designs.