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Updated: Oct 4, 2025

Characterization of Thermal Transport in One-dimensional Solid Materials

Characterization of Thermal Transport in One-dimensional Solid Materials

Published on: January 26, 2014

Ionic heat dissipation in solid-state pores.

Makusu Tsutsui¹, Akihide Arima², Kazumichi Yokota³

¹The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka 8-1, Ibaraki, Osaka 567-0047, Japan.

Science Advances

|February 11, 2022

Summary

Solid-state nanopore temperature increases with electrical power due to ion transport. Smaller pores exhibit higher heating efficiency because of reduced thermal conduction, impacting nanopore sensing applications.

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Area of Science:

Nanotechnology
Physical Chemistry
Materials Science

Background:

Energy dissipation in solid-state nanopores is critical for ionic current-based sensing.
Understanding heat generation is essential for accurate detection and analysis of individual objects in electrolyte solutions.

Purpose of the Study:

To evaluate heating effects from diffusive ion transport in solid-state nanopores.
To investigate the relationship between electrical power, pore size, and temperature rise.
To understand heat dissipation mechanisms within nanoscale conduits.

Main Methods:

Utilized thermocouple-embedded silicon nitride (SiN) nanopores.
Measured nanopore temperature changes in response to varying input electrical power.
Analyzed thermal conduction and heating efficiency as a function of pore dimensions.

Main Results:

Observed a linear correlation between input electrical power and nanopore temperature rise.
Demonstrated increased heating efficiency in smaller nanopores due to diminished thermal conduction.
Quantified temperature increases of a few kelvins in nanoscale pores under standard conditions.

Conclusions:

Diffusive ion transport causes significant heating in solid-state nanopores.
Pore size strongly influences heating efficiency by affecting thermal dissipation.
Findings are crucial for advancing nanopore-based sensing and understanding ion/mass transport.