Thermal conductivity measurements of high and low thermal conductivity films using a scanning hot probe method in the 3ω mode and novel calibration strategies

Nanoscale
Adam A WilsonTheodorian Borca-Tasciuc

Abstract

This work discusses measurement of thermal conductivity (k) of films using a scanning hot probe method in the 3ω mode and investigates the calibration of thermal contact parameters, specifically the thermal contact resistance (R(th)C) and thermal exchange radius (b) using reference samples with different thermal conductivities. R(th)C and b were found to have constant values (with b = 2.8 ± 0.3 μm and R(th)C = 44,927 ± 7820 K W(-1)) for samples with thermal conductivity values ranging from 0.36 W K(-1) m(-1) to 1.1 W K(-1) m(-1). An independent strategy for the calibration of contact parameters was developed and validated for samples in this range of thermal conductivity, using a reference sample with a previously measured Seebeck coefficient and thermal conductivity. The results were found to agree with the calibration performed using multiple samples of known thermal conductivity between 0.36 and 1.1 W K(-1) m(-1). However, for samples in the range between 16.2 W K(-1) m(-1) and 53.7 W K(-1) m(-1), calibration experiments showed the contact parameters to have considerably different values: R(th)C = 40,191 ± 1532 K W(-1) and b = 428 ± 24 nm. Finally, this work demonstrates that using these calibration procedures, measurements ...Continue Reading

References

Sep 28, 2002·Science·T C HarmanB E LaForge
Aug 7, 2010·The Review of Scientific Instruments·Etienne PuyooStefan Dilhaire
Oct 12, 2013·Nanoscale·Miguel Muñoz RojoMarisol Martín-Gonzalez

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Citations

Sep 22, 2016·Scientific Reports·Jaime Andres Perez-TabordaMarisol Martin-Gonzalez
May 10, 2017·Nanoscale·Miguel Muñoz RojoM Martín Gonzalez
Aug 3, 2017·The Review of Scientific Instruments·Adam A Wilson, Theodorian Borca-Tasciuc
Aug 24, 2019·Frontiers in Chemistry·Cristina V Manzano, Marisol Martin-Gonzalez
Jun 3, 2021·Nanomaterials·Stéphane GraubyStefan Dilhaire

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