Nanoscale heat transport analysis by scanning thermal microscopy: from calibration to high-resolution measurements.

ABSTRACT: Scanning thermal microscopy (SThM) is a powerful technique for thermal characterization. However, one of the most challenging aspects of thermal characterization is obtaining quantitative information on thermal conductivity with nanoscale lateral resolution. We used this technique with the cross-point calibration method to obtain the thermal contact resistance, R _c, and thermal exchange radius, b, using thermo-resistive Pd/Si₃N₄ probes. The cross-point curves correlate the dependence of R _c and b with the sample's thermal conductivity. We implemented a 3ω-SThM method in which reference samples with known thermal conductivity were used in the calibration and validation process to guarantee optimal working conditi

SUBMITTER: Vera-Londono L 

PROVIDER: S-EPMC9419519 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature