A new spatial-domain thermoreflectance method to measure a broad range of anisotropic in-plane thermal conductivity
Abstract
In-plane thermal conductivities of small-scale samples are hard to measure, especially for the lowly conductive ones and those lacking in-plane symmetry (i.e., transversely anisotropic materials). State-of-the-art pump-probe techniques including both the time-domain and the frequency-domain thermoreflectance (TDTR and FDTR) are advantageous in measuring the thermal conductivity of small-scale samples, and various advanced TDTR and FDTR techniques have been developed to measure transversely anisotropic materials. However, the measurable in-plane thermal conductivity (
- Publication:
-
International Journal of Heat and Mass Transfer
- Pub Date:
- August 2022
- DOI:
- 10.1016/j.ijheatmasstransfer.2022.122849
- arXiv:
- arXiv:2201.12111
- Bibcode:
- 2022IJHMT.19122849J
- Keywords:
-
- in-plane thermal conductivity;
- anisotropic;
- spatial-domain thermoreflectance;
- SDTR;
- sub-millimeter scale sample;
- Condensed Matter - Materials Science;
- Physics - Applied Physics
- E-Print:
- 26 pages, 9 figures, patent-pending technique