Journal
PHYSICAL REVIEW LETTERS
Volume 102, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.035901
Keywords
-
Categories
Funding
- Office of Naval Research
Ask authors/readers for more resources
We measured the thermal conductivity kappa of an 80 mu m thick hydrogenated amorphous silicon film prepared by hot-wire chemical-vapor deposition with the 3 omega (80-300 K) and the time-domain thermoreflectance (300 K) methods. The kappa is higher than any of the previous temperature dependent measurements and shows a strong phonon mean free path dependence. We also applied a Kubo based theory using a tight-binding method on three 1000 atom continuous random network models. The theory gives higher kappa for more ordered models, but not high enough to explain our results, even after extrapolating to lower frequencies with a Boltzmann approach. Our results show that this material is more ordered than any amorphous silicon previously studied.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available