Eur. Phys. J. Appl. Phys.
Volume 65, Number 1, January 2014
|Number of page(s)||11|
|Section||Nanomaterials and Nanotechnologies|
|Published online||06 January 2014|
Analytical insights into thermophysical properties of nanomaterials
Inovative Technology Center, Wintek Corporation, 10 Jianguo road, Tanzih Dist., Taichung 42760, Taiwan ROC
2 Department of Physics, National Tsing Hua University, No. 101, Section 2, Kuang-Fu road, Hsinchu 30013, Taiwan ROC
a e-mail: email@example.com
Revised: 23 November 2013
Accepted: 26 November 2013
Published online: 6 January 2014
Using the discrete ordinate method, we solve the equations of phonon radiative transfer for thin films analytically, and deduce closed-form expressions for three thermophysical properties including the phonon intensity, heat flux density and effective phonon thermal conductivity. These analytical expressions provide a fast and convenient way to analyze heat conduction behavior in thin films, and thus allowing us to comprehend how the film thickness and bulk phonon mean free path affects the thermophysical properties. Also we extend these expressions from thin films to one period of superlattices, and demonstrate that adjusting the thickness ratio of two layers can control its effective phonon thermal conductivity.
© EDP Sciences, 2014
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.