Surface phonon-polariton mediated thermal conductivity enhancement of amorphous thin films

Article

关键词: PLASMONS;   

DOI  :  10.1103/PhysRevB.72.155435

来源: SCIE

【 摘 要 】

We predict theoretically that the effective in-plane thermal conductivity of polar, amorphous thin films can be increased by surface phonon-polaritons significantly beyond their intrinsic bulk values. We show that the thermal conductivity due to surface phonon-polaritons increases with decreasing film thickness. In particular, for a 40-nm-thick film of amorphous silicon dioxide, we calculate a total thermal conductivity of 4 W m(-1) K-1 at 500 K, which is an increase of similar to 100% over the intrinsic phonon thermal conductivity.

【 授权许可】

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