التفاصيل البيبلوغرافية
| العنوان: |
Transmission function and thermal conductivity of Si phononic crystals. |
| المؤلفون: |
Jung Hyun Oh, Moon-Gyu Jang, S E Moon, Mincheol Shin |
| المصدر: |
Modelling & Simulation in Materials Science & Engineering; Oct2016, Vol. 24 Issue 7, p1-1, 1p |
| مصطلحات موضوعية: |
PHONONIC crystals, THERMAL conductivity, GREEN'S functions, SILICON nanowires, HETEROJUNCTIONS, THERMOELECTRIC apparatus & appliances, ACOUSTIC wave propagation |
| مستخلص: |
We investigate phonon transport properties of Si phononic crystals by using an atomistic Green function method. By varying form factors such as thickness, orientation, and pore size of unit cells, mean-free path and associated thermal conductivity of phononic crystals are obtained. We present the empirical formula for thermal conductivity as a function of cell size and, by extrapolating results from it for realistic cell sizes, the thermal conductivity is compared with experimental ones. The formula is found to predict a nearly equal amount of the suppression in thermal conductivity to the experimental values, implying a feasible calculation method for predicting thermal properties of phononic crystals. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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