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|Title:||Size-dependent melting temperature and thermal conductivity of nanoscale semiconductors|
|Authors:||Liang, L.H. |
|Source:||Liang, L.H.,Li, B. (2007-09-30). Size-dependent melting temperature and thermal conductivity of nanoscale semiconductors. International Journal of Modern Physics B 21 (23-24) : 4026-4029. ScholarBank@NUS Repository.|
|Abstract:||A model describing size-dependent melting temperature and thermal conductivity of nanosemiconductors is proposed based on Lindermann's melting criterion and Debye model. By the atomic thermal vibration consideration and by introducing intrinsic size effect of phonon velocity and mean free path combined with surface scattering effect, the model predicts that the melting temperature and thermal conductivity of nanosemiconductors decrease as the size reduces. The size effect depends on such material parameters as the vibration entropy, mean free path, the characteristic crystal size and surface roughness. The predictions are in agreement with experimental results of Si nanoparticles, nanowires and thin films. © World Scientific Publishing Company.|
|Source Title:||International Journal of Modern Physics B|
|Appears in Collections:||Staff Publications|
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