Generalized Theory of Thermo-Acoustic Emission from Nanocrystalline Porous Silicon

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Abstract:

In this work, a general expression of the thermo-acoustic (TA) emission from nanocrystalline porous silicon (nc-PS) is derived by using a fully thermally-mechanically coupled multilayer TA model. This expression takes thermal, mechanical, and geometry properties of every layer in a multilayer structure, as well as the thermal contact resistances between layers into consideration and hence agrees well with the experimental results. Therefore, many fundamental problems in thermally induced ultrasonic emission from nanoporous silicon can be studied.

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734-738

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January 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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