Phonon engineered suppression of lattice thermal conductivity in segmented and cross-section modulated silicon nanowires

NIKA, Denis

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dc.contributor.author	NIKA, Denis
dc.date.accessioned	2019-12-04T11:28:33Z
dc.date.available	2019-12-04T11:28:33Z
dc.date.issued	2012
dc.identifier.citation	NIKA, Denis. Phonon engineered suppression of lattice thermal conductivity in segmented and cross-section modulated silicon nanowires. In: Telecommunications, Electronics and Informatics- ICTEI 2012: proc. of the 5th intern. conf., Technical University of Moldova, May 11-13, 2012. Chișinău, 2012, Vol. 1, pp. 92-93. ISBN 978-9975-45-082-9.	en_US
dc.identifier.isbn	978-9975-45-082-
dc.identifier.uri	http://repository.utm.md/handle/5014/7241
dc.description.abstract	The strong suppression of lattice (phonon) thermal conductivity in segmented nanowires, consisting of acoustically-mismatched materials, as well as in cross-section modulated Si nanowires is theoretically demonstrated using the Born-von Karman and Face-centered Cubic Cell models of lattice vibrations. This effect is explained by the exclusion of the phonon modes trapped in nanowire segments from the heat flow. As a result 3- to 30-fold drop of the phonon heat flux in the 50 – 400 K temperature range is predicted for segmented or cross-section modulated nanowires under consideration.	en_US
dc.language.iso	en	en_US
dc.publisher	Technical University of Moldova	en_US
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 United States	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.subject	nanowires	en_US
dc.subject	phonons	en_US
dc.subject	lattice thermal conductivity	en_US
dc.subject	thermal conductivity	en_US
dc.title	Phonon engineered suppression of lattice thermal conductivity in segmented and cross-section modulated silicon nanowires	en_US
dc.type	Article	en_US