Issues

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2018

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vol. 16 /

Issue 2

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P. O. Lishchuk, R. M. Burbelo, and M. V. Isaiev
«Features of Thermal Transport in Composite Systems Based on Silicon Nanowires»
313–321 (2018)

PACS numbers: 43.35.Ud, 44.30.+v, 66.70.Lm, 81.05.Rm, 81.07.Gf, 81.70.Cv, 85.80.Fi

In this paper, the results of an experimental study of heat transport in the nanostructured ‘silicon nanowires–liquid’ composite system are presented. The initial nanowire arrays are fabricated by the metal-assisted chemical etching of highly boron-doped single-crystalline silicon wafers. The measurements are carried out by a photoacoustic technique with a gas–microphone registration in a classical configuration. The difference of critical-frequency positions on amplitude–frequency characteristics obtained from nanowires before and after the liquid incorporation is shown. The results specify significant changes in composite-systems’ thermal conductivity in relation to the original samples due to the improvement of the thermal contact between the porous-nanowires’ crystallites and the incorporated liquid.

Keywords: porous semiconductors, silicon nanowires, ‘silicon nanowires–liquid’ composite system, thermal conductivity, photoacoustic method

https://doi.org/10.15407/nnn.16.02.313

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