Thermoelectric metamaterials: nano‐waveguides for thermoelectric energy conversion and heat management at the nanoscale

X Zianni - Advanced Electronic Materials, 2021 - Wiley Online Library
The idea of using metamaterials for thermoelectrics was proposed 10 years ago. Enhanced
thermoelectric effects and decreased thermal conduction are theoretically demonstrated due …

[HTML][HTML] Thermal conductivity reduction in silicon fishbone nanowires

J Maire, R Anufriev, T Hori, J Shiomi, S Volz… - Scientific reports, 2018 - nature.com
Semiconductor nanowires are potential building blocks for future thermoelectrics because of
their low thermal conductivity. Recent theoretical works suggest that thermal conductivity of …

Amorphization and reduction of thermal conductivity in porous silicon by irradiation with swift heavy ions

PJ Newby, B Canut, JM Bluet, S Gomes… - Journal of Applied …, 2013 - pubs.aip.org
In this article, we demonstrate that the thermal conductivity of nanostructured porous silicon
is reduced by amorphization and also that this amorphous phase in porous silicon can be …

Reduced thermal conductivities of Si one-dimensional periodic structure and nanowire

J Maire, M Nomura - Japanese Journal of Applied Physics, 2014 - iopscience.iop.org
Air-suspended Si nanowires and one-dimensional (1D) phononic crystals (PnC)
nanostructures were fabricated and the thermal conductivity for each structure was …

Scaling behavior of the thermal conductivity of width-modulated nanowires and nanofilms for heat transfer control at the nanoscale

X Zianni, V Jean, K Termentzidis, D Lacroix - Nanotechnology, 2014 - iopscience.iop.org
We report on scaling behavior of the thermal conductivity of width-modulated nanowires and
nanofilms that have been studied with the phonon Monte Carlo technique. It has been found …

Low-temperature plasma etching of high aspect-ratio densely packed 15 to sub-10 nm silicon features derived from PS-PDMS block copolymer patterns

Z Liu, X Gu, J Hwu, S Sassolini, DL Olynick - Nanotechnology, 2014 - iopscience.iop.org
The combination of block copolymer (BCP) lithography and plasma etching offers a gateway
to densely packed sub-10 nm features for advanced nanotechnology. Despite the advances …

Maximizing and minimizing the boundary scattering mean free path in diameter-modulated coaxial cylindrical nanowires

Y Song, G Wehmeyer - Journal of Applied Physics, 2021 - pubs.aip.org
The thermal conductivity (⁠ k⁠) of semiconducting nanomaterials is influenced by the
geometry-dependent phonon boundary scattering mean free path (⁠ Λ Bdy⁠). Although …

Fabricating vertically aligned sub-20 nm Si nanowire arrays by chemical etching and thermal oxidation

L Li, Y Fang, C Xu, Y Zhao, N Zang, P Jiang… - …, 2016 - iopscience.iop.org
Silicon nanowires (SiNWs) are appealing building blocks in various applications, including
photovoltaics, photonics, and sensors. Fabricating SiNW arrays with diameters< 100 nm …

Tuning the Anisotropy of In-Plane Thermal Conduction in Thin Films by Modulating Thickness

Y Zeng, A Marconnet - Physical Review Applied, 2018 - APS
Anisotropy in thermal conductivity is promising for directing the heat-flow pathways in
modern applications including thermal management of electronic devices. While some …

Thermal conductivity engineering in width-modulated silicon nanowires and thermoelectric efficiency enhancement

X Zianni - Journal of Physics D: Applied Physics, 2018 - iopscience.iop.org
Width-modulated nanowires have been proposed as efficient thermoelectric materials. Here,
the electron and phonon transport properties and the thermoelectric efficiency are discussed …