Application of the photoacoustic approach in the characterization of nanostructured materials

M Isaiev, G Mussabek, P Lishchuk, K Dubyk… - Nanomaterials, 2022 - mdpi.com
A new generation of sensors can be engineered based on the sensing of several markers to
satisfy the conditions of the multimodal detection principle. From this point of view …

Achieving porous germanium from both p-and n-type epitaxial Ge-on-Si via bipolar potentiostatic etching

Y Zhu, Y Zhang, B Li, GM Xia, RT Wen - Electrochimica Acta, 2023 - Elsevier
Due to the large surface specific area, tunable porosity and refractive index, porous
germanium (Ge) has wide applications in optoelectronics, photovoltaics, anode materials in …

Photoacoustic characterization of nanowire arrays formed by metal-assisted chemical etching of crystalline silicon substrates with different doping level

P Lishchuk, M Isaiev, L Osminkina, R Burbelo… - Physica E: Low …, 2019 - Elsevier
Silicon nanowire (SiNW) arrays were investigated by gas-microphone photoacoustic (PA)
technique to evaluate the thermal conductivity and optical absorption. The arrays with …

Crystalline-amorphous silicon nano-composites: Nano-pores and nano-inclusions impact on the thermal conductivity

M Verdier, K Termentzidis, D Lacroix - Journal of Applied Physics, 2016 - pubs.aip.org
The thermal conductivities of nanoporous and nanocomposite silicon with incorporated
amorphous phases have been computed by molecular dynamics simulations. A systematic …

Manipulating phonons at the nanoscale: Impurities and boundaries

I Zardo, R Rurali - Current Opinion in Green and Sustainable Chemistry, 2019 - Elsevier
Efficiently controlling phonon propagation is important in many applications, ranging from
the design of thermoelectric materials to thermal budget engineering. Phonon manipulation …

Thermal conductivity of silicon nanomaterials measured using the photoacoustic technique in a piezoelectric configuration

K Dubyk, A Pastushenko, T Nychyporuk… - Journal of Physics and …, 2019 - Elsevier
In this study, we investigated the thermal transport in porous silicon nanostructures and
silicon nanowires fabricated by electrochemical and metal-assisted chemical etching …

Thermal conductivity of strained silicon: Molecular dynamics insight and kinetic theory approach

V Kuryliuk, O Nepochatyi, P Chantrenne… - Journal of Applied …, 2019 - pubs.aip.org
In this work, we investigated the tensile and compression forces effect on the thermal
conductivity of silicon. We used the equilibrium molecular dynamics approach for the …

Features of photothermal transformation in porous silicon based multilayered structures

K Dubyk, L Chepela, P Lishchuk, A Belarouci… - Applied Physics …, 2019 - pubs.aip.org
This paper is devoted to the study of photothermal transformations in multilayered structures.
As a modeled sample, porous silicon with a periodic distribution of porosity was chosen. The …

Measurement of the in-plane thermal conductivity by steady-state infrared thermography

A Greppmair, B Stoib, N Saxena… - Review of Scientific …, 2017 - pubs.aip.org
We demonstrate a simple and quick method for the measurement of the in-plane thermal
conductance of thin films via steady-state IR thermography. The films are suspended above …

Nanoscale morphology tuning of mesoporous Ge: electrochemical mechanisms

S Tutashkonko, S Alekseev, T Nychyporuk - Electrochimica Acta, 2015 - Elsevier
The extended analysis of influence of the surface hydrogen passivation degree on
morphology of mesoporous Ge (PGe) formed by Bipolar Electrochemical Etching technique …