Thermal analysis of surface micromachined porous silicon membranes using the 3ω method: Implications for thermal sensing

Erfantalab, Sobhan; Sharma, Prakash Chandra; Parish, Giacinta; Keating, Adrian

doi:10.1016/j.applthermaleng.2022.119965

Cited by 11 publications

(4 citation statements)

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“…Porous silicon (PSi) is very attractive as a host for ILs due to its wide diversity of pores 21 , 22 and sizeable specific surface area that significantly impact heat and mass transfer of the fluid confined in the porous network. PSi is stiffer than polymer matrix which could lead to significant confinement of the ILs.…”

Section: Introductionmentioning

confidence: 99%

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Thermal transport properties of porous silicon filled by ionic liquid nanocomposite system

Lishchuk

Vashchuk

Rogalsky

et al. 2023

Sci Rep

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This paper investigates thermal transport in a nanocomposite system consisting of a porous silicon matrix filled with ionic liquid. Firstly, the thermal conductivity and heat capacity of two imidazolium and one ammonium ionic liquids were evaluated using the photoacoustic approach in piezoelectric configuration and differential scanning calorimetry, respectively. Then, the thermal transport properties of the composite system "ionic liquid confined inside porous silicon matrix" were investigated with the photoacoustic approach in gas-microphone configuration. The results demonstrated a significant enhancement of the thermal conductivity of the composite system when compared to the individual components, i.e. (i) more than two times for pristine porous silicon and (ii) more than eight times for ionic liquids. These results provide new paths for innovative solutions in the field of thermal management, particularly in the development of highly efficient energy storage devices.

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Section: Introductionmentioning

confidence: 99%

“…Porous silicon (PSi) is very attractive as a host for ILs due to its wide diversity of pores 21,22 and sizeable specific surface area that significantly impact heat and mass transfer of the fluid confined in the porous network. PSi is OPEN 1 Faculty of Physics, Taras Shevchenko National University of Kyiv, 64 Volodymyrska Street, Kyiv 01601, Ukraine.…”

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confidence: 99%

Thermal transport properties of porous silicon filled by ionic liquid nanocomposite system

Lishchuk

Vashchuk

Rogalsky

et al. 2023

Sci Rep

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“…In the past years, the preparation of porous silicon has mainly relied on the etching method. The pore size of porous silicon nanoparticles prepared by electrochemical etching is small and uniformly distributed [ 30 , 31 ]. However, the special physical morphology of silicon wafers limits the development of a wide range of applications in the field of energetic materials.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Mesoporous Si Nanoparticles by Magnesiothermic Reduction for the Enhanced Reactivity

Fei

Zhang

et al. 2023

Molecules

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In this study, mesoporous silicon nanoparticles (M-Si) were successfully prepared by a magnesiothermic reduction of mesoporous silica nanoparticles, which were synthesized by a templated sol-gel method and used as the precursors. M-Si exhibited a uniform size distribution with an average diameter of about 160 nm. The measured BET surface area was 93.0 m2 g−1, and the average pore size calculated by the BJH method was 16 nm. The large internal surface area provides rich reaction sites, resulting in unique interfacial properties and reduced mass diffusion limitations. The mechanism of the magnesiothermic reduction process was discussed. The reactivity of prepared M-Si was compared with that of commercially available non-porous Si nanopowder (with the average diameter of about 30 nm) by performing simultaneous thermogravimetry and differential scanning calorimetry in the air. The results showed that the reaction onset temperature indicated by weight gain was advanced from 772 °C to 468 °C, indicating the promising potential of M-Si as fuel for metastable intermolecular composites.

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“…Specifically, the significant reduction of thermal conductivity of PS compared to the bulk one is already well known 8,9 . Two main reasons explain this: i) the natural removal of material and ii) the phonon arXiv:2302.13847 scattering at the interfaces.…”

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confidence: 98%

Thermal Transport Properties of Nanoporous Silicon with Significant Specific Surface Area

Isaiev¹,

Yuliia²,

Kuryliuk³

et al. 2023

Preprint

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Thermal analysis of surface micromachined porous silicon membranes using the 3ω method: Implications for thermal sensing

Cited by 11 publications

References 50 publications

Thermal transport properties of porous silicon filled by ionic liquid nanocomposite system

Thermal transport properties of porous silicon filled by ionic liquid nanocomposite system

Preparation of Mesoporous Si Nanoparticles by Magnesiothermic Reduction for the Enhanced Reactivity

Thermal Transport Properties of Nanoporous Silicon with Significant Specific Surface Area

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