Search Results - "Ramu, Ashok T."

Semimetal/Semiconductor Nanocomposites for Thermoelectrics by Lu, Hong, Burke, Peter G., Gossard, Arthur C., Zeng, Gehong, Ramu, Ashok T., Bahk, Je-Hyeong, Bowers, John E.

“…In this work, we present research on semimetal‐semiconductor nanocomposites grown by molecular beam epitaxy (MBE) for thermoelectric applications. We study…”
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The impact of commonly used approximations on the computation of the Seebeck coefficient and mobility of polar semiconductors by Ramu, Ashok T., Bowers, John E.

“…Seebeck coefficient modeling and measurement has important applications in direct thermal to electrical energy conversion and solid-state physics. The…”
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A compact heat transfer model based on an enhanced Fourier law for analysis of frequency-domain thermoreflectance experiments by Ramu, Ashok T., Bowers, John E.

“…A recently developed enhanced Fourier law is applied to the problem of extracting thermal properties of materials from frequency-domain thermoreflectance…”
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An electrical probe of the phonon mean-free path spectrum by Ramu, Ashok T., Halaszynski, Nicole I., Peters, Jonathan D., Meinhart, Carl D., Bowers, John E.

“…Most studies of the mean-free path accumulation function (MFPAF) rely on optical techniques to probe heat transfer at length scales on the order of the phonon…”
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Thermal Modeling of Resistive Switching Devices by Ramu, A. T., Strukov, D. B.

“…A Fourier series-based model is developed for the problem of heat conduction in a geometry composed of an insulator between two metallic electrodes, with…”
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High-Temperature Thermoelectric Characterization of III–V Semiconductor Thin Films by Oxide Bonding by Bahk, Je-Hyeong, Zeng, Gehong, Zide, Joshua M. O., Lu, Hong, Singh, Rajeev, Liang, Di, Ramu, Ashok T., Burke, Peter, Bian, Zhixi, Gossard, Arthur C., Shakouri, Ali, Bowers, John E.

“…A device fabrication and measurement method utilizing a SiO 2 –SiO 2 covalent bonding technique is presented for high-temperature thermoelectric…”
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Thermoelectric Transport in InGaAs with High Concentration of Rare-Earth TbAs Embedded Nanoparticles by Selezneva, Ekaterina, Clinger, Laura E., Ramu, Ashok T., Pernot, Gilles, Buehl, Trevor E., Favaloro, Tela, Bahk, Je-Hyeong, Bian, Zhixi, Bowers, John E., Zide, Joshua M. O., Shakouri, Ali

“…Thermoelectric transport properties of InGaAs with a high concentration of embedded semimetallic TbAs nanoparticles were studied in a 300–600 K temperature…”
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The impact of commonly used approximations on the computation of the Seebeck coefficient and mobility of polar semiconductors by Ramu, Ashok T., Bowers, John E.

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Semimetal/Semiconductor Nanocomposites for Thermoelectrics by Lu, Hong, Burke, Peter G., Gossard, Arthur C., Zeng, Gehong, Ramu, Ashok T., Bahk, Je-Hyeong, Bowers, John E.

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Incompatibility of standard III–V compound semiconductor processing techniques with terbium-doped InGaAs of high terbium concentration by Ramu, Ashok T., Clinger, Laura E., Dongmo, Pernell B., Imamura, Jeffrey T., Zide, Joshua M. O., Bowers, John E.

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Incompatibility of standard III–V compound semiconductor processing techniques with terbium-doped InGaAs of high terbium concentration by Ramu, Ashok T., Clinger, Laura E., Dongmo, Pernell B., Imamura, Jeffrey T., Zide, Joshua M. O., Bowers, John E.

“…Terbium-doped InGaAs with a high terbium concentration shows promise as a high-efficiency thermoelectric material, with the thermal conductivity dropping to…”
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Thermoelectric Transport in InGaAs with High Concentration of Rare-Earth TbAs Embedded Nanoparticles by Selezneva, Ekaterina, Clinger, Laura E., Ramu, Ashok T., Pernot, Gilles, Buehl, Trevor E., Favaloro, Tela, Bahk, Je-Hyeong, Bian, Zhixi, Bowers, John E., Zide, Joshua M. O., Shakouri, Ali

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Electrical transport, electrothermal transport, and effective electron mass in single-crystalline In sub(2)O sub(3) films by Preissler, Natalie, Bierwagen, Oliver, Ramu, Ashok T, Speck, James S

“…A comprehensive study of the room-temperature electrical and electrothermal transport of single-crystalline indium oxide (In[sub 2] O[sub 3]) and indium tin…”
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Electrical transport, electrothermal transport, and effective electron mass in single-crystalline In 2 O 3 films by Preissler, Natalie, Bierwagen, Oliver, Ramu, Ashok T., Speck, James S.

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On the solenoidal heat-flux in quasi-ballistic thermal conduction by Ramu, Ashok T, Bowers, John E

“…The Boltzmann transport equation for phonons is recast directly in terms of the heat-flux by means of iteration followed by truncation at the second order in…”
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A generalized enhanced Fourier law and underlying connections to major frameworks for quasi-ballistic phonon transport by Ramu, Ashok T, Bowers, John E

“…An enhanced Fourier law (EFL) that accounts for quasi-ballistic phonon transport effects in a formulation entirely in terms of physical observables, is derived…”
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A compact heat transfer model based on an enhanced Fourier law for analysis of frequency-domain thermoreflectance experiments by Ramu, Ashok T, Bowers, John E

“…A recently developed enhanced Fourier law is applied to the problem of extracting thermal properties of materials from frequency-domain thermoreflectance…”
Get full text

Quasi-ballistic phonon transport effects on the determination of the mean-free path accumulation function for the effective thermal conductivity by Ramu, Ashok T, Bowers, John E

“…The mean-free path (MFP) accumulation function for the effective thermal conductivity, introduced by Dames and Chen is a compact, universal and highly useful…”
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Reduction of the effective thermal conductivity by circulation of the quasi-ballistic heat-flux by Ramu, Ashok T, Meinhart, Carl D, Bowers, John E

“…For a thermal conductivity that is spatially uniform and independent of temperature, Fourier's law of heat transfer predicts a curl-free heat-flux. In the…”
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An electrical probe of the phonon mean-free path spectrum by Ramu, Ashok T, Halaszynski, Nicole I, Peters, Jonathan D, Meinhart, Carl D, Bowers, John E

“…Most studies of the mean-free path accumulation function (MFPAF) rely on optical techniques to probe heat transfer at length scales on the order of the phonon…”
Get full text