Concept

Ordres de grandeur de température

Publications associées (32)

Charging dynamics of localized 2D layers of Si nanocrystals embedded into SiO2 by stencil masked ultra low energy ion implantation process

Jürgen Brugger, Andreea Veronica Savu, Marc Antonius Friedrich van den Boogaart

Flash memories based on nanoparticles (NPs) offer an attractive alternative for performance enhancement and size downscaling of non-volatile memory cells. In these devices, Coulomb blockade and quantized charging effects can be exploited at room temperatur ...

2008

Temperature dependence of the conductivity in large-grained boron-doped ZnO films

Christophe Ballif, Arvind Shah, Sylvie Faÿ

The temperature dependence of the conductivity is investigated as a function of boron doping in large-grained, degenerate polycrystalline ZnO films prepared by low-pressure chemical vapor deposition. Carrier transport in undoped and lightly doped films is ...

2007

Temperature dependence of lattice mismatch and gamma' volume fraction of a fourth-generation monocrystalline nickel-based superalloy

Frédéric Diologent

The strain distribution in a new generation nickel-based single crystal superalloy has been determined in the temperature range 293K–1598K. Measurements have been performed using diffraction of high energy synchrotron radiation (150keV, λ = 0.008 nm) to de ...

2006

Molecular dynamics study of tryptophylglycine: A dipeptide nanotube with confined water

Gervais Chapuis, Philip Pattison

To investigate the mechanism of structural changes of a peptide nanotube and water confined inside the channel, the helical peptide tryptophylglycine monohydrate (WG-H2O) was studied by molecular dynamics (MD) simulations using the three-dimension parallel ...

2004

Temperature dependence of the optical absorption coefficient of microcrystalline silicon

Arvind Shah

The optical absorption coefficient of amorphous and microcrystalline silicon was determined in a spectral range 400-3100 nm and a temperature range 77-350 K. Transmittance measurement and Fourier transform photocurrent spectroscopy were used. The measured ...

2004

Analyse de la migration d’huile dans les pompes à chaleur mono- et biétagées

Daniel Favrat, Michele Zehnder

The Laboratory of Industrial Energy systems has evaluated a series of high performance air-water heat pump concepts with the aim to retrofit existing fuel fired boilers for residential hydronic heating systems. The results are published within the framewor ...

2003

Figure of merit of quasicrystals: the case of Al-Cu-Fe

Davor Pavuna

Quasicrystals exhibit low thermal and moderate electrical conductivity, accompanied by a relatively high absolute magnitude of thermopower, which makes them suitable candidates for use as thermoelectric devices. Theoretical explanations of electrical and t ...

2001

The phases of CS3Bi2I9 between RT and 190 K

Gervais Chapuis, Alla Arakcheeva

The structure of Cs3Bi2I9 has been refined to R = 0.0165 on the basis of X-ray diffraction measurements at T = 290 K (STOE IPDS diffractometer; MoKalpha-radiation; 296 nonequivalent reflection with I > 2 sigma(I)). The absorption correction was accounted f ...

1999

Direct evidence for Vogel-Fulcher freezing in relaxor ferroelectrics

Alexander Tagantsev

Direct evidence for freezing in two relaxer ferroelectrics, PbMg1/3Nb2/3O3 and PbSc1/2Ta1/2O3, at a certain temperature T-f not equal 0K was obtained from the temperature dependence of the maximum relaxation time, tau(max), It was shown that tau(max)(T) fo ...

1998

A continuous Late Glacial and Holocene record of vegetation changes in Kazakhstan

Jed Oliver Kaplan

The Late Glacial and Holocene vegetation history of northern Kazakhstan is reconstructed using a well dated continuous pollen record from Ozerki swamp (50 degrees 24'N, 80 degrees 28'E, altitude 210 m), near Semipalatinsk. A montane steppe-taiga community ...

1997

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