Publications associées à Pressure dependence of the large-polaron transport in anatase TiO2 single crystals

Efficient Photothermoelectric Conversion in Lateral Topological Insulator Heterojunctions

Tuning the electron and phonon transport properties of thermoelectric materials by nanostructuring has enabled improving their thermopower figure of merit. Three-dimensional topological insulators, including many bismuth chalcogenides, attract increasing a ...

Amer Chemical Soc2017

Harnessing Topological Band Effects in Bismuth Telluride Selenide for Large Enhancements in Thermoelectric Properties through Isovalent Doping

Klaus Kern, Marko Burghard, Pascal Gehring, Alexander Ronald Hoyer, Kristina Vaklinova

Dilute isovalent sulfur doping simultaneously increases electrical conductivity and Seebeck coefficient in Bi2Te2Se nanoplates, and bulk pellets made from them. This unusual trend at high electron concentrations is underpinned by multifold increases in ele ...

Wiley-V C H Verlag Gmbh2016

Capacitive inertial sensing at high temperatures of up to 400 degrees C

Mikhail Asiatici, Göran Stemme

High-temperature-resistant inertial sensors are increasingly requested in a variety of fields such as aerospace, automotive and energy. Capacitive detection is especially suitable for sensing at high temperatures due to its low intrinsic temperature depend ...

Elsevier Science Sa2016

The Role of Transport Agents in MoS2 Single Crystals

László Forró, Arnaud Magrez, Arnaud Walter, Helmuth Berger, Bálint Náfrádi, Andrea Pisoni, Jacim Jacimovic

We report resistivity, thermoelectric power, and thermal conductivity of MoS2 single crystals prepared by the chemical vapor transport (CVT) method using I-2, Br-2, and TeCl4 as transport agents. The material presents low-lying donor and acceptor levels, w ...

Amer Chemical Soc2015

Tuning of the Thermoelectric Figure of Merit of CH3NH3MI3 (M=Pb,Sn) Photovoltaic Perovskites

László Forró, Davor Pavuna, Endre Horvath, Xavier François Mettan, Bálint Náfrádi, Andrea Pisoni, Massimo Spina, Péter Krisztián Matus, Riccardo Pisoni

The hybrid halide perovskites, the very performant compounds in photovoltaic applications, possess large Seebeck coefficient and low thermal conductivity, making them potentially interesting high figure of merit (ZT) materials. For this purpose, one needs ...

American Chemical Society2015

Electron-Phonon Coupling in the Bulk of Anatase TiO2 Measured by Resonant Inelastic X-Ray Spectroscopy

Marco Grioni, Arnaud Magrez, Helmuth Berger, Philippe Bugnon, Simon Karl Moser, Sara Fatale

We investigate the polaronic ground state of anatase TiO2 by bulk-sensitive resonant inelastic x-ray spectroscopy (RIXS) at the Ti L-3 edge. We find that the formation of the polaron cloud involves a single 95 meV phonon along the c axis, in addition to th ...

Amer Physical Soc2015

Enhanced low-temperature thermoelectrical properties of BiTeCl grown by topotactic method

László Forró, Arnaud Magrez, Richard Gaal, Xavier François Mettan, Helmuth Berger, Philippe Bugnon, Ana Akrap, Andrea Pisoni, Sergiy Katrych, Jacim Jacimovic

We developed a topotactic strategy to grow BiTeCl single crystals. Structural characterization by means of X-ray diffraction was performed, and the high crystallinity of the material was proven. Measurements of the thermoelectrical coefficients electrical ...

Pergamon-Elsevier Science Ltd2014

Space- and time-resolved Seebeck and Nernst voltages in laser-heated permalloy/gold microstructures

Jean-Philippe Ansermet, Dirk Grundler, Arndt Christian von Bieren

Thermoelectric effects in microstructured permalloy (Py) / gold (Au) wires are investigated using spatially and time-resolved measurements based on scanning focused laser heating. Supported by numerical simulations of the temperature distribution, we ident ...

American Institute of Physics2013

Low temperature resistivity, thermoelectricity, and power factor of Nb doped anatase TiO2

László Forró, Arnaud Magrez, Richard Gaal, Jacim Jacimovic

The resistivity of a very high quality anatase TiO2 doped with 6% of Nb was measured from 300K down to 40 mK. No sign of superconductivity was detected. Instead, a minute quantity of cation vacancies resulted in a Kondo scattering. Measurements of thermo-e ...

Amer Inst Physics2013

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Pressure dependence of the large-polaron transport in anatase TiO2 single crystals

Efficient Photothermoelectric Conversion in Lateral Topological Insulator Heterojunctions

Pressure-tuned Transport Properties of Novel Iron-based Superconductors and Topological Insulators

Harnessing Topological Band Effects in Bismuth Telluride Selenide for Large Enhancements in Thermoelectric Properties through Isovalent Doping

Capacitive inertial sensing at high temperatures of up to 400 degrees C

The Role of Transport Agents in MoS2 Single Crystals

Tuning of the Thermoelectric Figure of Merit of CH3NH3MI3 (M=Pb,Sn) Photovoltaic Perovskites

Electron-Phonon Coupling in the Bulk of Anatase TiO2 Measured by Resonant Inelastic X-Ray Spectroscopy

Enhanced low-temperature thermoelectrical properties of BiTeCl grown by topotactic method

Space- and time-resolved Seebeck and Nernst voltages in laser-heated permalloy/gold microstructures

Low temperature resistivity, thermoelectricity, and power factor of Nb doped anatase TiO2

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Chattez avec Graph Search

Capacitive inertial sensing at high temperatures of up to 400 degrees C

Space- and time-resolved Seebeck and Nernst voltages in laser-heated permalloy/gold microstructures

Tuning of the Thermoelectric Figure of Merit of CH3NH3MI3 (M=Pb,Sn) Photovoltaic Perovskites

Low temperature resistivity, thermoelectricity, and power factor of Nb doped anatase TiO2

Pressure-tuned Transport Properties of Novel Iron-based Superconductors and Topological Insulators

Electron-Phonon Coupling in the Bulk of Anatase TiO2 Measured by Resonant Inelastic X-Ray Spectroscopy

The Role of Transport Agents in MoS2 Single Crystals

Enhanced low-temperature thermoelectrical properties of BiTeCl grown by topotactic method

Efficient Photothermoelectric Conversion in Lateral Topological Insulator Heterojunctions

Harnessing Topological Band Effects in Bismuth Telluride Selenide for Large Enhancements in Thermoelectric Properties through Isovalent Doping