Publication
Enhanced low-temperature thermoelectrical properties of BiTeCl grown by topotactic method
Publications associées (34)
Challenges and Rewards of the Electrosynthesis of Macroscopic Aligned Carbon Nanotube Array/Conducting Polymer Hybrid Assemblies
László Forró, Endre Horvath, Andrea Pisoni, Péter Krisztián Matus, Klara Hernadi
Hybrid assemblies based on conducting polymers and carbon nanomaterials with organized nanoscale structure are excellent candidates for various application schemes ranging from thermal management to electrochemical energy conversion and storage. In the cas ...
Wiley-Blackwell2015Thermal diffusivity measurements of templated nanocomposite using infrared thermography
Arnaud Magrez, Helmuth Berger, Philippe Bugnon, Manish Sharma
Electrodeposited bismuth telluride (Bi2Te3) nanowires using anodic alumina (AAO) templates show anisotropic thermal properties in a direction parallel and perpendicular to the nanowire/nanochannel axis. The present study reports thermal diffusivity measure ...
Elsevier Science Bv2014Low 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 Physics2013Performance improvement of a micro thermomechanical generator by incorporating Galinstan (R) micro droplet arrays
In previous research we have demonstrated a micro thermomechanical pyroelectric generator (mu TMPG) as an alternative to thermoelectric generators to harvest ambient heat energy. In such a device, a thermal mass oscillates between a hot and a cold side by ...
Iop Publishing Ltd2012Microstructure and thermoelectric properties of bulk and porous n-type silicon-germanium alloy prepared by HUP
The optimization of powders preparation and consolidation process leads to the achievement of a high thermoelectric figure of merit (ZT=1.25 at 800°C) in an n-type silicon-germanium (SiGe) alloy hot pressed at low heating rate. It has been experimentally o ...
2012Pressure dependence of the large-polaron transport in anatase TiO2 single crystals
László Forró, Arnaud Magrez, Richard Gaal, Helmuth Berger, Jacim Jacimovic, George Cristian Vaju, Radomir Zikic
We have measured the pressure and temperature dependences of the resistivity and the thermoelectric power of anatase, TiO2. The resistivity varies with T-3 at high temperatures, and its absolute value is in the 1 Omega cm range. Below 60 K, the resistivity ...
Epl Association, European Physical Society2012Electronic, vibrational, and transport properties of pnictogen-substituted ternary skutterudites
Nicola Marzari, Boris Kozinsky
First principles calculations are used to investigate electronic band structure and vibrational spectra of pnictogen-substituted ternary skutterudites. We compare the results with the prototypical binary composition CoSb3 to identify the effects of substit ...
2012High-pressure study of transport properties in Co0.33NbS2
László Forró, Helmuth Berger, Jacim Jacimovic, Eduard Tutis, Ofer Yuli, Neven Barisic
This is the first study of the effect of pressure on transition metal dichalcogenides (TMDs) intercalated by atoms that order magnetically. Co0.33NbS2 is a layered system where the intercalated Co atoms order antiferromagnetically at T-N = 26 K at ambient ...
American Physical Society2011Diamond-based Metal Matrix Composites for thermal Management - Potential and Limits
Ludger Weber, Reza Tavangar Hamzehkolaei
Diamond-based metal matrix composites have been made based on pure Al and eutectic Ag-3Si alloy by gas pressure infiltration into diamond powder beds with the aim to maximize thermal conductivity and to explore the range of coefficient of thermal expansion ...
Trans Tech Publications Ltd, Laublsrutistr 24, Ch-8717 Stafa-Zurich, Switzerland2009Characterization of Ge-based clathrates oxidized in air by means of TEM and SEM
Cécile Hébert, Marco Cantoni, Barbora Bártová
Germanium based clathrate-I compounds are considered for their potential applications due to possible thermoelectric and optoelectronic properties. Clathrate compounds may be an alternative to well known thermoelectric materials at higher temperature. In t ...
2008