Results 41 to 50 of about 15,575 (291)

High temperature thermoelectric efficiency in Ba8Ga16Ge30 [PDF]

, 2008
The high thermoelectric figure of merit (zT) of Ba8Ga16Ge30 makes it one of the best n-type materials for thermoelectric power generation. Here, we describe the synthesis and characterization of a Czochralski pulled single crystal of Ba8Ga16Ge30 and ...
Christensen, M., Iversen, B. B., Snyder, G. Jeffrey, Toberer, Eric S.   +3 more
core   +1 more source

Thermoelectrics

Materials Today, 2016
Metallic Ag microsphere in a ceramic matrix Thermoelectricity is the direct solid-state conversion between thermal and electrical energy, without any moving parts, due to the well-known Seebeck effect. Currently, more than half of the energy produced ends up in the form of wasted heat: thermoelectric harvesting and energy conversion constitutes an ...
Madre, M.A., Rasekh, S., Torres, M.A., Diez, J.C., Sotelo, A.   +4 more
openaire   +4 more sources

Topological materials for high performance transverse thermoelectrics

Next Energy
Transverse thermoelectrics based on Nernst-Ettingshausen effect have been widely investigated in the 20th century. Old results of transverse thermoelectrics have shown low performances and usually require large magnetic fields. In recent years, the surge
Yu Pan, Bin He, Honghui Wang, Claudia Felser   +3 more
doaj   +1 more source

Interstitial‐Electron‐Induced Topological Molecular Crystals

Advanced Physics Research, 2023
Topological phases are usually unreachable in molecular solids, which are characterized by weakly dispersed energy bands with a large gap, in contrast to topological materials. In this work, however, it is proposed that nontrivial electronic topology may
Tonghua Yu, Ryotaro Arita, Motoaki Hirayama   +2 more
doaj   +1 more source

Opto-thermoelectric microswimmers [PDF]

Light: Science & Applications, 2020
AbstractInspired by the “run-and-tumble” behaviours of Escherichia coli (E. coli) cells, we develop opto-thermoelectric microswimmers. The microswimmers are based on dielectric-Au Janus particles driven by a self-sustained electrical field that arises from the asymmetric optothermal response of the particles. Upon illumination by a defocused laser beam,
Xiaolei Peng, Zhihan Chen, Pavana Siddhartha Kollipara, Yaoran Liu, Jie Fang, Linhan Lin, Yuebing Zheng   +6 more
openaire   +2 more sources

Thermoelectric cooling materials [PDF]

Nature Materials, 2020
Solid-state thermoelectric devices can directly convert electricity into cooling or enable heat pumping through the Peltier effect. The commercialization of thermoelectric cooling technology has been built on the Bi2Te3 alloys, which have had no rival for the past six decades around room temperature. With the discovery and development of more promising
Jun Mao, Gang Chen, Zhifeng Ren
openaire   +2 more sources

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

Advanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho, M. Naeem, T. H. C. Costa, M. S. Libório, J. C. A. Queiroz, C. B. B. Luna, R. R. M. Sousa, P. S. Vieira, E. M. Araújo   +8 more
wiley   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

Nanomagnet coupled to quantum spin Hall edge: An adiabatic quantum motor [PDF]

, 2015
The precessing magnetization of a magnetic islands coupled to a quantum spin Hall edge pumps charge along the edge. Conversely, a bias voltage applied to the edge makes the magnetization precess.
Arrachea, Liliana, von Oppen, Felix
core   +2 more sources