Results 71 to 80 of about 58,975 (287)

Measuring Temperature Gradients over Nanometer Length Scales

, 2009
When a quantum dot is subjected to a thermal gradient, the temperature of electrons entering the dot can be determined from the dot's thermocurrent if the conductance spectrum and background temperature are known.
Boukai A. I., Datta S., Ferry D. K., Foxman E. B., Giazotto F., Hansen A. E., Henny M., Hicks L. D., Hoffmann E. A., Hone J., Humphrey T. E., Llaguno M. C., Mahan G. D., Molenkamp L. W., Molenkamp L. W., Nicholls J. T., O’Dwyer M. F., Scheibner R., Scheibner R., Seol J. H., Shi L., Small J. P., Sugaya T., Thelander C.   +23 more
core   +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

Fundamentals and advances in transverse thermoelectrics

Applied Physics Express
Transverse thermoelectric effects interconvert charge and heat currents in orthogonal directions due to the breaking of either time-reversal symmetry or structural symmetry, enabling simple and versatile thermal energy harvesting and solid-state cooling ...
Hiroto Adachi, Fuyuki Ando, Takamasa Hirai, Rajkumar Modak, Matthew A. Grayson, Ken-ichi Uchida   +5 more
doaj   +1 more source

Electron-vibration effects on the thermoelectric efficiency of molecular junctions

, 2014
The thermoelectric properties of a molecular junction model, appropriate for large molecules such as fullerenes, are studied within a non-equilibrium adiabatic approach in the linear regime at room temperature.
Cataudella, V., Ninno, D., Perroni, C. A.   +2 more
core   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

Synergistic effect of tri-doping with Mn, Ge, and Bi and thermoelectric enhancement of SnTe induced by grain boundary engineering and nanostructuring

Journal of Materiomics
In this study, we propose grain boundary engineering and nanostructuring to enhance the thermoelectric performance of SnTe through tri-doping with Mn, Ge, and Bi.
Donghyun Shin, U. Sandhya Shenoy, Hyejeong Choi, Joseph Ngugi Kahiu, Eun-Ji Meang, Kwi-Il Park, Kwan-Ho Park, D. Krishna Bhat, Ho Seong Lee   +8 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

Large Tunable Thermoelectric Effects in Superconducting Spin Valves with Commercially Available Materials

PRX Energy
Recent studies have revealed magnetically controllable thermoelectric effects in superconductor/ferromagnet (S/F) structures. A tunable cryogenic thermoelectric generator needs not only a high conversion factor between electricity and heat, but also a ...
Pablo Tuero, Johanne Bratland Tjernshaugen, Carlos Sanchez, César Gonzalez-Ruano, Yuan Lu, Jacob Linder, Farkhad G. Aliev   +6 more
doaj   +1 more source

From Mechanics to Electronics: Influence of ALD Interlayers on the Multiaxial Electro‐Mechanical Behavior of Metal–Oxide Bilayers

Advanced Functional Materials, EarlyView.
Ultrathin AlOxHy interlayers between aluminum films and polymer substrates significantly improve electro‐mechanical properties of flexible thin film systems. By precisely controlling interlayer thickness using atomic layer deposition, this study identifies an optimal interlayer thickness of 5–10 nm that enhances ductility and delays cracking.
Johanna Byloff, Vivek Devulapalli, Daniele Casari, Thomas E. J. Edwards, Claus O. W. Trost, Megan J. Cordill, Shuhel Altaf Husain, Pierre‐Olivier Renault, Damien Faurie, Barbara Putz   +9 more
wiley   +1 more source

Symmetry Control of Mutually Thermoelectric Conversion in Rutile RuO2

Advanced Physics Research
Manipulating thermoelectric conversion is vital for thermal monitoring and management, which requires a tunable order coupled with thermoelectric coefficients.
Hua Bai, Jiankun Dai, Yulong Chen, Jiachen Zhang, Lei Han, Yichi Zhang, Wenxuan Zhu, Feng Pan, Dazhi Hou, Cheng Song   +9 more
doaj   +1 more source