Results 111 to 120 of about 76,153 (324)

Silver Ion‐Mediated [hk1]‐Oriented Sb2Se3 Crystal Growth for Efficient Photoelectrochemical Hydrogen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
Ag+‐mediated hydrothermal crystal engineering promotes preferential [hk1]‐oriented growth of Sb2Se3 via an ultrathin MoOx interlayer, improving crystallinity and suppressing non‐radiative recombination. The optimized Ag+ treatment photocathode delivers 24.7 mA cm−2 at 0 VRHE and improved stability, revealing an ion‐modulated route to high‐performance ...
Ziying Zhang   +10 more
wiley   +1 more source

Topological Flat-Band-Driven Metallic Thermoelectricity

open access: yesPhysical Review X
Materials where flattened electronic dispersions arise from destructive phase interference, rather than localized orbitals, have emerged as promising platforms for studying emergent quantum phenomena.
Fabian Garmroudi   +15 more
doaj   +1 more source

Nonlinear thermoelectricity in point-contacts at pinch-off: a catastrophe aids cooling

open access: yes, 2013
We consider refrigeration and heat engine circuits based on the nonlinear thermoelectric response of point-contacts at pinch-off, allowing for electrostatic interaction effects.
Whitney, Robert S.
core   +3 more sources

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma   +4 more
wiley   +1 more source

Nonlocal thermoelectric detection of interaction and correlations in edge states

open access: yesPhysical Review Research
Nonlocal thermoelectricity is proposed as a direct probe of interactions, nonthermal states, and the effect of correlations in the nonequilibrium heat transport between 1D quantum channels. In copropagating quantum Hall edge states contacted at different
Alessandro Braggio   +3 more
doaj   +1 more source

Revisiting some chalcogenides for thermoelectricity

open access: yesScience and Technology of Advanced Materials, 2012
Thermoelectric materials that are efficient well above ambient temperature are needed to convert waste-heat into electricity. Many thermoelectric oxides were investigated for this purpose, but their power factor (PF) values were too small (~10−4 W m−1 K ...
Antoine Maignan, Emmanuel Guilmeau, Franck Gascoin, Yohann Bréard and Vincent Hardy
doaj   +1 more source

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

open access: yesAdvanced 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   +12 more
wiley   +1 more source

Solution of Thermoelectricity Problems Energy Method

open access: yesE3S Web of Conferences, 2018
On the basis of the fundamental laws of conservation of energy in conjunction with local quadratic spline functions was developed a universal computing algorithm, a method and associated software, which allows to investigate the Thermophysical insulated ...
Niyazbek Muheyat   +3 more
doaj   +1 more source

Giant thermoelectric effect in graphene-based topological insulators with nanopores

open access: yes, 2014
Designing thermoelectric materials with high figure of merit $ZT=S^2 G T/\kappa$ requires fulfilling three often irreconcilable conditions, i.e., the high electrical conductance $G$, small thermal conductance $\kappa$ and high Seebeck coefficient $S ...
Bahramy, Mohammad Saeed   +3 more
core   +1 more source

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