Results 41 to 50 of about 159,468 (366)

Thermoelectrics

open access: yes3D Printing for Energy Applications, 2021
Thermoelectrics (TEs) are materials that convert heat to electricity via the Seebeck effect. This unique ability of TEs is dependent upon electronic and thermal properties. The dimensionless figure of merit (zT) is used to quantify TE performance, and is
Fredrick Kim, Seungjun Choo, J. Son
semanticscholar   +1 more source

Tunable quantum gaps to decouple carrier and phonon transport leading to high-performance thermoelectrics

open access: yesNature Communications, 2022
Thermoelectrics enable direct heat-to-electricity transformation, but their performance has so far been restricted by the closely coupled carrier and phonon transport. Here, we demonstrate that the quantum gaps, a class of planar defects characterized by
Yong Yu   +17 more
semanticscholar   +1 more source

The best thermoelectric. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1996
What electronic structure provides the largest figure of merit for thermoelectric materials? To answer that question, we write the electrical conductivity, thermopower, and thermal conductivity as integrals of a single function, the transport distribution.
Gerald D. Mahan, Jorge O. Sofo
openaire   +3 more sources

Thermoelectric properties of Spark plasma sintered PbTe synthesized without any surfactant and organic solvent

open access: yesMaterials Research Express, 2021
We report a systematic investigation on structural and thermoelectric properties of Spark plasma sintered Lead telluride synthesized by hydrothermal route and a low temperature aqueous chemical route without using any organic solvent and surfactant.
Pradeep Kumar Sharma   +5 more
doaj   +1 more source

Off-centering thermoelectrics

open access: yesNext Materials, 2023
Thermoelectric (TE) materials that can achieve mutual conversion of electricity and heat has experienced remarkable growth over the past two decades. While many TE materials exhibit high levels of symmetry, characterized by pronounced band degeneracy ...
Chenghao Xie, Xinfeng Tang, Gangjian Tan
doaj  

Wet-Chemical Synthesis and Applications of Semiconductor Nanomaterial-Based Epitaxial Heterostructures

open access: yesNano-Micro Letters, 2019
Semiconductor nanomaterial-based epitaxial heterostructures with precisely controlled compositions and morphologies are of great importance for various applications in optoelectronics, thermoelectrics, and catalysis. Until now, various kinds of epitaxial
Junze Chen   +5 more
doaj   +1 more source

Effect of Sintering Temperature on the Thermoelectric Properties of Ag2Se Fabricated by Spark Plasma Sintering with High Compression

open access: yesAdvanced Energy & Sustainability Research, 2023
Silver selenide (Ag2Se) is a high‐performance thermoelectric (TE) material near room temperature. This research improves its TE figure‐of‐merit (ZT) by varying the sintering temperatures (423–723 K) in the spark plasma sintering (SPS) process with high ...
Dulyawich Palaporn   +2 more
doaj   +1 more source

Structural Evolution from Neutron Powder Diffraction of Nanostructured SnTe Obtained by Arc Melting

open access: yesCrystals, 2022
Among chalcogenide thermoelectric materials, SnTe is an excellent candidate for intermediate temperature applications, in replacement of toxic PbTe. We have prepared pure polycrystalline SnTe by arc melting, and investigated the structural evolution by ...
Javier Gainza   +9 more
doaj   +1 more source

Recent advances on thermoelectric materials [PDF]

open access: yesJ.-C. Zheng, Front. Phys. China, 2008, 3(3): 269-279, 2011
By converting waste heat into electricity through the thermoelectric power of solids without producing greenhouse gas emissions, thermoelectric generators could be an important part of the solution to today's energy challenge. There has been a resurgence in the search for new materials for advanced thermoelectric energy conversion applications. In this
arxiv   +1 more source

Thermoelectric properties of in-plane $90^0$-bent graphene nanoribbons with nanopores [PDF]

open access: yes, 2021
We study the thermoelectric performance of $90^0$-bent graphene nanoribbons containing nanopores for optimized design of multiple functional circuits including thermoelectric generators. We show that the thermal conductance of the $90^0$-bent ribbons is lower from few times to an order of magnitude compared to that of pristine armchair and zigzag ...
arxiv   +1 more source

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