Manipulating the Ge Vacancies and Ge Precipitates through Cr Doping for Realizing the High-Performance GeTe Thermoelectric Material.
Sign Up to like & getrecommendations! Published in 2020 at "Small"
DOI: 10.1002/smll.201906921
Abstract: GeTe alloy is a promising medium-temperature thermoelectric material but with highly intrinsic hole carrier concentration by thermodynamics, making this system to be intrinsically off-stoichiometric with Ge vacancies and Ge precipitations. Generally, an intentional increase of… read more here.
Keywords: precipitates doping; vacancies precipitates; doping realizing; thermoelectric material ... See more keywords
The influence of an arbitrarily shaped hole on the effective properties of a thermoelectric material
Sign Up to like & getrecommendations! Published in 2019 at "Acta Mechanica"
DOI: 10.1007/s00707-019-02468-x
Abstract: We examine the effective properties of a thermoelectric material in the vicinity of an arbitrarily shaped hole. Using complex variable methods, we establish closed-form representations of the electric and thermal fields in the matrix surrounding… read more here.
Keywords: properties thermoelectric; arbitrarily shaped; shaped hole; thermoelectric material ... See more keywords
Energy Conversion Efficiency of a Piezo-Thermoelectric Material
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Electronic Materials"
DOI: 10.1007/s11664-018-6383-6
Abstract: This work presents a set of one-dimensional piezo-thermoelectricity equations for semiconductors exhibiting both piezoelectric and thermoelectric effects. Diffusion current due to the carrier concentration gradient is considered in the piezo-thermoelectricity theory. The coupled equations satisfied… read more here.
Keywords: piezo thermoelectric; energy conversion; piezo; thermoelectric material ... See more keywords
Quaternary chalcogenides: Promising thermoelectric material and recent progress
Sign Up to like & getrecommendations! Published in 2019 at "Science China Materials"
DOI: 10.1007/s40843-019-9467-2
Abstract: 热电材料利用Seebeck与Pelitier效应可以实现热能和电能的相互转化, 是颇具潜力的新型功能材料. 本文聚焦四元硫属化合物 Cu 2 B II C IV Se 4 (其中, B位为Zn, Cd, Mn, Hg, C位为Si, Ge, Sn)的热电性能. 此类材料具有复杂的晶格结构, 导致其具有较低的晶格热导率, 是一类具有本征低热导的热电材料. 本文系统地总结了各类优化四元硫属化合物电学及热学的方法. 首先, 非化学计量法、 元素掺杂和 η =1定理用于改善其电学性能. 然后, 纳米结构工程可用于进一步降低其热导率. 最后, 基于文中的论述, 我们提出通过多种实验方法的结合使用, 协同调控四元硫属化合物的电、 热性能,… read more here.
Keywords: thermoelectric material; material recent; chalcogenides promising; promising thermoelectric ... See more keywords
Realizing Bi-doped α-Cu2Se as a promising near-room-temperature thermoelectric material
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2019.04.081
Abstract: Abstract Copper selenide (Cu2Se) has been extensively studied as an eco-friendly thermoelectric candidate owing to the outstanding thermoelectric performance of its high-temperature β-phase. In this study, we propose that α-Cu2Se is also a promising thermoelectric… read more here.
Keywords: temperature; room temperature; cu2se; thermoelectric material ... See more keywords
Thermal stability of Ag9GaSe6 and its potential as a functionally graded thermoelectric material
Sign Up to like & getrecommendations! Published in 2019 at "Chemical Engineering Journal"
DOI: 10.1016/j.cej.2019.05.179
Abstract: Abstract Even though Ag9GaSe6 shows competitive thermoelectric performance comparing with commercial thermoelectric materials, the thermal stability of this argyrodite-type superionic conductor limits its practical application. The present work investigates the electrical transport behavior of Ag9GaSe6… read more here.
Keywords: thermal stability; functionally graded; graded thermoelectric; stability ... See more keywords
Thermoelectric and stress distributions around a smooth cavity in thermoelectric material
Sign Up to like & getrecommendations! Published in 2022 at "International Journal of Mechanical Sciences"
DOI: 10.1016/j.ijmecsci.2022.107198
Abstract: Thermoelectric materials have attracted more and more attention since they are friendly to the environment and have potentials for sustainable and renewable energy applications. As typically brittle semiconductors with low mechanical strength and always subjected… read more here.
Keywords: stress concentration; stress; cavity; thermoelectric material ... See more keywords
Incorporation of indium into the Zn13Sb10 thermoelectric material
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2018.11.339
Abstract: Abstract The composition of the In-substituted Zn13Sb10 phases follows the Zn13-1.5xInxSb10 charge-balanced formula and the reduction in the Zn content is due to the In3+ oxidation state, compared to the Zn2+ oxidation state. Zn deficiency… read more here.
Keywords: indium zn13sb10; zn13sb10 thermoelectric; zn13sb10; incorporation ... See more keywords
Novel n-type thermoelectric material of ZnIn2Se4
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Alloys and Compounds"
DOI: 10.1016/j.jallcom.2019.05.238
Abstract: Abstract Besides enhancing thermoelectric performance of the existing thermoelectric materials, many efforts have been focused on the exploration of novel thermoelectric materials with potentially high performance typically. This is largely guided by the concept of… read more here.
Keywords: novel type; lattice; type thermoelectric; material ... See more keywords
Nanostructured calcium cobalt oxide Ca3Co4O9 as thermoelectric material. Effect of nanostructure on local coordination, Co charge state and thermoelectric properties
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physics and Chemistry of Solids"
DOI: 10.1016/j.jpcs.2020.109474
Abstract: Abstract The preparation of pure Ca3Co4O9 materials in the form of dense bodies made of nano-sized grains was investigated by combining a sol-gel route, different thermal cycles, a ball-milling post-treatment and final densification with HP-FAST… read more here.
Keywords: state; ca3co4o9; nano sized; thermoelectric material ... See more keywords
High performance n-type thermoelectric material based on naphthalenediimide radical anions
Sign Up to like & getrecommendations! Published in 2021 at "Materials Today Energy"
DOI: 10.1016/j.mtener.2021.100710
Abstract: Abstract An ideal organic thermoelectric (TE) material should possesses features including low-cost, high performance, easy to process, and non-toxic, but it’s rare to find materials that meets these requirements. Naphthalenediimide (NDI), as a common and… read more here.
Keywords: performance; performance type; thermoelectric material; high performance ... See more keywords