Synthesis and thermoelectric properties of CoSb3/WO3 thermoelectric composites

Zhao, Degang; Zuo, Min; Leng, Jinfeng; Geng, Haoran

doi:10.1016/j.intermet.2013.04.011

Cited by 40 publications

(18 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The enhancement of of xC 60 /Cu 2 GeSe 3composites should be related with the "energy filter" effect. The Seebeck coefficient can be expressed as[19]…”

mentioning

confidence: 99%

Synthesis and Thermoelectric Properties of C₆₀/Cu₂GeSe₃Composites

Zhao

Ning

et al. 2016

Journal of Nanomaterials

Self Cite

View full text Add to dashboard Cite

Nanosized C60powder was sufficiently incorporated with Cu2GeSe3powder by ball milling and C60/Cu2GeSe3composites were prepared by spark plasma sintering. C60distributed uniformly in the form of clusters and the average size of cluster was lower than 1 μm. With the addition of C60increasing, the electrical resistivity and Seebeck coefficient of C60/Cu2GeSe3composites increased while the thermal conductivity decreased significantly which resulted from the phonon scattering by C60clusters locating on the grain boundaries of Cu2GeSe3matrix. The maximumZTof 0.20 was achieved at 700 K for 0.9% C60/Cu2GeSe3sample.

show abstract

“…The enhancement of of xC 60 /Cu 2 GeSe 3composites should be related with the "energy filter" effect. The Seebeck coefficient can be expressed as[19]…”

mentioning

confidence: 99%

Synthesis and Thermoelectric Properties of C₆₀/Cu₂GeSe₃Composites

Zhao

Ning

et al. 2016

Journal of Nanomaterials

Self Cite

View full text Add to dashboard Cite

show abstract

“…The enhancement of α of x C 60 /Cu 2 SnSe 3 composites should be related to the “energy filter” effect. The Seebeck coefficient can be expressed as [23],

sans-serifα = - \frac{π}{3} \frac{k_{B}}{e} k_{B} T \frac{d \ln σ (E)}{d E} |_{E = E_{F}} - \frac{T}{n (E)} \frac{d n (E)}{d E} |_{E = E_{F}}

where k B , σ( E ), and n ( E ) are Boltzmann constant, electrical conductivity, and value of density of states (DOS), respectively. Many studies have confirmed that when nano-phases or nano-inclusions are incorporated into a semiconducting matrix material, the band bending at the inclusion/matrix interface will produce a potential energy barrier which could effectively block low energy electrons, while transmitting high energy electrons [24].…”

Section: Resultsmentioning

confidence: 99%

Enhanced Thermoelectric Performance of Cu2SnSe3-Based Composites Incorporated with Nano-Fullerene

Zhao¹,

Ning²,

Wu³

et al. 2016

Materials

Self Cite

View full text Add to dashboard Cite

In this study, nano-sized fullerene C60 powder was sufficiently mixed with Cu2SnSe3 powder by ball milling method, and the C60/Cu2SnSe3 composites were prepared by spark plasma sintering technology. The fullerene C60 distributed uniformly in the form of clusters, and the average cluster size was less than 1 μm. With increasing C60 content, the electrical conductivity of C60/Cu2SnSe3 composites decreased, while the Seebeck coefficient was enhanced. The thermal conductivity of composites decreased significantly, which resulted from the phonon scattering by the C60 clusters located on the grain boundaries of the Cu2SnSe3 matrix. The highest figure of merit ZT of 0.38 was achieved at 700 K for 0.8% C60/Cu2SnSe3 composite.

show abstract

“…Apart from the I-V-VI 2 compounds, the chalcopyrite I-III-VI 2 materials are also considered promising in the fields of optoelectronic facilities and solar cells. [192][193][194][195] In recent years, chalcopyrite materials show their potential as TE materials. [196][197][198][199][200] The p-type CuGaTe 2 , which has low ρ and high S, reveals a peak zT of 1.4 at 950 K. [201] The stoichiometry of Cu and Ag in Cu 1-x GaTe 2 [197] , Cu 1-x InTe 2 [202] , and Ag 1-x GaTe 2 [198] affects the resultant TE properties notably.…”

Section: P-type Cugate 2 (Phase Diagrams An Te Properties)mentioning

confidence: 99%

Eliciting High‐Performance Thermoelectric Materials via Phase Diagram Engineering: A Review

Deng

Yen

Tsai

et al. 2021

Adv Energy and Sustain Res

View full text Add to dashboard Cite

Alongside the evolution of technology timeline, environmental protection and energy sustainability significantly guide the research feast toward the high-performance green energy resources and technologies. [1,2] Alternatives to the fossil fuels that emit harmful greenhouse gases become desired, in which the thermoelectric (TE) materials have played an inevitable role since the 1960s. [3] One of TE technology features is the waste heat recovery via the Seebeck effect, [4] which allows the conversion between thermal energy and electricity. Such a TE generator produces precious electrical energy from any arbitrary interfaces where a temperature gradient exists, simultaneously boosting energy usage efficiency while eases global warming.Many TE materials are being explored for power generation applications, such as GeTe, [5] PbTe, [6,7] Bi 2 Te 3 , [8] and silicides. [9] Moreover, the TE cooler, which utilizes the Peltier effect, [4] emerges as a vital spot-cooling device assembled by all-solid-state materials. With the advantages of refrigerant-free and size-minimization, the TE cooler exhibits the advantages of refrigerant-free and size-minimization, which can be used as the next-generation cooling technology. [10] After more than 60 years of development, the practical application and potential coverage of TE technology are comprehensive. Nevertheless, a TE material's thermal-to-electric efficiency is still required to be boosted. In general, the TE figure-of-merit zT ¼ ðS 2 σÞT=κ positively relates to the performance of TE materials, in which the S is the Seebeck coefficient, σ ¼ ρ À1 refers to the electrical conductivity, and κ ¼ κ e þ κ L þ κ b comprises the total thermal conductivity κ, lattice thermal conductivity κ, and bipolar thermal conductivity κ b , respectively. Most importantly, the S, σ, and κ e have the carrier concentration n H as a common factor, which correlates and depends on each other. Therefore, the counterbalance between the thermal and electrical transport properties is essential to attain high zT values, which could be fulfilled by band structure engineering, [11] carrier optimization, [12,13] filtering effect, [14] , and so on. In parallel, the reduction in κ L also paves the way toward highperformance TE materials, mainly accomplished by all-scale defect engineering [15] and alloying effect. [16] Those imperfections introduce multiscale roadblocks, such as the interstitial/ antisite defect, dislocations, nanoprecipitates, and grain boundaries, aiming to impede the phonons with different wavelengths.Countless efforts bring the breakthroughs of zT value in succession. The peak zT grows less than unity in the 1960s to greater than 2.5 after 2015, [17] whose progress is slow yet steadily. Complex TE materials with various dopants are the primary targets, while different approaches can be adopted. [18,19] The

show abstract

Synthesis and thermoelectric properties of CoSb3/WO3 thermoelectric composites

Cited by 40 publications

References 22 publications

Synthesis and Thermoelectric Properties of C₆₀/Cu₂GeSe₃Composites

Synthesis and Thermoelectric Properties of C₆₀/Cu₂GeSe₃Composites

Enhanced Thermoelectric Performance of Cu2SnSe3-Based Composites Incorporated with Nano-Fullerene

Eliciting High‐Performance Thermoelectric Materials via Phase Diagram Engineering: A Review

Contact Info

Product

Resources

About

Synthesis and thermoelectric properties of CoSb3/WO3 thermoelectric composites

Cited by 40 publications

References 22 publications

Synthesis and Thermoelectric Properties of C60/Cu2GeSe3Composites

Synthesis and Thermoelectric Properties of C60/Cu2GeSe3Composites

Enhanced Thermoelectric Performance of Cu2SnSe3-Based Composites Incorporated with Nano-Fullerene

Eliciting High‐Performance Thermoelectric Materials via Phase Diagram Engineering: A Review

Contact Info

Product

Resources

About

Synthesis and Thermoelectric Properties of C₆₀/Cu₂GeSe₃Composites

Synthesis and Thermoelectric Properties of C₆₀/Cu₂GeSe₃Composites