Journal ArticleDOI
Demonstration of electron filtering to increase the Seebeck coefficient in In 0.53 Ga 0.47 As ∕ In 0.53 Ga 0.28 Al 0.19 As superlattices
Joshua M. O. Zide,Daryoosh Vashaee,Zhixi Bian,Gehong Zeng,John E. Bowers,Ali Shakouri,Arthur C. Gossard +6 more
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In this paper, the authors explore electron filtering as a technique to increase the Seebeck coefficient and the thermoelectric power factor of heterostructured materials over that of the bulk.Abstract:
In this paper, we explore electron filtering as a technique to increase the Seebeck coefficient and the thermoelectric power factor of heterostructured materials over that of the bulk We present a theoretical model in which the Seebeck coefficient and the power factor can be increased in an ${\mathrm{In}}_{053}{\mathrm{Ga}}_{047}\mathrm{As}$-based composite material Experimental measurements of the cross-plane Seebeck coefficient are presented and confirm the importance of the electron filtering technique to decouple the electrical conductivity and Seebeck coefficient to increase the thermoelectric power factorread more
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Defect-engineered Si1−xGex alloy under electron beam irradiation for thermoelectrics
TL;DR: In this article, a defect-engineered thermoelectric material using Si1−xGex alloys grown on a cplane sapphire substrate via electron beam (E-beam) irradiation was reported.
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Work Function of Bismuth Telluride: First-Principles Approach
TL;DR: In this paper, the reference potential and the vacuum energy levels were extracted from the Bi2Te3 (0001) surface structure using a reference potential method based on the density functional theory.
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Anomalous enhancement of Seebeck coefficients of the graphene/hexagonal boron nitride composites
Jun Nakamura,Akira Akaishi +1 more
TL;DR: In this article, the potential of graphene-based composites as thermoelectric materials was investigated and a focused investigation of their recent progress regarding the thermopower enhancement in nanoarchitectonics, superlattices, and composites consisting of graphene and hexagonal BN nanoribbons.
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Achieving High Thermoelectric Performance in Rare-Earth Element-Free CaMg2Bi2 with High Carrier Mobility and Ultralow Lattice Thermal Conductivity.
TL;DR: Ba substitution on cation site achieves a sharp reduction in lattice thermal conductivity through enhanced point defects scattering without the obvious sacrifice of high carrier mobility, and thus improves thermoelectric properties and makes the present Zintl phase CaMg2Bi2 more competitive in practical application.
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Enhanced thermoelectric power factor in wet chemical synthesized Sb2Te3 by the incorporation of (GO/r-GO)
TL;DR: In this paper, the thermoelectric transport properties of bare and (GO/r-GO) composites of Sb2Te3 synthesized via simple wet chemical method at the temperature of 100 °C were investigated.