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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Journal ArticleDOI
Heterostructured Approaches to Efficient Thermoelectric Materials
Yichi Zhang,Galen D. Stucky +1 more
TL;DR: In this paper, a brief summary of some of the current bulk-scaled approaches that might help guide researchers in the design of optimal heterostructures in large quantity for the further improvement of thermoelectric conversion efficiency is given.
Journal ArticleDOI
High thermoelectric power factor in Cu–Ni alloy originate from potential barrier scattering of twin boundaries
Jun Mao,Jun Mao,Yumei Wang,Yumei Wang,Hee Seok Kim,Zihang Liu,Zihang Liu,Udara Saparamadu,Fei Tian,Keshab Dahal,Jingying Sun,Shuo Chen,Weishu Liu,Zhifeng Ren +13 more
TL;DR: In this paper, a nanoscale twins were introduced into the microstructure of constantan alloy to enhance the thermoelectric performance of Cu56Ni42Mn2 alloy.
Journal ArticleDOI
Realizing a stable high thermoelectric zT ∼ 2 over a broad temperature range in Ge 1−x−y Ga x Sb y Te via band engineering and hybrid flash-SPS processing
Bhuvanesh Srinivasan,Bhuvanesh Srinivasan,Alain Gellé,Francesco Gucci,Catherine Boussard-Plédel,Bruno Fontaine,Régis Gautier,Jean-François Halet,Michael J. Reece,Bruno Bureau +9 more
TL;DR: In this paper, the electronic bands in Ga-Sb codoped GeTe have been manipulated by hybrid flash-spark plasma sintering to achieve a remarkably high and stable thermoelectric figure of merit close to 2.
Posted Content
A Comprehensive Review of Heat Transfer in Thermoelectric Materials and Devices
TL;DR: In this article, the authors discuss heat transfer in thermoelectric materials and devices, especially phonon engineering to reduce the lattice thermal conductivity, which requires a fundamental understanding of nanoscale heat conduction physics.
Journal ArticleDOI
Seebeck Tuning in Chalcogenide Nanoplate Assemblies by Nanoscale Heterostructuring
Rutvik J. Mehta,Chinnathambi Karthik,Binay Singh,Ranganath Teki,Theo Borca-Tasciuc,Ganpati Ramanath +5 more
TL;DR: A new approach of tuning the Seebeck coefficient of nanoplate assemblies of single-crystal pnictogen chalcogenides by heterostructuring the nanoplates with tellurium nanocrystals is demonstrated.