Prediction of room temperature high thermopower in n-type filled skutterudites La-Rh-Ru-Sb

Marco Fornari; David J. Singh

Prediction of room temperature high thermopower in n-type filled skutterudites La-Rh-Ru-Sb

Research output: Contribution to journal › Conference article › peer-review

Abstract

First principles density functional calculations for the La(Ru,Rh)₄Sb₁₂ system reveal a multi-valley conduction band structure with highly anisotropic, heavy mass band minima. Analysis of these results using kinetic transport theory yields high n-type thermopower above 150 μV/K in the technologically important range 150-300 K with doping in the mid 10¹⁹ cm^-3 range. The calculations also show evidence for weak Ru-Rh alloy scattering implying that reasonable mobilities are possible if La-filling can be controlled.

Original language	English
Pages (from-to)	16-18
Number of pages	3
Journal	International Conference on Thermoelectrics, ICT, Proceedings
State	Published - 1999
Event	18th International Conference on Thermoelectrics (ICT'99) - Baltimore, MD, USA Duration: Aug 29 1999 → Sep 2 1999

Cite this

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title = "Prediction of room temperature high thermopower in n-type filled skutterudites La-Rh-Ru-Sb",

abstract = "First principles density functional calculations for the La(Ru,Rh)4Sb12 system reveal a multi-valley conduction band structure with highly anisotropic, heavy mass band minima. Analysis of these results using kinetic transport theory yields high n-type thermopower above 150 μV/K in the technologically important range 150-300 K with doping in the mid 1019 cm-3 range. The calculations also show evidence for weak Ru-Rh alloy scattering implying that reasonable mobilities are possible if La-filling can be controlled.",

author = "Marco Fornari and Singh, {David J.}",

year = "1999",

language = "English",

pages = "16--18",

journal = "International Conference on Thermoelectrics, ICT, Proceedings",

issn = "1094-2734",

note = "18th International Conference on Thermoelectrics (ICT'99) ; Conference date: 29-08-1999 Through 02-09-1999",

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T1 - Prediction of room temperature high thermopower in n-type filled skutterudites La-Rh-Ru-Sb

AU - Fornari, Marco

AU - Singh, David J.

PY - 1999

Y1 - 1999

N2 - First principles density functional calculations for the La(Ru,Rh)4Sb12 system reveal a multi-valley conduction band structure with highly anisotropic, heavy mass band minima. Analysis of these results using kinetic transport theory yields high n-type thermopower above 150 μV/K in the technologically important range 150-300 K with doping in the mid 1019 cm-3 range. The calculations also show evidence for weak Ru-Rh alloy scattering implying that reasonable mobilities are possible if La-filling can be controlled.

AB - First principles density functional calculations for the La(Ru,Rh)4Sb12 system reveal a multi-valley conduction band structure with highly anisotropic, heavy mass band minima. Analysis of these results using kinetic transport theory yields high n-type thermopower above 150 μV/K in the technologically important range 150-300 K with doping in the mid 1019 cm-3 range. The calculations also show evidence for weak Ru-Rh alloy scattering implying that reasonable mobilities are possible if La-filling can be controlled.

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M3 - Conference article

AN - SCOPUS:0033297888

SN - 1094-2734

SP - 16

EP - 18

JO - International Conference on Thermoelectrics, ICT, Proceedings

JF - International Conference on Thermoelectrics, ICT, Proceedings

T2 - 18th International Conference on Thermoelectrics (ICT'99)

Y2 - 29 August 1999 through 2 September 1999

ER -

Prediction of room temperature high thermopower in n-type filled skutterudites La-Rh-Ru-Sb

Abstract

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