English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Thermoelectric characterization of the clathrate-I solid solution Ba8-δAuxGe46-x

Baitinger, M., Nguyen, H. D., Candolfi, C., Antonyshyn, I., Meier-Kirchner, K., Veremchuk, I., et al. (2021). Thermoelectric characterization of the clathrate-I solid solution Ba8-δAuxGe46-x. Applied Physics Letters, 119(6): 063902, pp. 1-6. doi:10.1063/5.0059166.

Item is

Basic

show hide
Genre: Journal Article

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Baitinger, Michael1, Author              
Nguyen, Hong Duong2, Author
Candolfi, Christophe2, Author
Antonyshyn, Iryna3, Author              
Meier-Kirchner, Katrin4, Author              
Veremchuk, Igor2, Author
Razinkov, Valeriy2, Author
Havryluk, Mykola2, Author
Cardoso-Gil, Raul5, Author              
Burkhardt, Ulrich6, Author              
Böhme, Bodo7, Author              
Anatychuk, Lukyan2, Author
Grin, Yuri8, Author              
Affiliations:
1Michael Baitinger, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863416              
2External Organizations, ou_persistent22              
3Iryna Antonyshyn, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863412              
4Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
5Raul Cardoso, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863420              
6Ulrich Burkhardt, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863422              
7Bodo Böhme, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863408              
8Juri Grin, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863413              

Content

show
hide
Free keywords: -
 Abstract: Clathrate-I-based materials are promising for waste-heat recovering applications via thermoelectric (TE) effects. However, the lack of highly efficient p-type materials hampers the development of clathrate-based TE devices. In this work, the synthesis of the p-type semiconductor Ba7.8Au5.33Ge40.67 with clathrate-I structure is up-scaled by steel-quenching and spark plasma sintering treatment at 1073 K. A thermoelectric figure of merit ZT approximate to 0.9 at 670 K is reproducibly obtained, and 40 chemically homogeneous module legs of 5 x 5 x 7 mm(3) are fabricated. By using a carbon layer as a diffusion barrier, electrical contacts are sustainable at elevated application temperatures. Eight couples with the clathrate-I compounds Ba7.8Au5.33Ge40.67 as p-type and Ba8Ga16Ge30 as n-type materials are integrated into a TE module with an output power of 0.2 W achieved under a temperature difference Delta T = 380 K (T-1 = 673 K and T-2 = 293 K). The thermoelectric performance of Ba7.8Au5.33Ge40.67 demonstrates the potential of type-I clathrates for waste heat recycling.

Details

show
hide
Language(s): eng - English
 Dates: 2021-08-122021-08-12
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: ISI: 000684346200005
DOI: 10.1063/5.0059166
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Applied Physics Letters
  Abbreviation : Appl. Phys. Lett.
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Melville, NY : American Institute of Physics
Pages: - Volume / Issue: 119 (6) Sequence Number: 063902 Start / End Page: 1 - 6 Identifier: ISSN: 0003-6951
CoNE: https://pure.mpg.de/cone/journals/resource/954922836223