# Enhanced High-Temperature Thermoelectric Performance of Yb<sub>4</sub>Sb<sub>3</sub> <i>via</i> Ce/Bi Co-doping and Metallic Contact Deposition for Device Integration

https://mdr.nims.go.jp/datasets/eb2e2cd5-a6c2-47a9-b133-d7c7f3ce4782

## File

- [MDR-article_Yb4Sb3_Sylvain.pdf](https://mdr.nims.go.jp/filesets/cf274a32-3f82-4508-83d1-e165b294b49c/download) ([Detail](https://mdr.nims.go.jp/filesets/cf274a32-3f82-4508-83d1-e165b294b49c.md))

## Id

eb2e2cd5-a6c2-47a9-b133-d7c7f3ce4782

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-07T01:10:14.490735Z

## Updated at

2024-12-09T07:30:49.805346Z

## Published at

2024-12-09T07:30:49.928477Z

## Doi

https://doi.org/10.48505/nims.5119

## First published url

https://doi.org/10.1021/acsaem.3c01693

## Date published

2023-10-09

## Recorded date published

2023-10-9

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Enhanced High-Temperature Thermoelectric Performance of Yb<sub>4</sub>Sb<sub>3</sub>
    <i>via</i> Ce/Bi Co-doping and Metallic Contact Deposition for Device Integration
  title_type: original
  lang: en

## Description

- description: Thermoelectrics (TE) for very high temperatures (>800 K) have numerous
    potential applications in heavy industry and space exploration. This article focuses
    on the compound Yb4Sb3 which is a promising p-type counterpart to the structurally
    related and high-performance n-type RE3Te4 (RE = Nd, La, Pr) for the fabrication
    of high-temperature TE modules. A quick and efficient method for synthesizing
    pure and fully dense Yb4Sb3 samples was developed and optimized using high-energy
    ball milling followed by reactive spark plasma sintering. The technique was utilized
    to produce a series of doubly doped CexYb4−xBi0.2Sb2.8 compounds. X-ray diffraction
    and scanning electron microscopy (SEM) were employed to establish the solubility
    limit of Ce, which was determined to be x = 0.4. TE properties of Yb4Sb3 and Ce0.4Yb3.6Bi0.2Sb2.8
    were measured up to 1273 K, revealing that the doping strategy was effective in
    reducing the charge carrier concentration and thermal conductivity. This led to
    a significant increase in the TE figure-of-merit zT from 0.2 to 0.4 at 1273 K.
    In addition, screening of metallic contacts was conducted for the development
    of a thermoelectric module with Yb4Sb3. The results showed that two robust TE
    legs with Ni and Cu contacts were successfully produced through spark plasma sintering.
    The measured electric contact resistances were very promising, with average values
    of 2 and 1 μΩ cm2 for Ni and Cu contacts, respectively.
  description_type: abstract
  lang: und

## Creator

- name: Sylvain Le Tonquesse
  role: author
  orcid: https://orcid.org/0000-0002-1939-7816
- name: Hugo Bouteiller
  role: author
  orcid: https://orcid.org/0009-0004-2132-2962
- name: Yoshitaka Matsushita
  role: author
  orcid: https://orcid.org/0000-0002-4968-8905
  organization: National Institute for Materials Science
- name: Araseli Cortez
  role: author
- name: Sabah K. Bux
  role: author
- name: Kazuki Imasato
  role: author
- name: Michihiro Ohta
  role: author
- name: Jean-François Halet
  role: author
  orcid: https://orcid.org/0000-0002-2315-4200
- name: Takao Mori
  role: author
  orcid: https://orcid.org/0000-0003-2682-1846
  organization: National Institute for Materials Science
- name: Franck Gascoin
  role: author
- name: David Berthebaud
  role: author
  orcid: https://orcid.org/0000-0002-2892-2125

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: thermoelectric
  schema: not_defined

## Rights

- description: This document is the unedited Author’s version of a Submitted Work
    that was subsequently accepted for publication in ACS Applied Energy Materials,
    copyright © 2023 American Chemical Society after peer review. To access the final
    edited and published work see https://doi.org/10.1021/acsaem.3c01693.
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: ACS Applied Energy Materials
  issn: '25740962'
  volume: '6'
  issue: '19'
  start_page: 10088
  end_page: 10097

## Conference



## Related item



## Funding

- identifier: ANR-18- CE05-0037
  funder_name: Agence Nationale de la Recherche
- identifier: PE21708
  funder_name: Japan Society for the Promotion of Science

## Instrument



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## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: cf274a32-3f82-4508-83d1-e165b294b49c
  filename: MDR-article_Yb4Sb3_Sylvain.pdf
  content_type: application/pdf
  size: 2684630
  md5: 5d1150bc23e12fca9144558464ceda06

## Thumbnail

fileset_id: cf274a32-3f82-4508-83d1-e165b294b49c
filename: MDR-article_Yb4Sb3_Sylvain.pdf