# Improving Thermoelectric Conversion Efficiency of Mg<sub>3</sub>(Sb, Bi)<sub>2</sub>-Based TE Materials via Interface Contact Layer Optimization

https://mdr.nims.go.jp/datasets/eda3820a-5a77-4d20-b6c0-1f6e3bbc469e

## File

- [ACS Applied Energy Materials-Final.docx](https://mdr.nims.go.jp/filesets/b3a0f955-9b96-419d-b938-388d842badbe/download) ([Detail](https://mdr.nims.go.jp/filesets/b3a0f955-9b96-419d-b938-388d842badbe.md))

## Id

eda3820a-5a77-4d20-b6c0-1f6e3bbc469e

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-12-24T05:43:10.593393Z

## Updated at

2024-12-25T07:30:47.118469Z

## Published at

2024-12-25T07:30:47.195670Z

## Doi

https://doi.org/10.48505/nims.5219

## First published url

https://doi.org/10.1021/acsaem.4c02794

## Date published

2024-12-23

## Recorded date published

2024-12-23

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Improving Thermoelectric Conversion Efficiency of Mg<sub>3</sub>(Sb, Bi)<sub>2</sub>-Based
    TE Materials via Interface Contact Layer Optimization
  title_type: original
  lang: en

## Description

- description: Mg3(Sb, Bi)2-based compounds have recently attracted intense attention
    as thermoelectric (TE) materials for power generation and cooling applications
    because of their high TE performance. The contact interface layers play a crucial
    role in achieving high conversion efficiency of TE devices. Iron contacts have
    often been used for the Mg3(Sb, Bi)2 compound, however, a large drawback for device
    fabrication is their incompatibility with solder. In this study, we developed
    Cupronickel as a potential new interface contact layer for Mg3(Sb, Bi)2. A crack-free
    interface with low specific contact resistance of ~5 µΩcm2, enables a maximum
    conversion efficiency (&eta;max) of ~8% for the single-leg Cupronickel /Mg3(Sb,
    Bi)2/Cupronickel. Additionally, a &eta;max of ~7.8% is realized for a 2-pair module
    of Mg3(Sb, Bi)2 and MgAgSb at a temperature difference (ΔT) of 277 K. The optimization
    of the Cupronickel contact layer in this study has the potential to enhance the
    conversion efficiency of Mg3(Sb, Bi)2-based compounds.
  description_type: abstract
  lang: und

## Creator

- name: Raju Chetty
  role: author
  orcid: https://orcid.org/0000-0003-1072-8241
- name: Jayachandran Babu
  role: author
  orcid: https://orcid.org/0000-0002-1182-6655
- name: Takao Mori
  role: author
  orcid: https://orcid.org/0000-0003-2682-1846

## 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 © 2024 American Chemical Society after peer review. To access the final
    edited and published work see https://doi.org/10.1021/acsaem.4c02794.
  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: '7'
  issue: '24'
  start_page: 12112
  end_page: 12118

## Conference



## Related item



## Funding

- identifier: JPMJMI19A1
  funder_name: JST-Mirai Program

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



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## Fileset

- id: b3a0f955-9b96-419d-b938-388d842badbe
  filename: ACS Applied Energy Materials-Final.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 1449547
  md5: 1cbfe717010922c86b7200d061820d7d

## Thumbnail

fileset_id: b3a0f955-9b96-419d-b938-388d842badbe
filename: ACS Applied Energy Materials-Final.docx