# Active Diffusion Controlled Dual Stability in Thermoelectrics for Sustainable Heat Harvesting

https://mdr.nims.go.jp/datasets/7107856a-af3d-404e-bc2d-1a3622b9f872

## Files

- [Advanced Materials---Active Diffusion Controlled Dual Stability in Thermoelectrics for Sustainable Heat.pdf](https://mdr.nims.go.jp/filesets/c89b2296-758e-4964-8a78-e873754bb6fd/download) ([Detail](https://mdr.nims.go.jp/filesets/c89b2296-758e-4964-8a78-e873754bb6fd.md))

## Id

7107856a-af3d-404e-bc2d-1a3622b9f872

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-11-08T15:23:29.410746Z

## Updated at

2025-11-11T03:30:33.121389Z

## Published at

2025-11-11T03:22:34.519358Z

## Doi



## First published url

https://doi.org/10.1002/adma.202508270

## Date published

2025-06-26

## Recorded date published

2025-9

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Active Diffusion Controlled Dual Stability in Thermoelectrics for Sustainable
    Heat Harvesting
  title_type: original
  lang: en

## Description

- description: Thermoelectric technology offers a promising pathway toward global
    sustainability by harvesting waste heat. However, long-term stability is hindered
    by inevitable elemental diffusion, degrading both the thermoelectric junction
    and material properties, which prevents the realization of power generation applications.
    Here, we achieve dual and superior stability in high-performance Mg3(Bi,Sb)2,
    surpassing prior studies that focus on either junction or material stability.
    By introducing an Mg layer at the junction, we suppress detrimental Mg diffusion
    and compensate for Mg loss in the material, effectively stabilizing both junctions
    and materials for over 100 days. As a result, a thermoelectric module with 30-day-aged
    Mg3(Bi,Sb)2 is able to maintain an outstanding power density of 0.45 W cm−2 and
    remarkable conversion efficiency of 8.6%, demonstrating unprecedented stability.
    These findings provide new insights into thermoelectric junction engineering,
    shifting from interface optimization to comprehensive stabilization, advancing
    the practical viability of thermoelectric energy harvesting for renewable and
    waste heat applications.
  description_type: abstract
  lang: und

## Creator

- name: Longquan Wang
  role: author
  orcid: https://orcid.org/0009-0009-9910-9770
  organization: National Institute for Materials Science
- name: Airan Li
  role: author
  orcid: https://orcid.org/0009-0004-7318-4821
  organization: National Institute for Materials Science
- name: Xinzhi Wu
  role: author
  organization: National Institute for Materials Science
- name: Jiankang Li
  role: author
  organization: National Institute for Materials Science
- name: Takeo Ohsawa
  role: author
  orcid: https://orcid.org/0000-0001-7528-8940
  organization: National Institute for Materials Science
- name: Takao Mori
  role: author
  orcid: https://orcid.org/0000-0003-2682-1846
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: thermoelectric
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Advanced Materials
  issn: '15214095'
  volume: '37'
  issue: '38'
  article_number: '2508270'

## 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



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: c89b2296-758e-4964-8a78-e873754bb6fd
  filename: Advanced Materials---Active Diffusion Controlled Dual Stability in Thermoelectrics
    for Sustainable Heat.pdf
  content_type: application/pdf
  size: 3510588
  md5: 21b90cf48a44446c011b9223fe56a5cb

## Thumbnail

fileset_id: c89b2296-758e-4964-8a78-e873754bb6fd
filename: Advanced Materials---Active Diffusion Controlled Dual Stability in Thermoelectrics
  for Sustainable Heat.pdf