# Thermoelectric properties and effective medium theory analysis on the (GeTe)1-x(InTe)x composites

https://mdr.nims.go.jp/datasets/a1ed7342-966d-431c-9942-062619485ba2

## File

- [manuscript_GeTe+InTe_Songyi.docx](https://mdr.nims.go.jp/filesets/23bb6072-374c-41db-87f7-c1dbcf554991/download) ([Detail](https://mdr.nims.go.jp/filesets/23bb6072-374c-41db-87f7-c1dbcf554991.md))

## Id

a1ed7342-966d-431c-9942-062619485ba2

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-10-05T11:59:46.091012Z

## Updated at

2024-10-08T07:30:28.307586Z

## Published at

2024-10-08T07:30:28.412677Z

## Doi

https://doi.org/10.48505/nims.4805

## First published url

https://doi.org/10.1016/j.jallcom.2024.175316

## Date published

2024-06-28

## Recorded date published

2024-10

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: Thermoelectric properties and effective medium theory analysis on the (GeTe)1-x(InTe)x
    composites
  title_type: original
  lang: en

## Description

- description: We employed the p-type semiconductor InTe as an extrinsic phase mixing
    in the GeTe matrix for thermoelectric properties investigations on the (GeTe)1-x(InTe)x
    (x=0, 0.02, 0.04, 0.06, and 0.08) composites. We observed notable phenomena that
    a small amount of InTe has a significant influence on the thermoelectric properties
    as the primary host matrix in the (GeTe)1-x(InTe)x (x=0.02, 0.04, 0.06, and 0.08)
    composites. Even for small concentrations of InTe which possess lower thermal
    and electrical conductivities compared to those of GeTe, the thermoelectric properties
    of the (GeTe)1-x(InTe)x (x=0.02, 0.04, 0.06, and 0.08) composites are primarily
    influenced by the properties of InTe. We systematically elucidated the electrical
    conductivity of the (GeTe)1-x(InTe)x (x=0.02, 0.04, 0.06, and 0.08) composites
    through the application of effective medium theory (EMT). It is found that the
    effective media of the (GeTe)1-x(InTe)x (x=0.02, 0.04, 0.06, and 0.08) composites
    is an asymmetric medium insulator. The addition of InTe into GeTe reveals a significant
    decrease in total thermal conductivity due to reductions in both electronic and
    lattice thermal conductivity. Particularly, the decrease in lattice thermal conductivity
    was attributed to an increase in internal strain within the lattice induced by
    the addition of InTe. Consequently, the ZT values of the composite significantly
    increase across all temperature ranges. This study suggests that developing composites
    is an effective approach for enhancing thermoelectric performance, comparable
    to elemental doping, and demonstrates the ability to analyze the electrical properties
    of composite materials using EMT.
  description_type: abstract
  lang: und

## Creator

- name: Song Yi Back
  role: author
  orcid: https://orcid.org/0009-0000-8890-1484
  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
- name: Jong-Soo Rhyee
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: thermoelectric
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of Alloys and Compounds
  issn: '09258388'
  volume: '1002'
  article_number: '175316'

## Conference



## Related item



## Funding



## 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: 23bb6072-374c-41db-87f7-c1dbcf554991
  filename: manuscript_GeTe+InTe_Songyi.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 2781518
  md5: 23e2a717bac239fc853be7628fe64ed1

## Thumbnail

fileset_id: 23bb6072-374c-41db-87f7-c1dbcf554991
filename: manuscript_GeTe+InTe_Songyi.docx