# Thermoelectric performance of n-type Bi2S3-alloyed Bi2Te2.7Se0.3

https://mdr.nims.go.jp/datasets/b00aca5f-ec3e-42b2-9b4b-79c4b434d97d

## File

- [Physica B--Thermoelectric performance of n-type Bi2S3-alloyed Bi2Te2.7Se0.3.pdf](https://mdr.nims.go.jp/filesets/1cfcbe44-13a5-46cd-8394-f0e3e0f8a3ed/download) ([Detail](https://mdr.nims.go.jp/filesets/1cfcbe44-13a5-46cd-8394-f0e3e0f8a3ed.md))

## Id

b00aca5f-ec3e-42b2-9b4b-79c4b434d97d

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-10-05T11:19:21.595721Z

## Updated at

2024-10-07T05:41:47.934587Z

## Published at

2024-10-07T05:41:48.020957Z

## Doi



## First published url

https://doi.org/10.1016/j.physb.2024.416299

## Date published

2024-07-16

## Recorded date published

2024-10

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Thermoelectric performance of n-type Bi2S3-alloyed Bi2Te2.7Se0.3
  title_type: original
  lang: en

## Description

- description: The effect of isovalent sulfur substitution on the thermoelectric properties
    of n-type Bi2Te2.7Se0.3 alloy has been studied systematically. At low sulfur concentrations,
    where the samples are single phase, changes in defect chemistry and density of
    states impacted significantly electrical resistivity and thermopower. Isovalent
    sulfur substitution enhanced thermopower and reduced thermal conductivity for
    both single and multiphase samples. This reduction in thermal conductivity was
    particularly noticeable in samples containing Bi2S3-based secondary phase, reaching
    a low thermal conductivity of ∼0.3 W m−1 K−1 at 525 K. A maximum figure of merit,
    zT, of 0.55 was achieved for the sample with the highest sulfur content, demonstrating
    the potential of this approach to optimise the thermoelectric performance of Bi2Te3-based
    materials.
  description_type: abstract
  lang: und

## Creator

- name: Raphael Fortulan
  role: author
- name: Adam Brown
  role: author
- name: Illia Serhiienko
  role: author
  orcid: https://orcid.org/0000-0002-3072-9412
  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: Sima Aminorroya Yamini
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: thermoelectric
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: 'Physica B: Condensed Matter'
  issn: '09214526'
  volume: '691'
  article_number: '416299'

## Conference



## Related item



## Funding

- funder_name: EPSRC
- funder_name: JST Mirai
- funder_name: Horizon 2020

## 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



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## Custom property



## Fileset

- id: 1cfcbe44-13a5-46cd-8394-f0e3e0f8a3ed
  filename: Physica B--Thermoelectric performance of n-type Bi2S3-alloyed Bi2Te2.7Se0.3.pdf
  content_type: application/pdf
  size: 3730612
  md5: 6dad3dae68e09329c591c80124470fcb

## Thumbnail

fileset_id: 1cfcbe44-13a5-46cd-8394-f0e3e0f8a3ed
filename: Physica B--Thermoelectric performance of n-type Bi2S3-alloyed Bi2Te2.7Se0.3.pdf