# Mechanistic Insight into the Effect of Cu Doping on Thermoelectric Properties of Sintered Wet-Chemically Synthesized SnSe<sub>2</sub> Nanosheets

https://mdr.nims.go.jp/datasets/35c4e4ad-b743-4a5b-aa96-56ef917d6d55

## File

- [Mechanistic Insight into the Effect of Cu Doping on Thermoelectric Properties of Sintered Wet-Chemically Synthesised SnSe2 Nanosheets.pdf](https://mdr.nims.go.jp/filesets/008056d0-bc48-4de4-8167-e5a15e1ef261/download) ([Detail](https://mdr.nims.go.jp/filesets/008056d0-bc48-4de4-8167-e5a15e1ef261.md))

## Id

35c4e4ad-b743-4a5b-aa96-56ef917d6d55

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-09-10T12:58:04.151008Z

## Updated at

2025-08-25T23:30:23.928199Z

## Published at

2025-08-25T23:19:30.278852Z

## Doi

https://doi.org/10.48505/nims.4736

## First published url

https://doi.org/10.1021/acsaem.4c01698

## Date published

2024-09-09

## Recorded date published

2024-9-9

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Mechanistic Insight into the Effect of Cu Doping on Thermoelectric Properties
    of Sintered Wet-Chemically Synthesized SnSe<sub>2</sub> Nanosheets
  title_type: original
  lang: en

## Description

- description: To provide important insight into the mechanism of Cu doping in the
    n-type thermoelectric material SnSe2, SnSe2:Cu nanosheets were synthesised, sintered,
    and subjected to multifaceted analysis using a variety of analytical techniques.
    The results suggested that the intercalation of Cu+ ions in the Van der Waals
    gap causes a shift in Fermi energy and contributions to the conduction band by
    Sn s and Se p orbitals. Increased carrier concentration causes a shift to multiband
    conduction, and an ionised impurity scattering dominated carrier mobility, which
    increases with temperature as carrier energy increases since electron-phonon interactions
    are insignificant. The result was a significantly increased electrical conductivity,
    and a reduced thermal conductivity thanks to nanosheet grain boundaries. High
    ZT values of 0.2 in the in plane, and 0.6 in the out-of-plane direction were achieved
    at 667 K, thus showing the potential of Cu doped polycrystalline SnSe2 as a viable,
    sustainable n-type thermoelectric material.
  description_type: abstract
  lang: und

## Creator

- name: Simon Moore
  role: author
- name: Mari Takahashi
  role: author
  orcid: https://orcid.org/0000-0001-9252-0721
- name: Philipp Sauerschnig
  role: author
  orcid: https://orcid.org/0000-0003-4666-5262
- name: Keiji Kobayashi
  role: author
- name: Koichi Higashimine
  role: author
- name: Masanobu Miyata
  role: author
- name: Takahiro Baba
  role: author
- name: Jun Uzuhashi
  role: author
  orcid: https://orcid.org/0000-0003-2023-8158
- name: Michihiro Ohta
  role: author
  orcid: https://orcid.org/0000-0002-9093-7117
- name: Takao Mori
  role: author
  orcid: https://orcid.org/0000-0003-2682-1846
- name: Tadakatsu Ohkubo
  role: author
  orcid: https://orcid.org/0000-0003-3548-1951
- name: Shinya Maenosono
  role: author
  orcid: https://orcid.org/0000-0003-2669-8219

## Contact agent



## Publisher

organization: American Chemical Society (ACS)

## Managing organization



## Keyword

- subject: thermoelectric materials
  schema: not_defined
- subject: electron microscopy
  schema: not_defined
- subject: atom probe tomography
  schema: not_defined

## Rights

- description: This document is the Accepted Manuscript version of a Published Work
    that appeared in final form in ACS Applied Energy Materials, copyright © 2024
    American Chemical Society after peer review and technical editing by the publisher.
    To access the final edited and published work see https://doi.org/10.1021/acsaem.4c01698
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2024-08-26
end_date: 2025-08-26

## Journal

- title: ACS Applied Energy Materials
  issn: '25740962'
  volume: '7'
  issue: '17'
  start_page: 7467
  end_page: 7477

## Conference



## Related item



## Funding

- identifier: JPMJMI19A1
  funder_name: JST-Mirai Program
- funder_name: Thermal and Electric Energy Technology Foundation
- identifier: 19H02440
  funder_name: Japan Society for the Promotion of Science
- funder_name: Ichimura Foundation of New Technology

## 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: '008056d0-bc48-4de4-8167-e5a15e1ef261'
  filename: Mechanistic Insight into the Effect of Cu Doping on Thermoelectric Properties
    of Sintered Wet-Chemically Synthesised SnSe2 Nanosheets.pdf
  content_type: application/pdf
  size: 1278492
  md5: d1c3c41ae8ed54ecf4e7e86be5705ea3

## Thumbnail

fileset_id: '008056d0-bc48-4de4-8167-e5a15e1ef261'
filename: Mechanistic Insight into the Effect of Cu Doping on Thermoelectric Properties
  of Sintered Wet-Chemically Synthesised SnSe2 Nanosheets.pdf