---
_id: '14777'
abstract:
- lang: eng
  text: The effects of the partial V-substitution for Ag on the thermoelectric (TE)
    properties are investigated for a flexible semiconducting compound Ag2S0.55Se0.45.
    Density functional theory calculations predict that such a partial V-substitution
    constructively modifies the electronic structure near the bottom of the conduction
    band to improve the TE performance. The synthesized Ag1.97V0.03S0.55Se0.45 is
    found to possess a TE dimensionless figure-of-merit (ZT) of 0.71 at 350 K with
    maintaining its flexible nature. This ZT value is relatively high in comparison
    with those reported for flexible TE materials below 360 K. The increase in the
    ZT value is caused by the enhanced absolute value of the Seebeck coefficient with
    less significant variation in electrical resistivity. The high ZT value with the
    flexible nature naturally allows us to employ the Ag1.97V0.03S0.55Se0.45 as a
    component of flexible TE generators.
acknowledgement: This work received financial support partially from Japan Science
  and Technology Agency (JST) CREST Grant No. JPMJCR18I2, Japan. The powder-XRD experiments
  were conducted at BL5S2 of Aichi Synchrotron Radiation Center, Aichi Science & Technology
  Foundation, Aichi, Japan (Proposal No. 202301057).
article_number: '125206'
article_processing_charge: Yes
article_type: original
author:
- first_name: Kosuke
  full_name: Sato, Kosuke
  last_name: Sato
- first_name: Saurabh
  full_name: Singh, Saurabh
  id: 12d625da-9cb3-11ed-9667-af09d37d3f0a
  last_name: Singh
  orcid: 0000-0003-2209-5269
- first_name: Itsuki
  full_name: Yamazaki, Itsuki
  last_name: Yamazaki
- first_name: Keisuke
  full_name: Hirata, Keisuke
  last_name: Hirata
- first_name: Artoni Kevin R.
  full_name: Ang, Artoni Kevin R.
  last_name: Ang
- first_name: Masaharu
  full_name: Matsunami, Masaharu
  last_name: Matsunami
- first_name: Tsunehiro
  full_name: Takeuchi, Tsunehiro
  last_name: Takeuchi
citation:
  ama: Sato K, Singh S, Yamazaki I, et al. Improvement of thermoelectric performance
    of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag.
    <i>AIP Advances</i>. 2023;13(12). doi:<a href="https://doi.org/10.1063/5.0171888">10.1063/5.0171888</a>
  apa: Sato, K., Singh, S., Yamazaki, I., Hirata, K., Ang, A. K. R., Matsunami, M.,
    &#38; Takeuchi, T. (2023). Improvement of thermoelectric performance of flexible
    compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag. <i>AIP Advances</i>.
    AIP Publishing. <a href="https://doi.org/10.1063/5.0171888">https://doi.org/10.1063/5.0171888</a>
  chicago: Sato, Kosuke, Saurabh Singh, Itsuki Yamazaki, Keisuke Hirata, Artoni Kevin
    R. Ang, Masaharu Matsunami, and Tsunehiro Takeuchi. “Improvement of Thermoelectric
    Performance of Flexible Compound Ag2S0.55Se0.45 by Means of Partial V-Substitution
    for Ag.” <i>AIP Advances</i>. AIP Publishing, 2023. <a href="https://doi.org/10.1063/5.0171888">https://doi.org/10.1063/5.0171888</a>.
  ieee: K. Sato <i>et al.</i>, “Improvement of thermoelectric performance of flexible
    compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag,” <i>AIP Advances</i>,
    vol. 13, no. 12. AIP Publishing, 2023.
  ista: Sato K, Singh S, Yamazaki I, Hirata K, Ang AKR, Matsunami M, Takeuchi T. 2023.
    Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45
    by means of partial V-substitution for Ag. AIP Advances. 13(12), 125206.
  mla: Sato, Kosuke, et al. “Improvement of Thermoelectric Performance of Flexible
    Compound Ag2S0.55Se0.45 by Means of Partial V-Substitution for Ag.” <i>AIP Advances</i>,
    vol. 13, no. 12, 125206, AIP Publishing, 2023, doi:<a href="https://doi.org/10.1063/5.0171888">10.1063/5.0171888</a>.
  short: K. Sato, S. Singh, I. Yamazaki, K. Hirata, A.K.R. Ang, M. Matsunami, T. Takeuchi,
    AIP Advances 13 (2023).
date_created: 2024-01-10T09:26:08Z
date_published: 2023-12-01T00:00:00Z
date_updated: 2024-01-10T13:49:09Z
day: '01'
ddc:
- '540'
department:
- _id: MaIb
doi: 10.1063/5.0171888
external_id:
  isi:
  - '001114917200005'
file:
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  date_created: 2024-01-10T13:47:31Z
  date_updated: 2024-01-10T13:47:31Z
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has_accepted_license: '1'
intvolume: '        13'
isi: 1
issue: '12'
keyword:
- General Physics and Astronomy
language:
- iso: eng
month: '12'
oa: 1
oa_version: Published Version
publication: AIP Advances
publication_identifier:
  eissn:
  - 2158-3226
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45
  by means of partial V-substitution for Ag
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 13
year: '2023'
...