---
_id: '11142'
abstract:
- lang: eng
  text: SnTe is a promising Pb-free thermoelectric (TE) material with high electrical
    conductivity. We discovered the synergistic effect of Bi2O3 on enhancing the average
    power factor (PF) and overall ZT value of the SnTe-based thermoelectric material.
    The introduction of Bi2O3 forms plenty of SnO2, Bi2O3, and Bi-rich nanoprecipitates.
    These interfaces between the SnTe matrix and the nanoprecipitates can enhance
    the average PF through the energy filtering effect. On the other hand, abundant
    and diverse nanoprecipitates can significantly diminish the lattice thermal conductivity
    (κlat) through enhanced phonon scattering. The synergistic effect of Bi2O3 resulted
    in a maximum ZT (ZTmax) value of 0.9 at SnTe-2% Bi2O3 and an average ZT (ZTave)
    value of 0.4 for SnTe-4% Bi2O3 from 300 K to 823 K. The work provides an excellent
    reference to develop non-toxic high-performance TE materials.
acknowledgement: This work was supported by National Natural Science Foundation of
  China (52002042), National Key Research and Development Program of China (2018YFA0702100
  and 2018YFB0703600), 111 Project (B17002) and Lise Meitner Project M 2889-N. This
  work was also supported by the National Postdoctoral Program for Innovative Talents
  (BX20200028). L.D.Z. appreciates the support of the high-performance computing (HPC)
  resources at Beihang University, the National Science Fund for Distinguished Young
  Scholars (51925101), and center for High Pressure Science and Technology Advanced
  Research (HPSTAR) for SEM and TEM measurements.
article_number: '100985'
article_processing_charge: No
article_type: original
author:
- first_name: Tao
  full_name: Hong, Tao
  last_name: Hong
- first_name: Changrong
  full_name: Guo, Changrong
  last_name: Guo
- first_name: Dongyang
  full_name: Wang, Dongyang
  last_name: Wang
- first_name: Bingchao
  full_name: Qin, Bingchao
  last_name: Qin
- first_name: Cheng
  full_name: Chang, Cheng
  id: 9E331C2E-9F27-11E9-AE48-5033E6697425
  last_name: Chang
  orcid: 0000-0002-9515-4277
- first_name: Xiang
  full_name: Gao, Xiang
  last_name: Gao
- first_name: Li Dong
  full_name: Zhao, Li Dong
  last_name: Zhao
citation:
  ama: Hong T, Guo C, Wang D, et al. Enhanced thermoelectric performance in SnTe due
    to the energy filtering effect introduced by Bi2O3. <i>Materials Today Energy</i>.
    2022;25. doi:<a href="https://doi.org/10.1016/j.mtener.2022.100985">10.1016/j.mtener.2022.100985</a>
  apa: Hong, T., Guo, C., Wang, D., Qin, B., Chang, C., Gao, X., &#38; Zhao, L. D.
    (2022). Enhanced thermoelectric performance in SnTe due to the energy filtering
    effect introduced by Bi2O3. <i>Materials Today Energy</i>. Elsevier. <a href="https://doi.org/10.1016/j.mtener.2022.100985">https://doi.org/10.1016/j.mtener.2022.100985</a>
  chicago: Hong, Tao, Changrong Guo, Dongyang Wang, Bingchao Qin, Cheng Chang, Xiang
    Gao, and Li Dong Zhao. “Enhanced Thermoelectric Performance in SnTe Due to the
    Energy Filtering Effect Introduced by Bi2O3.” <i>Materials Today Energy</i>. Elsevier,
    2022. <a href="https://doi.org/10.1016/j.mtener.2022.100985">https://doi.org/10.1016/j.mtener.2022.100985</a>.
  ieee: T. Hong <i>et al.</i>, “Enhanced thermoelectric performance in SnTe due to
    the energy filtering effect introduced by Bi2O3,” <i>Materials Today Energy</i>,
    vol. 25. Elsevier, 2022.
  ista: Hong T, Guo C, Wang D, Qin B, Chang C, Gao X, Zhao LD. 2022. Enhanced thermoelectric
    performance in SnTe due to the energy filtering effect introduced by Bi2O3. Materials
    Today Energy. 25, 100985.
  mla: Hong, Tao, et al. “Enhanced Thermoelectric Performance in SnTe Due to the Energy
    Filtering Effect Introduced by Bi2O3.” <i>Materials Today Energy</i>, vol. 25,
    100985, Elsevier, 2022, doi:<a href="https://doi.org/10.1016/j.mtener.2022.100985">10.1016/j.mtener.2022.100985</a>.
  short: T. Hong, C. Guo, D. Wang, B. Qin, C. Chang, X. Gao, L.D. Zhao, Materials
    Today Energy 25 (2022).
date_created: 2022-04-10T22:01:39Z
date_published: 2022-04-01T00:00:00Z
date_updated: 2023-08-03T06:28:16Z
day: '01'
department:
- _id: MaIb
doi: 10.1016/j.mtener.2022.100985
external_id:
  isi:
  - '000798679100010'
intvolume: '        25'
isi: 1
language:
- iso: eng
month: '04'
oa_version: None
project:
- _id: 9B8804FC-BA93-11EA-9121-9846C619BF3A
  grant_number: M02889
  name: Bottom-up Engineering for Thermoelectric Applications
publication: Materials Today Energy
publication_identifier:
  eissn:
  - 2468-6069
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Enhanced thermoelectric performance in SnTe due to the energy filtering effect
  introduced by Bi2O3
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 25
year: '2022'
...