---
_id: '10566'
abstract:
- lang: eng
  text: A versatile, scalable, room temperature and surfactant-free route for the
    synthesis of metal chalcogenide nanoparticles in aqueous solution is detailed
    here for the production of PbS and Cu-doped PbS nanoparticles. Subsequently, nanoparticles
    are annealed in a reducing atmosphere to remove surface oxide, and consolidated
    into dense polycrystalline materials by means of spark plasma sintering. By characterizing
    the transport properties of the sintered material, we observe the annealing step
    and the incorporation of Cu to play a key role in promoting the thermoelectric
    performance of PbS. The presence of Cu allows improving the electrical conductivity
    by increasing the charge carrier concentration and simultaneously maintaining
    a large charge carrier mobility, which overall translates into record power factors
    at ambient temperature, 2.3 mWm-1K−2. Simultaneously, the lattice thermal conductivity
    decreases with the introduction of Cu, leading to a record high ZT = 0.37 at room
    temperature and ZT = 1.22 at 773 K. Besides, a record average ZTave = 0.76 is
    demonstrated in the temperature range 320–773 K for n-type Pb0.955Cu0.045S.
acknowledgement: This work was supported by the European Regional Development Funds.
  MYL, YZ, DWY and KX thank the China Scholarship Council for scholarship support.
  YL acknowledges funding from the European Union's Horizon 2020 research and innovation
  program under the Marie Sklodowska-Curie grant agreement No. 754411 and the funding
  for scientific research startup of Hefei University of Technology (No. 13020-03712021049).
  MI acknowledges funding from IST Austria and the Werner Siemens Foundation. CC acknowledges
  funding from the FWF “Lise Meitner Fellowship” grant agreement M 2889-N. TZ has
  received funding from the CSC-UAB PhD scholarship program. ICN2 acknowledges funding
  from Generalitat de Catalunya 2017 SGR 327. ICN2 thanks support from the project
  NANOGEN (PID2020-116093RB-C43), funded by MCIN/ AEI/10.13039/501100011033/. ICN2
  is supported by the Severo Ochoa program from Spanish MINECO (Grant No. SEV-2017-0706)
  and is funded by the CERCA Programme / Generalitat de Catalunya. Part of the present
  work has been performed in the framework of Universitat Autònoma de Barcelona Materials
  Science PhD program.
article_number: '133837'
article_processing_charge: No
article_type: original
author:
- first_name: Mengyao
  full_name: Li, Mengyao
  last_name: Li
- first_name: Yu
  full_name: Liu, Yu
  id: 2A70014E-F248-11E8-B48F-1D18A9856A87
  last_name: Liu
  orcid: 0000-0001-7313-6740
- first_name: Yu
  full_name: Zhang, Yu
  last_name: Zhang
- first_name: Cheng
  full_name: Chang, Cheng
  id: 9E331C2E-9F27-11E9-AE48-5033E6697425
  last_name: Chang
  orcid: 0000-0002-9515-4277
- first_name: Ting
  full_name: Zhang, Ting
  last_name: Zhang
- first_name: Dawei
  full_name: Yang, Dawei
  last_name: Yang
- first_name: Ke
  full_name: Xiao, Ke
  last_name: Xiao
- first_name: Jordi
  full_name: Arbiol, Jordi
  last_name: Arbiol
- first_name: Maria
  full_name: Ibáñez, Maria
  id: 43C61214-F248-11E8-B48F-1D18A9856A87
  last_name: Ibáñez
  orcid: 0000-0001-5013-2843
- first_name: Andreu
  full_name: Cabot, Andreu
  last_name: Cabot
citation:
  ama: Li M, Liu Y, Zhang Y, et al. Room temperature aqueous-based synthesis of copper-doped
    lead sulfide nanoparticles for thermoelectric application. <i>Chemical Engineering
    Journal</i>. 2022;433. doi:<a href="https://doi.org/10.1016/j.cej.2021.133837">10.1016/j.cej.2021.133837</a>
  apa: Li, M., Liu, Y., Zhang, Y., Chang, C., Zhang, T., Yang, D., … Cabot, A. (2022).
    Room temperature aqueous-based synthesis of copper-doped lead sulfide nanoparticles
    for thermoelectric application. <i>Chemical Engineering Journal</i>. Elsevier.
    <a href="https://doi.org/10.1016/j.cej.2021.133837">https://doi.org/10.1016/j.cej.2021.133837</a>
  chicago: Li, Mengyao, Yu Liu, Yu Zhang, Cheng Chang, Ting Zhang, Dawei Yang, Ke
    Xiao, Jordi Arbiol, Maria Ibáñez, and Andreu Cabot. “Room Temperature Aqueous-Based
    Synthesis of Copper-Doped Lead Sulfide Nanoparticles for Thermoelectric Application.”
    <i>Chemical Engineering Journal</i>. Elsevier, 2022. <a href="https://doi.org/10.1016/j.cej.2021.133837">https://doi.org/10.1016/j.cej.2021.133837</a>.
  ieee: M. Li <i>et al.</i>, “Room temperature aqueous-based synthesis of copper-doped
    lead sulfide nanoparticles for thermoelectric application,” <i>Chemical Engineering
    Journal</i>, vol. 433. Elsevier, 2022.
  ista: Li M, Liu Y, Zhang Y, Chang C, Zhang T, Yang D, Xiao K, Arbiol J, Ibáñez M,
    Cabot A. 2022. Room temperature aqueous-based synthesis of copper-doped lead sulfide
    nanoparticles for thermoelectric application. Chemical Engineering Journal. 433,
    133837.
  mla: Li, Mengyao, et al. “Room Temperature Aqueous-Based Synthesis of Copper-Doped
    Lead Sulfide Nanoparticles for Thermoelectric Application.” <i>Chemical Engineering
    Journal</i>, vol. 433, 133837, Elsevier, 2022, doi:<a href="https://doi.org/10.1016/j.cej.2021.133837">10.1016/j.cej.2021.133837</a>.
  short: M. Li, Y. Liu, Y. Zhang, C. Chang, T. Zhang, D. Yang, K. Xiao, J. Arbiol,
    M. Ibáñez, A. Cabot, Chemical Engineering Journal 433 (2022).
date_created: 2021-12-19T23:01:33Z
date_published: 2022-04-01T00:00:00Z
date_updated: 2023-10-03T10:14:34Z
day: '01'
department:
- _id: MaIb
doi: 10.1016/j.cej.2021.133837
ec_funded: 1
external_id:
  isi:
  - '000773425200006'
intvolume: '       433'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://ddd.uab.cat/pub/artpub/2022/270830/10.1016j.cej.2021.133837.pdf
month: '04'
oa: 1
oa_version: Submitted Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
- _id: 9B8804FC-BA93-11EA-9121-9846C619BF3A
  grant_number: M02889
  name: Bottom-up Engineering for Thermoelectric Applications
- _id: 9B8F7476-BA93-11EA-9121-9846C619BF3A
  name: 'HighTE: The Werner Siemens Laboratory for the High Throughput Discovery of
    Semiconductors for Waste Heat Recovery'
publication: Chemical Engineering Journal
publication_identifier:
  issn:
  - 1385-8947
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Room temperature aqueous-based synthesis of copper-doped lead sulfide nanoparticles
  for thermoelectric application
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 433
year: '2022'
...
---
_id: '9304'
abstract:
- lang: eng
  text: The high processing cost, poor mechanical properties and moderate performance
    of Bi2Te3–based alloys used in thermoelectric devices limit the cost-effectiveness
    of this energy conversion technology. Towards solving these current challenges,
    in the present work, we detail a low temperature solution-based approach to produce
    Bi2Te3-Cu2-xTe nanocomposites with improved thermoelectric performance. Our approach
    consists in combining proper ratios of colloidal nanoparticles and to consolidate
    the resulting mixture into nanocomposites using a hot press. The transport properties
    of the nanocomposites are characterized and compared with those of pure Bi2Te3
    nanomaterials obtained following the same procedure. In contrast with most previous
    works, the presence of Cu2-xTe nanodomains does not result in a significant reduction
    of the lattice thermal conductivity of the reference Bi2Te3 nanomaterial, which
    is already very low. However, the introduction of Cu2-xTe yields a nearly threefold
    increase of the power factor associated to a simultaneous increase of the Seebeck
    coefficient and electrical conductivity at temperatures above 400 K. Taking into
    account the band alignment of the two materials, we rationalize this increase
    by considering that Cu2-xTe nanostructures, with a relatively low electron affinity,
    are able to inject electrons into Bi2Te3, enhancing in this way its electrical
    conductivity. The simultaneous increase of the Seebeck coefficient is related
    to the energy filtering of charge carriers at energy barriers within Bi2Te3 domains
    associated with the accumulation of electrons in regions nearby a Cu2-xTe/Bi2Te3
    heterojunction. Overall, with the incorporation of a proper amount of Cu2-xTe
    nanoparticles, we demonstrate a 250% improvement of the thermoelectric figure
    of merit of Bi2Te3.
acknowledgement: "This work was supported by the European Regional Development Funds
  and by the Generalitat de Catalunya through the project 2017SGR1246. Y.Z, C.X, M.L,
  K.X and X.H thank the China Scholarship Council for the scholarship support. MI
  acknowledges financial support from IST Austria. YL acknowledges funding from the
  European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie
  grant agreement No. 754411. ICN2\r\nacknowledges funding from Generalitat de Catalunya
  2017 SGR 327 and the Spanish MINECO project ENE2017-85087-C3. ICN2 is supported
  by the Severo Ochoa program from the Spanish MINECO (grant no. SEV-2017-0706) and
  is funded by the CERCA Program/Generalitat de Catalunya. Part of the present work
  has been performed in the framework of Universitat Autònoma de Barcelona Materials
  Science PhD program."
article_number: '129374'
article_processing_charge: No
article_type: original
author:
- first_name: Yu
  full_name: Zhang, Yu
  last_name: Zhang
- first_name: Congcong
  full_name: Xing, Congcong
  last_name: Xing
- first_name: Yu
  full_name: Liu, Yu
  id: 2A70014E-F248-11E8-B48F-1D18A9856A87
  last_name: Liu
  orcid: 0000-0001-7313-6740
- first_name: Mengyao
  full_name: Li, Mengyao
  last_name: Li
- first_name: Ke
  full_name: Xiao, Ke
  last_name: Xiao
- first_name: Pablo
  full_name: Guardia, Pablo
  last_name: Guardia
- first_name: Seungho
  full_name: Lee, Seungho
  id: BB243B88-D767-11E9-B658-BC13E6697425
  last_name: Lee
  orcid: 0000-0002-6962-8598
- first_name: Xu
  full_name: Han, Xu
  last_name: Han
- first_name: Ahmad
  full_name: Moghaddam, Ahmad
  last_name: Moghaddam
- first_name: Joan J
  full_name: Roa, Joan J
  last_name: Roa
- first_name: Jordi
  full_name: Arbiol, Jordi
  last_name: Arbiol
- first_name: Maria
  full_name: Ibáñez, Maria
  id: 43C61214-F248-11E8-B48F-1D18A9856A87
  last_name: Ibáñez
  orcid: 0000-0001-5013-2843
- first_name: Kai
  full_name: Pan, Kai
  last_name: Pan
- first_name: Mirko
  full_name: Prato, Mirko
  last_name: Prato
- first_name: Ying
  full_name: Xie, Ying
  last_name: Xie
- first_name: Andreu
  full_name: Cabot, Andreu
  last_name: Cabot
citation:
  ama: Zhang Y, Xing C, Liu Y, et al. Influence of copper telluride nanodomains on
    the transport properties of n-type bismuth telluride. <i>Chemical Engineering
    Journal</i>. 2021;418(8). doi:<a href="https://doi.org/10.1016/j.cej.2021.129374">10.1016/j.cej.2021.129374</a>
  apa: Zhang, Y., Xing, C., Liu, Y., Li, M., Xiao, K., Guardia, P., … Cabot, A. (2021).
    Influence of copper telluride nanodomains on the transport properties of n-type
    bismuth telluride. <i>Chemical Engineering Journal</i>. Elsevier. <a href="https://doi.org/10.1016/j.cej.2021.129374">https://doi.org/10.1016/j.cej.2021.129374</a>
  chicago: Zhang, Yu, Congcong Xing, Yu Liu, Mengyao Li, Ke Xiao, Pablo Guardia, Seungho
    Lee, et al. “Influence of Copper Telluride Nanodomains on the Transport Properties
    of N-Type Bismuth Telluride.” <i>Chemical Engineering Journal</i>. Elsevier, 2021.
    <a href="https://doi.org/10.1016/j.cej.2021.129374">https://doi.org/10.1016/j.cej.2021.129374</a>.
  ieee: Y. Zhang <i>et al.</i>, “Influence of copper telluride nanodomains on the
    transport properties of n-type bismuth telluride,” <i>Chemical Engineering Journal</i>,
    vol. 418, no. 8. Elsevier, 2021.
  ista: Zhang Y, Xing C, Liu Y, Li M, Xiao K, Guardia P, Lee S, Han X, Moghaddam A,
    Roa JJ, Arbiol J, Ibáñez M, Pan K, Prato M, Xie Y, Cabot A. 2021. Influence of
    copper telluride nanodomains on the transport properties of n-type bismuth telluride.
    Chemical Engineering Journal. 418(8), 129374.
  mla: Zhang, Yu, et al. “Influence of Copper Telluride Nanodomains on the Transport
    Properties of N-Type Bismuth Telluride.” <i>Chemical Engineering Journal</i>,
    vol. 418, no. 8, 129374, Elsevier, 2021, doi:<a href="https://doi.org/10.1016/j.cej.2021.129374">10.1016/j.cej.2021.129374</a>.
  short: Y. Zhang, C. Xing, Y. Liu, M. Li, K. Xiao, P. Guardia, S. Lee, X. Han, A.
    Moghaddam, J.J. Roa, J. Arbiol, M. Ibáñez, K. Pan, M. Prato, Y. Xie, A. Cabot,
    Chemical Engineering Journal 418 (2021).
date_created: 2021-04-04T22:01:20Z
date_published: 2021-08-15T00:00:00Z
date_updated: 2023-09-27T07:36:29Z
day: '15'
department:
- _id: MaIb
doi: 10.1016/j.cej.2021.129374
ec_funded: 1
external_id:
  isi:
  - '000655672000005'
intvolume: '       418'
isi: 1
issue: '8'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://ddd.uab.cat/record/271949
month: '08'
oa: 1
oa_version: Submitted Version
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '754411'
  name: ISTplus - Postdoctoral Fellowships
publication: Chemical Engineering Journal
publication_identifier:
  issn:
  - 1385-8947
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Influence of copper telluride nanodomains on the transport properties of n-type
  bismuth telluride
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 418
year: '2021'
...