Room temperature aqueous-based synthesis of copper-doped lead sulfide nanoparticles for thermoelectric application

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(3), 133837.

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Journal Article | Epub ahead of print | English

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Author
Li, Mengyao; Liu, YuISTA ; Zhang, Yu; Chang, ChengISTA; Zhang, Ting; Yang, Dawei; Xiao, Ke; Arbiol, Jordi; Ibáñez , MariaISTA ; Cabot, Andreu
Department
Abstract
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.
Publishing Year
Date Published
2022-02-07
Journal Title
Chemical Engineering Journal
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.
Volume
433
Issue
3
Article Number
133837
ISSN
IST-REx-ID

Cite this

Li M, Liu Y, Zhang Y, et al. Room temperature aqueous-based synthesis of copper-doped lead sulfide nanoparticles for thermoelectric application. Chemical Engineering Journal. 2022;433(3). doi:10.1016/j.cej.2021.133837
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. Chemical Engineering Journal. Elsevier. https://doi.org/10.1016/j.cej.2021.133837
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.” Chemical Engineering Journal. Elsevier, 2022. https://doi.org/10.1016/j.cej.2021.133837.
M. Li et al., “Room temperature aqueous-based synthesis of copper-doped lead sulfide nanoparticles for thermoelectric application,” Chemical Engineering Journal, vol. 433, no. 3. Elsevier, 2022.
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(3), 133837.
Li, Mengyao, et al. “Room Temperature Aqueous-Based Synthesis of Copper-Doped Lead Sulfide Nanoparticles for Thermoelectric Application.” Chemical Engineering Journal, vol. 433, no. 3, 133837, Elsevier, 2022, doi:10.1016/j.cej.2021.133837.

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