Unlocking the potential of Cu3SbSe3: ultralow thermal conductivity and enhanced thermoelectric performance

Cu3SbSe3, with its ultralow thermal conductivity and Earth-abundant elements, has emerged as a promising thermoelectric material. However, synthesizing its pure phase and achieving effective doping have proven to be challenging. In this study, we present our findings on the investigation of thermoel...

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Main Authors: Saglik, Kivanc, Dong, Jinfeng, Zhang, Danwei, Hsu, Thiri Zaw, Duran, Solco Samantha Faye, Cao, Jing, Zhu, Qiang, Ji, Rong, Wong, Seng Kai, Teo, Siew Lang, Wei, Feng Xia, Yan, Qingyu, Suwardi, Ady
Other Authors: School of Chemistry, Chemical Engineering and Biotechnology
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/175856
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-1758562024-05-08T04:44:18Z Unlocking the potential of Cu3SbSe3: ultralow thermal conductivity and enhanced thermoelectric performance Saglik, Kivanc Dong, Jinfeng Zhang, Danwei Hsu, Thiri Zaw Duran, Solco Samantha Faye Cao, Jing Zhu, Qiang Ji, Rong Wong, Seng Kai Teo, Siew Lang Wei, Feng Xia Yan, Qingyu Suwardi, Ady School of Chemistry, Chemical Engineering and Biotechnology School of Materials Science and Engineering Institute of Materials Research and Engineering, A*STAR Institute of Sustainability for Chemicals, A*STAR Chemistry Thermoelectricity Lattice thermal conductivity Cu3SbSe3, with its ultralow thermal conductivity and Earth-abundant elements, has emerged as a promising thermoelectric material. However, synthesizing its pure phase and achieving effective doping have proven to be challenging. In this study, we present our findings on the investigation of thermoelectric properties of stoichiometric and off-stoichiometric Cu3SbSe3 compositions along with various doping strategies. Our results demonstrate that samples with non-stoichiometric compositions and Bi doping further reduces the lattice thermal conductivity of 0.16 W/mK. The consistently moderate Seebeck coefficient leads to a zT value of 0.25 at 650 K across all cation-deficient samples. Furthermore, we observed that 5% Bi doping further enhances the zT value to 0.35, representing a 52% improvement over pristine Cu3SbSe3. We believe that the compositional insensitivity of zT and the enhanced performance achieved through Bi doping offer new opportunities for exploring materials with ultra-low thermal conductivity in the field of thermoelectrics. Agency for Science, Technology and Research (A*STAR) Ministry of Education (MOE) The authors are grateful for the financial support from MOE ACRF Tier 1 RG128/21, RT6/22, and Singapore A*STAR project A19D9a0096. K. Saglik acknowledges the support from A*STAR’s SINGA Scholarship. A. Suwardi acknowledges funding from A*STAR Career Development Fund (CDF) no. C210112022 and e-Asia Joint Research Program award no. R22I1IR0053. J.C. acknowledges funding from Career Development Fund no. C222812009. 2024-05-08T04:44:17Z 2024-05-08T04:44:17Z 2024 Journal Article Saglik, K., Dong, J., Zhang, D., Hsu, T. Z., Duran, S. S. F., Cao, J., Zhu, Q., Ji, R., Wong, S. K., Teo, S. L., Wei, F. X., Yan, Q. & Suwardi, A. (2024). Unlocking the potential of Cu3SbSe3: ultralow thermal conductivity and enhanced thermoelectric performance. Journal of Solid State Chemistry, 333, 124642-. https://dx.doi.org/10.1016/j.jssc.2024.124642 0022-4596 https://hdl.handle.net/10356/175856 10.1016/j.jssc.2024.124642 2-s2.0-85186767544 333 124642 en RG128/21 RT6/22 A19D9a0096 Journal of Solid State Chemistry © 2024 Elsevier Inc. All rights reserved.
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Chemistry
Thermoelectricity
Lattice thermal conductivity
spellingShingle Chemistry
Thermoelectricity
Lattice thermal conductivity
Saglik, Kivanc
Dong, Jinfeng
Zhang, Danwei
Hsu, Thiri Zaw
Duran, Solco Samantha Faye
Cao, Jing
Zhu, Qiang
Ji, Rong
Wong, Seng Kai
Teo, Siew Lang
Wei, Feng Xia
Yan, Qingyu
Suwardi, Ady
Unlocking the potential of Cu3SbSe3: ultralow thermal conductivity and enhanced thermoelectric performance
description Cu3SbSe3, with its ultralow thermal conductivity and Earth-abundant elements, has emerged as a promising thermoelectric material. However, synthesizing its pure phase and achieving effective doping have proven to be challenging. In this study, we present our findings on the investigation of thermoelectric properties of stoichiometric and off-stoichiometric Cu3SbSe3 compositions along with various doping strategies. Our results demonstrate that samples with non-stoichiometric compositions and Bi doping further reduces the lattice thermal conductivity of 0.16 W/mK. The consistently moderate Seebeck coefficient leads to a zT value of 0.25 at 650 K across all cation-deficient samples. Furthermore, we observed that 5% Bi doping further enhances the zT value to 0.35, representing a 52% improvement over pristine Cu3SbSe3. We believe that the compositional insensitivity of zT and the enhanced performance achieved through Bi doping offer new opportunities for exploring materials with ultra-low thermal conductivity in the field of thermoelectrics.
author2 School of Chemistry, Chemical Engineering and Biotechnology
author_facet School of Chemistry, Chemical Engineering and Biotechnology
Saglik, Kivanc
Dong, Jinfeng
Zhang, Danwei
Hsu, Thiri Zaw
Duran, Solco Samantha Faye
Cao, Jing
Zhu, Qiang
Ji, Rong
Wong, Seng Kai
Teo, Siew Lang
Wei, Feng Xia
Yan, Qingyu
Suwardi, Ady
format Article
author Saglik, Kivanc
Dong, Jinfeng
Zhang, Danwei
Hsu, Thiri Zaw
Duran, Solco Samantha Faye
Cao, Jing
Zhu, Qiang
Ji, Rong
Wong, Seng Kai
Teo, Siew Lang
Wei, Feng Xia
Yan, Qingyu
Suwardi, Ady
author_sort Saglik, Kivanc
title Unlocking the potential of Cu3SbSe3: ultralow thermal conductivity and enhanced thermoelectric performance
title_short Unlocking the potential of Cu3SbSe3: ultralow thermal conductivity and enhanced thermoelectric performance
title_full Unlocking the potential of Cu3SbSe3: ultralow thermal conductivity and enhanced thermoelectric performance
title_fullStr Unlocking the potential of Cu3SbSe3: ultralow thermal conductivity and enhanced thermoelectric performance
title_full_unstemmed Unlocking the potential of Cu3SbSe3: ultralow thermal conductivity and enhanced thermoelectric performance
title_sort unlocking the potential of cu3sbse3: ultralow thermal conductivity and enhanced thermoelectric performance
publishDate 2024
url https://hdl.handle.net/10356/175856
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