Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/26338 |
Resumo: | This work aims to explore zirconium as a possible dopant to promote thermoelectric performance in bulk ZnO-based materials, both within the single-doping concept and on simultaneous co-doping with aluminum. At 1100–1223 K mixed-doped samples demonstrated around ∼2.3 times increase in ZT as compared to single-doped materials, reaching ∼0.12. The simultaneous presence of aluminum and zirconium imposes a synergistic effect on electrical properties provided by their mutual effects on the solubility in ZnO crystal lattice, while also allowing a moderate decrease of the thermal conductivity due to phonon scattering effects. At 1173 K the power factor of mixed-doped Zn0.994Al0.003Zr0.003O was 2.2–2.5 times higher than for single-doped materials. Stability tests of the prepared materials under prospective operation conditions indicated that the gradual increase in both resistivity and Seebeck coefficient in mixed-doped compositions with time may partially compensate each other to maintain a relatively high power factor |
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Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxideElectrical propertiesThermal conductivityThermoelectric performanceZinc oxideZirconium dopingThis work aims to explore zirconium as a possible dopant to promote thermoelectric performance in bulk ZnO-based materials, both within the single-doping concept and on simultaneous co-doping with aluminum. At 1100–1223 K mixed-doped samples demonstrated around ∼2.3 times increase in ZT as compared to single-doped materials, reaching ∼0.12. The simultaneous presence of aluminum and zirconium imposes a synergistic effect on electrical properties provided by their mutual effects on the solubility in ZnO crystal lattice, while also allowing a moderate decrease of the thermal conductivity due to phonon scattering effects. At 1173 K the power factor of mixed-doped Zn0.994Al0.003Zr0.003O was 2.2–2.5 times higher than for single-doped materials. Stability tests of the prepared materials under prospective operation conditions indicated that the gradual increase in both resistivity and Seebeck coefficient in mixed-doped compositions with time may partially compensate each other to maintain a relatively high power factorElsevier2020-04-01T00:00:00Z2019-04-01T00:00:00Z2019-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/26338eng0955-221910.1016/j.jeurceramsoc.2018.11.029Zakharchuk, Kiryl V.Tobaldi, David M.Xiao, XingxingXie, WenjieMikhalev, Sergey M.Martins, João F.Frade, Jorge R.Weidenkaff, AnkeKovalevsky, Andrei V.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:51:01Zoai:ria.ua.pt:10773/26338Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:59:21.681850Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide |
title |
Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide |
spellingShingle |
Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide Zakharchuk, Kiryl V. Electrical properties Thermal conductivity Thermoelectric performance Zinc oxide Zirconium doping |
title_short |
Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide |
title_full |
Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide |
title_fullStr |
Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide |
title_full_unstemmed |
Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide |
title_sort |
Synergistic effects of zirconium- and aluminum co-doping on the thermoelectric performance of zinc oxide |
author |
Zakharchuk, Kiryl V. |
author_facet |
Zakharchuk, Kiryl V. Tobaldi, David M. Xiao, Xingxing Xie, Wenjie Mikhalev, Sergey M. Martins, João F. Frade, Jorge R. Weidenkaff, Anke Kovalevsky, Andrei V. |
author_role |
author |
author2 |
Tobaldi, David M. Xiao, Xingxing Xie, Wenjie Mikhalev, Sergey M. Martins, João F. Frade, Jorge R. Weidenkaff, Anke Kovalevsky, Andrei V. |
author2_role |
author author author author author author author author |
dc.contributor.author.fl_str_mv |
Zakharchuk, Kiryl V. Tobaldi, David M. Xiao, Xingxing Xie, Wenjie Mikhalev, Sergey M. Martins, João F. Frade, Jorge R. Weidenkaff, Anke Kovalevsky, Andrei V. |
dc.subject.por.fl_str_mv |
Electrical properties Thermal conductivity Thermoelectric performance Zinc oxide Zirconium doping |
topic |
Electrical properties Thermal conductivity Thermoelectric performance Zinc oxide Zirconium doping |
description |
This work aims to explore zirconium as a possible dopant to promote thermoelectric performance in bulk ZnO-based materials, both within the single-doping concept and on simultaneous co-doping with aluminum. At 1100–1223 K mixed-doped samples demonstrated around ∼2.3 times increase in ZT as compared to single-doped materials, reaching ∼0.12. The simultaneous presence of aluminum and zirconium imposes a synergistic effect on electrical properties provided by their mutual effects on the solubility in ZnO crystal lattice, while also allowing a moderate decrease of the thermal conductivity due to phonon scattering effects. At 1173 K the power factor of mixed-doped Zn0.994Al0.003Zr0.003O was 2.2–2.5 times higher than for single-doped materials. Stability tests of the prepared materials under prospective operation conditions indicated that the gradual increase in both resistivity and Seebeck coefficient in mixed-doped compositions with time may partially compensate each other to maintain a relatively high power factor |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-04-01T00:00:00Z 2019-04-01 2020-04-01T00:00:00Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/26338 |
url |
http://hdl.handle.net/10773/26338 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0955-2219 10.1016/j.jeurceramsoc.2018.11.029 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137648316514304 |