层状钙钛矿型铌掺杂SrO(SrTiO3)n (n = 1,2) Ruddlesden-Popper相的热电性能

Kyu Hyoung Lee, Hiromichi Ohta, K. Koumoto
{"title":"层状钙钛矿型铌掺杂SrO(SrTiO3)n (n = 1,2) Ruddlesden-Popper相的热电性能","authors":"Kyu Hyoung Lee, Hiromichi Ohta, K. Koumoto","doi":"10.1109/ICT.2006.331285","DOIUrl":null,"url":null,"abstract":"Thermoelectric (TE) properties of natural superlattice Ruddlesden-Popper (RP) phases were measured to elucidate their potential as TE materials, and the origin of the TE properties was discussed from the viewpoint of the shape of the TiO6 octahedron. Compared with the cubic perovskite-type phase Nb-doped SrTiO3, efficient reduction of the lattice thermal conductivity was observed by more than 50 % at room temperature and 30 % at 1000 K. There was a decrease in electrical conductivity owing to the randomly distributed insulating SrO layers in polycrystalline RP phases, and it was found that large TE power can be obtained in conjunction with high symmetry TiO6 octahedra","PeriodicalId":346555,"journal":{"name":"2006 25th International Conference on Thermoelectrics","volume":"125 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2006-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Thermoelectric properties of layered perovskite-type Nb-doped SrO(SrTiO3)n (n = 1,2) Ruddlesden-Popper phases\",\"authors\":\"Kyu Hyoung Lee, Hiromichi Ohta, K. Koumoto\",\"doi\":\"10.1109/ICT.2006.331285\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Thermoelectric (TE) properties of natural superlattice Ruddlesden-Popper (RP) phases were measured to elucidate their potential as TE materials, and the origin of the TE properties was discussed from the viewpoint of the shape of the TiO6 octahedron. Compared with the cubic perovskite-type phase Nb-doped SrTiO3, efficient reduction of the lattice thermal conductivity was observed by more than 50 % at room temperature and 30 % at 1000 K. There was a decrease in electrical conductivity owing to the randomly distributed insulating SrO layers in polycrystalline RP phases, and it was found that large TE power can be obtained in conjunction with high symmetry TiO6 octahedra\",\"PeriodicalId\":346555,\"journal\":{\"name\":\"2006 25th International Conference on Thermoelectrics\",\"volume\":\"125 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2006-08-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2006 25th International Conference on Thermoelectrics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICT.2006.331285\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2006 25th International Conference on Thermoelectrics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICT.2006.331285","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 3

摘要

对天然超晶格Ruddlesden-Popper (RP)相的热电性能进行了测定,以阐明其作为热电材料的潜力,并从TiO6八面体形状的角度讨论了热电性能的来源。与立方钙钛矿型铌掺杂SrTiO3相相比,在室温下晶格导热系数降低了50%以上,在1000 K时降低了30%。在多晶RP相中,随机分布的绝缘SrO层使其电导率降低,并且发现高对称性的TiO6八面体可以获得较大的TE功率
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermoelectric properties of layered perovskite-type Nb-doped SrO(SrTiO3)n (n = 1,2) Ruddlesden-Popper phases
Thermoelectric (TE) properties of natural superlattice Ruddlesden-Popper (RP) phases were measured to elucidate their potential as TE materials, and the origin of the TE properties was discussed from the viewpoint of the shape of the TiO6 octahedron. Compared with the cubic perovskite-type phase Nb-doped SrTiO3, efficient reduction of the lattice thermal conductivity was observed by more than 50 % at room temperature and 30 % at 1000 K. There was a decrease in electrical conductivity owing to the randomly distributed insulating SrO layers in polycrystalline RP phases, and it was found that large TE power can be obtained in conjunction with high symmetry TiO6 octahedra
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信