Large Thermal Conductivity Reduction Induced by La/O Vacancies in the Thermoelectric LaCoO(3) System
文献类型：期刊论文
| 作者 | Y. Wang ; F. Li ; L. X. Xu ; Y. Sui ; X. J. Wang ; W. H. Su ; X. Y. Liu |
| 刊名 | Inorganic Chemistry
 |
| 出版日期 | 2011 |
| 卷号 | 50期号:10页码:4412-4416 |
| 关键词 | crystals temperatures srtio3 |
| ISSN号 | 0020-1669 |
| 中文摘要 | A series of compact La/O-vacant La(1-x)CoO(3-y) compounds were prepared by a cold high-pressure procedure, and their thermoelectric (TE) properties were investigated. Compared with the ion-substituted hole-type LaCoO(3) systems (e.g., La(1-x)Sr(x)CoO(3)), the thermal conduction of La(1-x)CoO(3-y) is noticeably reduced by the La/O vacancies, whereas the electric transport is less influenced, which results in an efficient ZT enhancement. We demonstrate that the large thermal conductivity reduction originates from the strong point-defect scattering, and La(1-x)CoO(3-y) can be rationalized as a partially filled solid solution: La(1-x)square(x)CoO(3-y)square(y), where square denotes a vacancy. Such intrinsic thermal conductivity suppression provides an effective pathway for the design of better TE materials. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/30756]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Y. Wang,F. Li,L. X. Xu,et al. Large Thermal Conductivity Reduction Induced by La/O Vacancies in the Thermoelectric LaCoO(3) System[J]. Inorganic Chemistry,2011,50(10):4412-4416. |
| APA | Y. Wang.,F. Li.,L. X. Xu.,Y. Sui.,X. J. Wang.,...&X. Y. Liu.(2011).Large Thermal Conductivity Reduction Induced by La/O Vacancies in the Thermoelectric LaCoO(3) System.Inorganic Chemistry,50(10),4412-4416. |
| MLA | Y. Wang,et al."Large Thermal Conductivity Reduction Induced by La/O Vacancies in the Thermoelectric LaCoO(3) System".Inorganic Chemistry 50.10(2011):4412-4416. |
入库方式： OAI收割
来源：金属研究所
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