Extreme In-Plane Thermal Conductivity Anisotropy in Titanium Trisulfide Caused by Heat-Carrying Optical Phonons
文献类型：期刊论文
| 作者 | Liu, HL; Yu, XX; Wu, KD; Gao, Y; Tongay, S; Javey, A; Chen, LD; Hong, JW; Wu, JQ |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2020-07-08 |
| 期号 | 7页码:5221 |
| ISSN号 | 1530-6984 |
| DOI | 10.1021/acs.nanolett.0c01476 |
| 文献子类 | Article |
| 英文摘要 | High in-plane anisotropies arise in layered materials with large structural difference along different in-plane directions. We report an extreme case in layered TiS3, which features tightly bonded atomic chains along the b-axis direction, held together by weaker, interchain bonding along the a-axis direction. Experiments show thermal conductivity along the chain twice as high as between the chain, an in-plane anisotropy higher than any other layered materials measured to date. We found that in contrast to most other materials, optical phonons in TiS3 conduct an unusually high portion of heat (up to 66% along the b-axis direction). The large dispersiveness of optical phonons along the chains, contrasted to many fewer dispersive optical phonons perpendicular to the chains, is the primary reason for the observed high anisotropy in thermal conductivity. The finding discovers materials with unusual thermal conduction mechanism, as well as provides new material platforms for potential heat-routing or heat-managing devices. |
| WOS关键词 | TIS3 ; ELECTRONICS |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27914]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Liu, HL,Yu, XX,Wu, KD,et al. Extreme In-Plane Thermal Conductivity Anisotropy in Titanium Trisulfide Caused by Heat-Carrying Optical Phonons[J]. NANO LETTERS,2020(7):5221. |
| APA | Liu, HL.,Yu, XX.,Wu, KD.,Gao, Y.,Tongay, S.,...&Wu, JQ.(2020).Extreme In-Plane Thermal Conductivity Anisotropy in Titanium Trisulfide Caused by Heat-Carrying Optical Phonons.NANO LETTERS(7),5221. |
| MLA | Liu, HL,et al."Extreme In-Plane Thermal Conductivity Anisotropy in Titanium Trisulfide Caused by Heat-Carrying Optical Phonons".NANO LETTERS .7(2020):5221. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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