Two dimensionalization induced enhancing dielectric anisotropy of titania
文献类型：期刊论文
| 作者 | Wang, Liang1,2 ; Soh, Ai Kah3; Liu, Shuangyi1,2
|
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2020-11-25 |
| 卷号 | 842页码:7 |
| 关键词 | DFT Two-dimensional oxide dielectrics Dielectric property Energy storage capability Future electronic devices |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2020.155699 |
| 通讯作者 | Liu, Shuangyi(liushuangyi@cigit.ac.cn) |
| 英文摘要 | Two dimensionalization of dielectric oxides will lead to significant variations of the dielectric properties in comparing with their bulk counterparts. To clarify the longstanding controversy how indeed dielectric properties would change is a critical prerequisite and highly demanded by the correlated scientific community and electronic industry. Here, taking titania as an example, a theoretical study by ab-initio calculations is performed for predicting the dielectric property evolution in combining with the structure transformations. Highly enhanced dielectric constant anisotropy is found that out of plane reduces significantly differed from those enlargement predictions, but electronic screening in plane enhances. While for the breakdown strength, which is always ignored in theoretical investigation, it also demonstrates that permittivity and breakdown strength can be enhanced at the expense of each other during two dimensionalization. The anisotropy between permittivity and breakdown strength can cause a much higher dielectric energy density. Such findings are very helpful for designing future atomic scale electronic and optical devices such as high voltage capacitor, excellent gate dielectrics for high frequency field effect transistor (FET) with two-dimensional oxide dielectrics. (C) 2020 Elsevier B.V. All rights reserved. |
| 资助项目 | National Natural Science Foundation of China[21875245] |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000551030400009 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://119.78.100.138/handle/2HOD01W0/11290]  |
| 专题 | 中国科学院重庆绿色智能技术研究院 |
| 通讯作者 | Liu, Shuangyi |
| 作者单位 | 1.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China 2.Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, 266 Fangzheng Ave, Chongqing, Peoples R China 3.Monash Univ Malaysia, Sch Engn, Bandar Sunway, Salangor, Malaysia |
| 推荐引用方式 GB/T 7714 | Wang, Liang,Soh, Ai Kah,Liu, Shuangyi. Two dimensionalization induced enhancing dielectric anisotropy of titania[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,842:7. |
| APA | Wang, Liang,Soh, Ai Kah,&Liu, Shuangyi.(2020).Two dimensionalization induced enhancing dielectric anisotropy of titania.JOURNAL OF ALLOYS AND COMPOUNDS,842,7. |
| MLA | Wang, Liang,et al."Two dimensionalization induced enhancing dielectric anisotropy of titania".JOURNAL OF ALLOYS AND COMPOUNDS 842(2020):7. |
入库方式： OAI收割
来源：重庆绿色智能技术研究院
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