Two Dimensional MOene: From Superconductors to Direct Semiconductors and Weyl Fermions
文献类型：期刊论文
| 作者 | Yan, Luo; Zhu, Jiaojiao; Wang, Bao-Tian ; He, Junjie; Song, Hai-Zhi; Chu, Weibin; Tretiak, Sergei; Zhou, Liujiang,
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| 刊名 | Nano Letters
 |
| 出版日期 | 2022 |
| 卷号 | 22期号:13页码:5592-5599 |
| ISSN号 | 15306984 |
| DOI | 10.1021/acs.nanolett.2c01914 |
| 文献子类 | Article |
| 英文摘要 | The number of semiconducting MXenes with direct band gaps is extremely low; thus, it is highly desirable to broaden the MXene family beyond carbides and nitrides to expand the palette of desired chemical and physical properties. Here, we theoretically report the existence of the single-layer (SL) dititanium oxide 2H-Ti2O MOene (MXene-like 2D transition oxides), showing an Ising superconducting feature. Moreover, SL halogenated 2H- and 1T-Ti2O monolayers display tunable semiconducting features and strong light-harvesting ability. In addition, the external strains can induce Weyl fermions via quantum phase transition in 2H-Ti2OF2and Ti2OCl2monolayers. Specifically, 2H- and 1T-Ti2OF2are direct semiconductors with band gaps of 0.82 and 1.18 eV, respectively. Furthermore, the carrier lifetimes of SL 2H- and 1T-Ti2OF2are evaluated to be 0.39 and 2.8 ns, respectively. This study extends emerging phenomena in a rich family of 2D MXene-like MOene materials, which provides a novel platform for next-generation optoelectronic and photovoltaic fields. © 2022 American Chemical Society. All rights reserved. |
| 电子版国际标准刊号 | 15306992 |
| 语种 | 英语 |
| WOS记录号 | WOS:000820335600001 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299911]  |
| 专题 | 高能物理研究所_东莞分部 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Yan, Luo,Zhu, Jiaojiao,Wang, Bao-Tian,et al. Two Dimensional MOene: From Superconductors to Direct Semiconductors and Weyl Fermions[J]. Nano Letters,2022,22(13):5592-5599. |
| APA | Yan, Luo.,Zhu, Jiaojiao.,Wang, Bao-Tian.,He, Junjie.,Song, Hai-Zhi.,...&Zhou, Liujiang,.(2022).Two Dimensional MOene: From Superconductors to Direct Semiconductors and Weyl Fermions.Nano Letters,22(13),5592-5599. |
| MLA | Yan, Luo,et al."Two Dimensional MOene: From Superconductors to Direct Semiconductors and Weyl Fermions".Nano Letters 22.13(2022):5592-5599. |
入库方式： OAI收割
来源：高能物理研究所
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