Study of the phase transition properties and electronic band structures of VO2 thin films grown on different substrates
文献类型：期刊论文
| 作者 | Guo, Yunfeng; Zhang, Yuzhi; Zhang, Liangmiao; Lv, Xinrui; Wu, Lingnan; Cao, Yunzhen; Song, Lixin |
| 刊名 | MATERIALS RESEARCH EXPRESS
 |
| 出版日期 | 2019 |
| 卷号 | 6期号:2 |
| 关键词 | VO2 metal-to-insulator transition spectroscopic ellipsometry electronic structure |
| ISSN号 | 2053-1591 |
| DOI | 10.1088/2053-1591/aaed74 |
| 文献子类 | Article |
| 英文摘要 | Optical properties and electronic structures of VO2 films obtained by magnetron sputtering method on quartz and sapphire substrates were analyzed by transmission spectrum and spectroscopic ellipsometry (SE). The metal-to-insulator transition (MIT) characteristics of the two thin films were compared and discussed correlating with their structural details. By fitting spectroscopic ellipsometric data,. the dielectric functions, electronic transitions, and optical bandgap of VO2 films can be tuned by substrate effects. On quartz substrate, the VO2 film exhibits a lower transition temperature and broader thermal hysteresis (Delta H). It is found that the lowest order transition (E-1) on quartz substrate does not reduce to zero in the metallic phase as expected. There are two reasons: one is the slight decrease in the filled a(1g) bands compared to the e(g)(pi) bands due to a greater compressive stress in the quartz films; the other is associated with the donor level (E-D) and acceptor level (E-A). |
| WOS关键词 | METAL-INSULATOR-TRANSITION ; VANADIUM DIOXIDE ; OPTICAL-PROPERTIES ; TEMPERATURE |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | IOP PUBLISHING LTD |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27560]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Guo, Yunfeng,Zhang, Yuzhi,Zhang, Liangmiao,et al. Study of the phase transition properties and electronic band structures of VO2 thin films grown on different substrates[J]. MATERIALS RESEARCH EXPRESS,2019,6(2). |
| APA | Guo, Yunfeng.,Zhang, Yuzhi.,Zhang, Liangmiao.,Lv, Xinrui.,Wu, Lingnan.,...&Song, Lixin.(2019).Study of the phase transition properties and electronic band structures of VO2 thin films grown on different substrates.MATERIALS RESEARCH EXPRESS,6(2). |
| MLA | Guo, Yunfeng,et al."Study of the phase transition properties and electronic band structures of VO2 thin films grown on different substrates".MATERIALS RESEARCH EXPRESS 6.2(2019). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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