An abnormal phase transition behavior in VO2 nanoparticles induced by an M1-M2-R process: two anomalous high (> 68 degrees C) transition temperatures
文献类型：期刊论文
| 作者 | Dong, Bingrong1; Shen, Nan1; Cao, Chuanxiang1; Chen, Zhang2; Luo, Hongjie1,2; Gao, Yanfeng2,3 |
| 刊名 | RSC ADVANCES
 |
| 出版日期 | 2016 |
| 卷号 | 6期号:56页码:50521-50528 |
| 英文摘要 | Vanadium dioxide (VO2) has a reversible metal-insulator transition (MIT) at 68 degrees C and can be used to develop thermally and electrically sensitive devices. In this study, an abnormal phase transition behavior of VO2 nanoparticles was discovered during the comparison of pristine nanoparticles without and with high temperature thermal treatment. The single phase transition temperature at 65.1 degrees C for the pristine VO2 nanoparticles split into two temperatures at approximately 74 degrees C (T1) and 84 degrees C (T-2) after thermal treatment at 400 degrees C for 6 h. Both temperatures are much larger than 68 degrees C. Through characterization by Raman and transmission electron microscopy (TEM), the two higher transition temperatures could be well explained by the formation of VO2 (M2). Grain boundaries were observed during the merger and fusion processes of VO2 nanoparticles at high temperatures. The grain boundaries and interfacial defects resulted in the dislocation of the lattice structure and produced stress and strain in the VO2 nanoparticles. Consequently, VO2 (M2) with a higher temperature formed in the heating process and the initial MIT (M1-R) became an M1-M2-R transition. Moreover, the thermal treatment improves the phase transition enthalpy (Delta H) of VO2, which promotes the increase in the solar modulation ability (Delta T-sol) of VO2-PET composite film from 12.8% to 15.2-17.0% without loss in the luminous transmittance. These findings are of great significance to the deep understanding of MIT and the development of VO2 smart windows. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Chemistry, Multidisciplinary |
| 研究领域[WOS] | Chemistry |
| 关键词[WOS] | METAL-INSULATOR-TRANSITION ; VANADIUM DIOXIDE ; HYDROTHERMAL SYNTHESIS ; PERFORMANCE ; NANOWIRES ; SENSOR ; GLASS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000377515200017 |
| 源URL | [http://ir.sic.ac.cn/handle/331005/22997]  |
| 专题 | 上海硅酸盐研究所_古陶瓷与工业陶瓷工程研究中心_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi, Shanghai 200050, Peoples R China 2.Shanghai Univ, Sch Mat Sci & Engn, 99 Shangda, Shanghai 200444, Peoples R China 3.Huaiyin Inst Technol, Jiangsu Prov Engn Lab Adv Mat Salt Chem Ind, Key Lab Palygorskite Sci & Appl Technol Jiangsu P, Huaian 223003, Peoples R China |
| 推荐引用方式 GB/T 7714 | Dong, Bingrong,Shen, Nan,Cao, Chuanxiang,et al. An abnormal phase transition behavior in VO2 nanoparticles induced by an M1-M2-R process: two anomalous high (> 68 degrees C) transition temperatures[J]. RSC ADVANCES,2016,6(56):50521-50528. |
| APA | Dong, Bingrong,Shen, Nan,Cao, Chuanxiang,Chen, Zhang,Luo, Hongjie,&Gao, Yanfeng.(2016).An abnormal phase transition behavior in VO2 nanoparticles induced by an M1-M2-R process: two anomalous high (> 68 degrees C) transition temperatures.RSC ADVANCES,6(56),50521-50528. |
| MLA | Dong, Bingrong,et al."An abnormal phase transition behavior in VO2 nanoparticles induced by an M1-M2-R process: two anomalous high (> 68 degrees C) transition temperatures".RSC ADVANCES 6.56(2016):50521-50528. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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