Mo-al co-doped vo2(b) thin films: cvd synthesis, thermal sensitive properties, synchrotron radiation photoelectron and absorption spectroscopy study
文献类型：期刊论文
| 作者 | Guo, Beibei1; Wan, Dongyun1; Wang, Jiaou2; Zhu, Sixv1; Luo, Hongjie1; Gao, Yanfeng1,3 |
| 刊名 | Journal of alloys and compounds
 |
| 出版日期 | 2018-05-15 |
| 卷号 | 745页码:247-255 |
| 关键词 | Vo2(b) thin films Uncooled infrared (ir) detector Synergetic improvement Mo-al co-doping Synchrotron radiation study |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2018.02.195 |
| 通讯作者 | Wan, dongyun(echowandy@shu.edu.cn) ; Gao, yanfeng(yfgao@shu.edu.cn) |
| 英文摘要 | Endowing vanadium dioxide (vo2) thin films with excellent thermal sensitive performance is greatly desired for application in uncooled infrared (ir) detectors. here, we demonstrate a strategy of co-doping by using a simple and feasible cvd method to synthesize mo-al-doped vo2(b) thin films with high temperature-coefficient-of-resistance (tcr, -3.6%/k) and favorable square resistances (16.2 k omega). both the tcr and resistance are superior to that of undoped and al-doped vo2(b) thin film, and the tcr is larger than that of mo-doped vo2(b) thin film. the underlying microscopic mechanism for the performance improvement might be that mo-al co-doping creates less lattice deformation, strain and inhomogeneity of carrier concentration due to dimension and charge compensation than that of single-doping and the partly release of 3d electrons around v4+-v4+ pairs in co-doping films. besides, the special two-dimensional octahedral structure of monoclinic (c2/m) vo2(b) favors the strain control with doping. the films have been subjected to synchrotron radiation based x-ray photoelectron spectroscopy (srpes) and x-ray absorption near edge structure (xanes) techniques to study the local atomic and electronic structure around v ions. the results indicated that the dopants of mo and al were incorporated into the vo2 lattice and occupied some of the v lattice sites, resulting in the formation of the v1-x-ymoxalyo2 substitution solid solution. v l-edge and o k-edge xas results identically verified that mo-al co-doping might create the least lattice deformation in films. hence, the high performance of films proves that the co-doping strategy is suitable for uncooled infrared detector applications. (c) 2018 elsevier b.v. all rights reserved. |
| WOS关键词 | CHEMICAL-VAPOR-DEPOSITION ; METAL-INSULATOR-TRANSITION ; X-RAY-ABSORPTION ; PULSED-LASER DEPOSITION ; ENERGY-SAVING FOILS ; VANADIUM DIOXIDE ; PHASE-TRANSITION ; HYDROTHERMAL SYNTHESIS ; THERMOCHROMIC PROPERTIES ; TEMPERATURE-COEFFICIENT |
| WOS研究方向 | Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS类目 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000429163800030 |
| 出版者 | ELSEVIER SCIENCE SA |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2178180 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Wan, Dongyun; Gao, Yanfeng |
| 作者单位 | 1.Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200444, Peoples R China 2.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 3.Huaiyin Inst Technol, Eastern Meicheng 1, Lianyungang 223003, Jiangsu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Beibei,Wan, Dongyun,Wang, Jiaou,et al. Mo-al co-doped vo2(b) thin films: cvd synthesis, thermal sensitive properties, synchrotron radiation photoelectron and absorption spectroscopy study[J]. Journal of alloys and compounds,2018,745:247-255. |
| APA | Guo, Beibei,Wan, Dongyun,Wang, Jiaou,Zhu, Sixv,Luo, Hongjie,&Gao, Yanfeng.(2018).Mo-al co-doped vo2(b) thin films: cvd synthesis, thermal sensitive properties, synchrotron radiation photoelectron and absorption spectroscopy study.Journal of alloys and compounds,745,247-255. |
| MLA | Guo, Beibei,et al."Mo-al co-doped vo2(b) thin films: cvd synthesis, thermal sensitive properties, synchrotron radiation photoelectron and absorption spectroscopy study".Journal of alloys and compounds 745(2018):247-255. |
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