Low-temperature ammonia annealed TiO2 nanotube arrays: Synergy of morphology improvement and nitrogen doping for enhanced field emission
文献类型：期刊论文
| 作者 | Wang CW(王成伟)1; Zhu, Wei-Dong1; Chen, Jian-Biao1; Hou, Xian1; Zhang, Xu-Qiang1; Li, Yan1; Wang, Jian1; Zhou F(周峰)2
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| 刊名 | Thin Solid Films
 |
| 出版日期 | 2014 |
| 卷号 | 556页码:440-446 |
| 关键词 | Field emission TiO2 nanotube arrays Ammonia annealing Nitrogen doping Hierarchical structure |
| ISSN号 | 0040-6090 |
| 通讯作者 | 王成伟 |
| 英文摘要 | The field emission (FE) properties of TiO2 nanotube arrays (TNAs) fabricated by anodization are dramatically enhanced by ammonia annealing at a low temperature of 90 °C with various annealing durations of 5–15 h, which can spontaneously tailor the as-anodized amorphous TNAs to be an anatase hierarchical structure of worm-like TiO2 decorated TNAs, and simultaneously implant nitrogen into the hierarchical structure. Compared to the as-anodized TNAs, the turn-on field of ammonia annealed TNAs are significantly dropped from 23.11 to 2.94 V/μm, and related to the annealing time. Importantly, the optimized sample of ammonia annealed TNAs treated for 10 h exhibits excellent FE properties involving both a low turn-on field of 2.94 V/μm, a high FE current density of about 3.35 mA/cm2 at 7.35 V/μm, and a remarkable FE stability. The substantially enhanced FE properties can be attributed to the combination of the optimized morphology, the improved conductivity, and the presence of localized oxygen vacancy states and N 2p states created by N-doping of ammonia annealed TNAs. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the National Natural Science Foundation of China (Grant Nos. 11264034;11364036);the Natural Science Foundation of Gansu Province of China (Grant No. 1208RJZA197);the Foundation of Key Laboratory of Polymer Materials of Gansu Province (Grant No. KF-09-02);the Foundation of Northwest Normal University of China (Grant Nos. NWNU-LKQN-12-10;NWNU-LKQN-10-26;NWNU-LKQN-11-28) |
| 语种 | 英语 |
| WOS记录号 | WOS:000333085700070 |
| 源URL | [http://210.77.64.217/handle/362003/19230]  |
| 专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
| 作者单位 | 1.Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang CW,Zhu, Wei-Dong,Chen, Jian-Biao,et al. Low-temperature ammonia annealed TiO2 nanotube arrays: Synergy of morphology improvement and nitrogen doping for enhanced field emission[J]. Thin Solid Films,2014,556:440-446. |
| APA | Wang CW.,Zhu, Wei-Dong.,Chen, Jian-Biao.,Hou, Xian.,Zhang, Xu-Qiang.,...&Zhou F.(2014).Low-temperature ammonia annealed TiO2 nanotube arrays: Synergy of morphology improvement and nitrogen doping for enhanced field emission.Thin Solid Films,556,440-446. |
| MLA | Wang CW,et al."Low-temperature ammonia annealed TiO2 nanotube arrays: Synergy of morphology improvement and nitrogen doping for enhanced field emission".Thin Solid Films 556(2014):440-446. |
入库方式： OAI收割
来源：兰州化学物理研究所
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