Comparative study on structure and wetting properties of diamond-like carbon films by W and Cu doping
文献类型：会议论文
| 作者 | Sun, Lili; Guo, Peng; Li, Xiaowei; Wang, Aiying |
| 出版日期 | 2017 |
| 会议日期 | MAY 22-26, 2016 |
| 关键词 | COATINGS MICROSTRUCTURE HYDROPHOBICITY PERFORMANCE SURFACES TUNGSTEN |
| 卷号 | 73 |
| DOI | 10.1016/j.diamond.2016.10.022 |
| 英文摘要 | By specifically selecting the carbide-forming metal (W) and non-carbide-forming metal (Cu) as the doped metal, we fabricated the W and Cu doped diamond-like carbon (W-DLC and Cu-DLC) films by hybrid ion beam system, respectively. And a comparative study on structure and wetting properties of W-DLC and Cu-DLC films was focused. For Cu-DLC films, the wettability transformation from hydrophilicity (76.56 degrees) to hydrophobicity (105.6 degrees) was observed. While in case of W-DLC films, the wettability of films maintained the hydrophilicity (73.6 +/- 3.93 degrees) within the presented W concentration. Based on the surface energy calculation and electronic structure analysis from first-principles calculations, we firstly gained insight into the wettability behavior of W-DLC and Cu-DLC films in terms of the bond characteristics formed between doped metal and C atoms. Results showed that the anti-bonding characteristic between Cu and C atoms reduced the polar components of surface energy and dangling bonds, contributing to the improvement of hydrophobic property, while the non-bonding characteristic for W C bond resulted in the appearance of dipoles, leading to the hydrophilic character. It was in particularly concluded that the different bond characteristic between metal and C atoms played a key role in the wettability of metal doped DLC films. The obtained results offer a facile strategy to design DLC films with tailored wettability properties for the promising hydrophobic applications. (C) 2016 Elsevier B.V. All rights reserved. |
| 学科主题 | Materials Science ; Physics |
| ISSN号 | 0925-9635 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/23430]  |
| 专题 | 会议专题 会议专题_会议论文 |
| 推荐引用方式 GB/T 7714 | Sun, Lili,Guo, Peng,Li, Xiaowei,et al. Comparative study on structure and wetting properties of diamond-like carbon films by W and Cu doping[C]. 见:. MAY 22-26, 2016. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。