硕士生导师
个人信息Personal Information
教师英文名称：Hongbo Wang
入职时间：2022-06-29
学历：博士研究生毕业
学位：工学博士学位
办公地点：西南交通大学犀浦校区3号教学楼31608，智慧城市与交通学院
性别：男
在职信息：在岗
主要任职：智能制造与装备系主任助理
其他任职：智慧城市与交通学院本科教学秘书
毕业院校：西南交通大学
学科：机械制造及其自动化
所在单位：城市轨道交通学院（智慧城市与交通学院）
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Chemical corrosion resistance mechanism of fabric-like flexible plasma sensors
影响因子：6.3
DOI码：10.1016/j.apsusc.2024.161915
所属单位：西南交通大学
教研室：微纳制造及超精密传感技术
发表刊物：Applied Surface Science
关键字：Flexible sensor；Plasmonic sensor；Nanostructures；Corrosion resistance；Oxygen plasma etching；Polydimethylsiloxane
摘要：The flexible plasmonic sensor has triggered tremendous efforts for on-demand, on-site, in-situ, and real-time monitoring applications due to its ideal conformal contact, excellent optical tunability, high mechanical stability, and sensing repeatability. However, the corrosion resistance of flexible plasmonic sensors is often overlooked and remains an intractable obstruction. Herein, flexible fabric-like plasmonic nanostructures were developed and investigated in detail as a promising platform to resist chemical corrosion. The underlying mechanism for the chemical corrosion resistance of this fabric-like plasma nanostructure stems from two aspects: firstly, X-ray photoelectron spectroscopy (XPS) results demonstrate that oxygen plasma etching fractures the Si-O-Si and Si-C bonds, generating abundant Si–OH and C-OH bonds on the surface of the flexible substrate, thereby promoting condensation reactions between the flexible substrate material and Au, resulting in stable Si-O-Cr and C-O-Cr bonds; secondly, comparative experimental results indicate that the anchoring effect of the nanostructure with noble metals hinders the penetration and corrosion of liquid molecules at the interface. As a result, this plasmonic sensor with a fabric-like nanostructure can remain stable for more than 36 h in acidic, alkaline, and neutral solutions, and accurately identify target molecules at ultra-low concentrations. This work highlights the importance of surface nanostructures in enhancing acid and alkali resistance of flexible substrates, providing a reference strategy for the design and fabrication of other corrosion-resistant flexible sensors.
合写作者：邬春阳,毛宇聪,赵志俊,宋斌,余丙军
第一作者：汪红波
论文类型：基础研究
通讯作者：钱林茂
学科门类：工学
文献类型：J
卷号：684
页面范围：161915
是否译文：否
发表时间：2024-11-29
收录刊物：SCI
发布期刊链接：https://www.sciencedirect.com/science/article/pii/S016943322402631X