红外与激光工程, 2020, 49 (12): 20201064, 网络出版: 2021-01-14   

利用飞秒激光照射调控氧化石墨烯表面的浸润性能(特邀) 下载: 550次

Control of the wettability of graphene oxide surface with femtosecond laser irradiation (Invited)
作者单位
1 中国科学院长春光学精密机械与物理研究所,吉林 长春 130033;中国科学院大学,北京 100049
2 中国科学院长春光学精密机械与物理研究所,吉林 长春 130033
摘要
基于飞秒激光照射的改形控性技术是近些年发展起来的新兴微纳加工技术,其在快速、大面积、周期性亚波长结构的制备上展现出了独特优势。文中利用该技术在氧化石墨烯薄膜表面开展亚波长光栅结构的快速制备,并针对其中的加工机理、形貌变化及其液体浸润性进行了详细研究。通过改变飞秒激光功率和扫描速度等参数,实验获得了具有不同深宽比和表面“粗糙度”的还原氧化石墨烯样品,实现了液体接触角在15°~75°范围内可控的浸润性,并且其接触角在空气中放置20天后平均增加20°。文中的理论和实验结果为飞秒激光微纳加工和改性处理技术的发展奠定了基础,未来有望促进结构化石墨烯衍生材料在液滴收集、微流控等方面的应用。
Abstract
Modification of material surface morphology and properties based on femtosecond laser irradiation is a novel processing technology developed in recent years, which has shown unique advantages in high-speed, large-area and periodic subwavelength structure fabrications. Here this method was employed to rapidly fabricate uniform subwavelength grating structures on the surface of GO film, and then the processing mechanisms, the change of morphology and liquid wettability were investigated comprehensively. Through using different experimental parameters such as the laser power and the scanning speed, the rGO grating structures with variable depth-width ratios and surface "roughness" were obtained, leading to the controllable wettability with the liquid contact angles in a range of 15° to 75°, and their contact angles were found to increase by an average of 20° after 20 days in the air. Our work lays a solid foundation for femtosecond laser micro/nano-processing of two-dimensional materials. It is expected to have the future applications in the field of droplet collection, microfluidic control, and so on.

王飞跃, 邹婷婷, 辛巍, 杨建军. 利用飞秒激光照射调控氧化石墨烯表面的浸润性能(特邀)[J]. 红外与激光工程, 2020, 49(12): 20201064. Feiyue Wang, Tingting Zou, Wei Xin, Jianjun Yang. Control of the wettability of graphene oxide surface with femtosecond laser irradiation (Invited)[J]. Infrared and Laser Engineering, 2020, 49(12): 20201064.

本文已被 3 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!