Lou Rui, Li Guangying, Wang Xu, Zhang Wenfu, Wang Yishan, Zhang Guodong, Wang Jiang, Cheng Guanghua
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics of CAS, Xi'an 710119, China.
School of Future Technology, University of Chinese Academy of Sciences, Beijing 100049, China.
Micromachines (Basel). 2021 Feb 26;12(3):236. doi: 10.3390/mi12030236.
Antireflection and superhydrophilicity performance are desirable for improving the properties of electronic devices. Here, we experimentally provide a strategy of femtosecond laser preparation to create micro-nanostructures on the graphite surface in an air environment. The modified graphite surface is covered with abundant micro-nano structures, and its average reflectance is measured to be 2.7% in the ultraviolet, visible and near-infrared regions (250 to 2250 nm). The wettability transformation of the surface from hydrophilicity to superhydrophilicity is realized. Besides, graphene oxide (GO) and graphene are proved to be formed on the sample surface. This micro-nanostructuring method, which demonstrates features of high efficiency, high controllability, and hazardous substances zero discharge, exhibits the application for functional surface.
抗反射和超亲水性性能对于改善电子设备的性能是很有必要的。在此，我们通过实验提供了一种飞秒激光制备策略，以在空气环境中在石墨表面创建微纳结构。改性后的石墨表面覆盖有丰富的微纳结构，在紫外、可见和近红外区域（250至2250nm）测得其平均反射率为2.7%。实现了表面从亲水性到超亲水性的润湿性转变。此外，证明样品表面形成了氧化石墨烯（GO）和石墨烯。这种微纳结构化方法具有高效、高可控性和有害物质零排放的特点，展示了其在功能表面的应用。
