Large-Area One-Step Assembly of Three-Dimensional Porous Metal Micro/Nanocages by Ethanol-Assisted Femtosecond Laser Irradiation for Enhanced Antireflection and Hydrophobicity

被引：61

作者：

Li, Guoqiang ^{[1
]}

Li, Jiawen ^{[1
]}

Zhang, Chenchu ^{[1
]}

Hu, Yanlei ^{[1
]}

Li, Xiaohong ^{[2
]}

Chu, Jiaru ^{[1
]}

Huang, Wenhao ^{[1
]}

Wu, Dong ^{[1
]}

机构：

[1] Univ Sci & Technol China, Micro Nano Engn Lab, Hefei 230026, Anhui, Peoples R China

[2] Southwest Univ Sci & Technol, Extreme Condit Mat Properties Lab, Mianyang 621010, Sichuan, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 01期

基金：

美国国家科学基金会;

关键词：

femtosecond laster 3D processing; large-area; porous metal micro/nanocages arrays; antireflection; surface wettability; SURFACE; NICKEL; PULSES; FABRICATION; MICROSTRUCTURES; SOLAR; NANOSTRUCTURES; NANOCRYSTALS; RIPPLES; GROWTH;

D O I：

10.1021/am506291f

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The capability to realize 2D-3D controllable metallic micro/nanostructures is of key importance for various fields such as plasmonics, electronics, bioscience, and chemistry due to unique properties such as electromagnetic field enhancement, catalysis, photoemission, and conductivity. However, most of the present techniques are limited to low-dimension (1D-2D), small area, or single function. Here we report the assembly of self-organized three-dimensional (3D) porous metal micro/nanocages arrays on nickel surface by ethanol-assisted femtosecond laser irradiation. The underlying formation mechanism was investigated by a series of femtosecond laser irradiation under exposure time from 5 to 30 ms. We also demonstrate the ability to control the size of micro/nanocage arrays from 0.8 to 2 μm by different laser pulse energy. This method features rapidness (∼10 min), simplicity (one-step process), and ease of large-area (4 cm2 or more) fabrication. The 3D cagelike micro/nanostructures exhibit not only improved antireflection from 80% to 7% but also enhanced hydrophobicity from 98.5° to 142° without surface modification. This simple technique for 3D large-area controllable metal microstructures will find great potential applications in optoelectronics, physics, and chemistry. © 2014 American Chemical Society.

引用

页码：383 / 390

页数：8

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