论文标题
Lips-STICKS:激光诱导的双重自我组织增强了Tio2纳米管阵列的宽带光收集
LIPSS-Sticks: Laser induced double self organization enhances the broadband light harvesting of TiO2 nanotube arrays
论文作者
论文摘要
首次使用了由钛表面上的超短脉冲激光照射产生的周期性表面结构(LIPS粘)(LIPS粘),首次使用模拟二氧化钛纳米管阵列的电化学生长。这是一个双重自组织过程的一个例子,因为嘴唇形成和电化学阳极氧化均涉及从最初非有序的前体产生秩序。与二氧化钛平坦的二氧化钛相比,嘴唇粘的近红外光(400-1400 nm)的收集效率高2倍,这是由于光栅样结构的光散射增强。静电对纳米结构的生长进行了建模,以解释与平面表面通常阳极氧化不同的模板阳极化过程的特征。这种新的模板生长方法是一般的,也可以使用两种互补制造技术应用于Cu,W,Fe,Ti合金和AL用于层次上的纳米结构表面:超舒服的脉冲激光消融和电化学阳极化。
Sub-wavelength laser induced periodic surface structures (LIPSS-Sticks) created by ultrashort pulsed laser irradiation on the surface of titanium are used for the first time to template the electrochemical growth of titanium dioxide nanotube arrays. This is an example of a double self-organized process, as both LIPSS formation and electrochemical anodization involve spontaneous generation of order from initially non-ordered precursors. LIPSS-Sticks have a 2x greater visible to near infrared light (400 - 1400 nm) collection efficiency compared to flat titanium dioxide due to the enhanced light scattering from grating-like structures. The growth of nanostructures with time was modelled electrostatically to explain the features of a templated anodization process that differ from the usual anodization of flat surfaces. This new templated growth method is general and can also be applied to Cu, W, Fe, Ti alloys and Al for the fabrication of hierarchically nanostructured surfaces using two complementary fabrication techniques: ultrashort pulsed laser ablation and electrochemical anodization.