Choi Ji Seong, An Joon Hyung, Lee Jong-Kwon, Lee Ji Yun, Kang Seong Min
Department of Mechanical Engineering, Chungnam National University, Daejeon 34134, Korea.
National NANOFAB center, Division of Nano-Convergence Material Development, Daejeon 34141, Korea.
Polymers (Basel). 2020 Feb 2;12(2):296. doi: 10.3390/polym12020296.
Novel antireflective (AR) structures have attracted tremendous attention and been used in various applications such as solar cells, displays, wearable devices, and others. They have also stimulated the development of several other methods, including moth-eye-inspired technologies. However, the analyses of the shapes and sizes of nanostructures remain a critical issue and need to be considered in the design of effective AR surfaces. Herein, moth-eye and inverse-moth-eye patterned polyurethane-acrylate (PUA) structures (MPS and IMPS) with three different sizes are analyzed and compared to optimize the designed nanostructures to achieve the best optical properties pertaining to maximum transmittance and minimum reflectance. We fabricated moth-eye-inspired conical structures with three different sizes using a simple and robust fabrication method. Furthermore, the fabricated surfaces of the MPS and IMPS structures were analyzed based on the experimental and theoretical variation influences of their optical properties according to their sizes and shapes. As a result of these analyses, we herein propose a standard methodology based on the optimal structure of IMPS structure with a 300 nm diameter.
新型抗反射（AR）结构已引起了极大关注，并被应用于太阳能电池、显示器、可穿戴设备等各种领域。它们还推动了包括受蛾眼启发的技术在内的其他几种方法的发展。然而，纳米结构的形状和尺寸分析仍然是一个关键问题，在设计有效的AR表面时需要加以考虑。在此，对具有三种不同尺寸的蛾眼和反蛾眼图案化聚氨酯丙烯酸酯（PUA）结构（MPS和IMPS）进行了分析和比较，以优化设计的纳米结构，从而实现与最大透射率和最小反射率相关的最佳光学性能。我们使用一种简单且可靠的制造方法制造了具有三种不同尺寸的受蛾眼启发的锥形结构。此外，根据MPS和IMPS结构的尺寸和形状对其光学性质的实验和理论变化影响，对所制造的表面进行了分析。基于这些分析结果，我们在此提出了一种基于直径为300 nm的IMPS结构的最佳结构的标准方法。
