Optimization of Shapes and Sizes of Moth-Eye-Inspired Structures for the Enhancement of Their Antireflective Properties
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 analy...
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doaj-3475e46a038c4af0a92c4e3a91f064eb2020-11-25T01:40:00ZengMDPI AGPolymers2073-43602020-02-0112229610.3390/polym12020296polym12020296Optimization of Shapes and Sizes of Moth-Eye-Inspired Structures for the Enhancement of Their Antireflective PropertiesJi Seong Choi0Joon Hyung An1Jong-Kwon Lee2Ji Yun Lee3Seong Min Kang4Department of Mechanical Engineering, Chungnam National University, Daejeon 34134, KoreaDepartment of Mechanical Engineering, Chungnam National University, Daejeon 34134, KoreaNational NANOFAB center, Division of Nano-Convergence Material Development, Daejeon 34141, KoreaNational NANOFAB center, Division of Nano-Convergence Material Development, Daejeon 34141, KoreaDepartment of Mechanical Engineering, Chungnam National University, Daejeon 34134, KoreaNovel 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.https://www.mdpi.com/2073-4360/12/2/296moth-eye structuresinverse-moth-eye structuresanti-reflective surfacesdiffraction grating effectdouble replication method |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ji Seong Choi Joon Hyung An Jong-Kwon Lee Ji Yun Lee Seong Min Kang |
spellingShingle |
Ji Seong Choi Joon Hyung An Jong-Kwon Lee Ji Yun Lee Seong Min Kang Optimization of Shapes and Sizes of Moth-Eye-Inspired Structures for the Enhancement of Their Antireflective Properties Polymers moth-eye structures inverse-moth-eye structures anti-reflective surfaces diffraction grating effect double replication method |
author_facet |
Ji Seong Choi Joon Hyung An Jong-Kwon Lee Ji Yun Lee Seong Min Kang |
author_sort |
Ji Seong Choi |
title |
Optimization of Shapes and Sizes of Moth-Eye-Inspired Structures for the Enhancement of Their Antireflective Properties |
title_short |
Optimization of Shapes and Sizes of Moth-Eye-Inspired Structures for the Enhancement of Their Antireflective Properties |
title_full |
Optimization of Shapes and Sizes of Moth-Eye-Inspired Structures for the Enhancement of Their Antireflective Properties |
title_fullStr |
Optimization of Shapes and Sizes of Moth-Eye-Inspired Structures for the Enhancement of Their Antireflective Properties |
title_full_unstemmed |
Optimization of Shapes and Sizes of Moth-Eye-Inspired Structures for the Enhancement of Their Antireflective Properties |
title_sort |
optimization of shapes and sizes of moth-eye-inspired structures for the enhancement of their antireflective properties |
publisher |
MDPI AG |
series |
Polymers |
issn |
2073-4360 |
publishDate |
2020-02-01 |
description |
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. |
topic |
moth-eye structures inverse-moth-eye structures anti-reflective surfaces diffraction grating effect double replication method |
url |
https://www.mdpi.com/2073-4360/12/2/296 |
work_keys_str_mv |
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