Clearwing‐Inspired Invisible Thin Membrane

Author:

Kang Seong Min1ORCID,Choi Ji Seong1,Hong Jongwoo1,Lee Ok Hyeon1,Kang Insun1

Affiliation:

1. Department of Mechanical Engineering Chungnam National University Daejeon 34134 Republic of Korea

Abstract

AbstractAdvanced highly transparent films or membranes are required for diverse optical applications, including ophthalmology and the display industry. In general, bioinspired engineering is the most promising technology for obtaining highly transparent surfaces. This study proposes a novel perfluoropolyether (PFPE) highly transparent thin membrane with nanopatterns on both sides of the surface, inspired by the wings (clearwing) of Greta‐oto. PFPE is a superior material for achieving this goal because of its low refractive index and low surface energy. A clearwing‐inspired antireflective membrane (CAM) composed of PFPE is fabricated using a well‐designed polymer replica method. CAM exhibits outstanding optical properties and intriguing demonstrations of invisible trap sensors, both in air and water, with long‐term stability.

Publisher

Wiley

Subject

Atomic and Molecular Physics, and Optics,Electronic, Optical and Magnetic Materials

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