Replication of cicada wing's nano-patterns by hot embossing and UV nanoimprinting

Sung Hoon Hong; Jaeyeon Hwang; Heon Lee

doi:10.1088/0957-4484/20/38/385303

Replication of cicada wing's nano-patterns by hot embossing and UV nanoimprinting

Sung Hoon Hong, Jaeyeon Hwang, Heon Lee

Research output: Contribution to journal › Article › peer-review

77 Citations (Scopus)

Abstract

The hydrophobicity of the cicada wing originates from its naturally occurring, surface nano-structure. The nano-structure of the cicada wing consists of an array of nano-sized pillars, 100nm in diameter and 300nm in height. In this study, the nano-structure of the cicada wing was successfully duplicated by using hot embossing lithography and UV nanoimprint lithography (NIL). The diameter and pitch of replication were the same as those of the original cicada wing and the height was a little smaller than that of the original master. The transmittance of the hot embossed PVC film was increased by 2-6% compared with that of the bare PVC film. The hydrophobicity was measured by water contact angle measurements. The water contact angle of the replica, made of UV cured polymer, was 132°± 2°, which was slightly lower than that of the original cicada wing (138°±2°), but much higher than that of the UV cured polymer surface without any nano-sized pillars (86°).

Original language	English
Article number	385303
Journal	Nanotechnology
Volume	20
Issue number	38
DOIs	https://doi.org/10.1088/0957-4484/20/38/385303
Publication status	Published - 2009 Sept 23

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Mechanics of Materials
Mechanical Engineering
Electrical and Electronic Engineering

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title = "Replication of cicada wing's nano-patterns by hot embossing and UV nanoimprinting",

abstract = "The hydrophobicity of the cicada wing originates from its naturally occurring, surface nano-structure. The nano-structure of the cicada wing consists of an array of nano-sized pillars, 100nm in diameter and 300nm in height. In this study, the nano-structure of the cicada wing was successfully duplicated by using hot embossing lithography and UV nanoimprint lithography (NIL). The diameter and pitch of replication were the same as those of the original cicada wing and the height was a little smaller than that of the original master. The transmittance of the hot embossed PVC film was increased by 2-6% compared with that of the bare PVC film. The hydrophobicity was measured by water contact angle measurements. The water contact angle of the replica, made of UV cured polymer, was 132°± 2°, which was slightly lower than that of the original cicada wing (138°±2°), but much higher than that of the UV cured polymer surface without any nano-sized pillars (86°).",

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Replication of cicada wing's nano-patterns by hot embossing and UV nanoimprinting

Abstract

ASJC Scopus subject areas

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