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Scalable Nanopillar Arrays with Layer‐by‐Layer Patterned Overt and Covert Images
Author(s) -
Lee Kyoung G.,
Choi Bong Gill,
Kim Byeong Il,
Shyu Terry,
Oh Myung Seok,
Im Sung Gap,
Chang SungJin,
Lee Tae Jae,
Kotov Nicholas A.,
Lee Seok Jae
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201401246
Subject(s) - nanopillar , materials science , nanotechnology , dewetting , layer (electronics) , pillar , scalability , replication (statistics) , polymer , computer science , nanostructure , thin film , composite material , statistics , mathematics , structural engineering , database , engineering
Transferring flexible and scalable nanopillar arrays on a variety of unconventional substrates, including fabric, paper, and metals, is achieved by a single‐step replication process using UV‐curable polymers. Local alteration of the contact angle on the nanopillar arrays by LBL films creates selectively hidden images. They can be revealed by the breath and used as an innovative anti‐counterfeit technology.