Abstract:
:Membranes with nano-apertures are versatile templates that possess a wide range of electronic, optical and biomedical applications. However, such membranes have been limited to silicon-based inorganic materials to utilize standard semiconductor processes. Here we report a new type of flexible and free-standing polymeric membrane with nano-apertures by exploiting high-wettability difference and geometrical reinforcement via multiscale, multilevel architecture. In the method, polymeric membranes with various pore sizes (50-800 nm) and shapes (dots, lines) are fabricated by a hierarchical mould-based dewetting of ultraviolet-curable resins. In particular, the nano-pores are monolithically integrated on a two-level hierarchical supporting layer, allowing for the rapid (<5 min) and robust formation of multiscale and multilevel nano-apertures over large areas (2 × 2 cm(2)).
journal_name
Nat Communjournal_title
Nature communicationsauthors
Cho H,Kim J,Park H,Won Bang J,Seop Hyun M,Bae Y,Ha L,Yoon Kim D,Min Kang S,Jung Park T,Seo S,Choi M,Suh KYdoi
10.1038/ncomms4137subject
Has Abstractpub_date
2014-01-01 00:00:00pages
3137issn
2041-1723pii
ncomms4137journal_volume
5pub_type
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