Subpattern formation during condensation processes on structured substrates | Zendy

Claudia Schäfle | Zendy; P. Leǐderer | Zendy; Clemens Bechinger | Zendy

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Subpattern formation during condensation processes on structured substrates

Author(s) -

Claudia Schäfle,

P. Leǐderer,

Clemens Bechinger

Publication year - 2003

Publication title -

epl (europhysics letters)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.625

H-Index - 165

eISSN - 1286-4854

pISSN - 0295-5075

DOI - 10.1209/epl/i2003-00540-7

Subject(s) - nucleation , condensation , chemical physics , lattice (music) , range (aeronautics) , materials science , chemical engineering , nanotechnology , chemistry , physics , meteorology , composite material , organic chemistry , acoustics , engineering

We investigate the temporal and spatial development of condensation patterns on chemically patterned substrates. We find that droplets condense preferentially on lyophilic sites and are surrounded by a depletion zone where no further nucleation occurs. The size of the depletion zones can be tuned by the flow rate of the incoming gas stream. If the size of the depletion zones is in a suitable range, well-defined droplets grow on the interstitial sites of the lyophilic lattice, i.e. on the non-structured areas. This can lead to ordered substructures.

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