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Millimeter‐Scale Assembly of CdSe Nanorods into Smectic Superstructures by Solvent Drying Kinetics
Author(s) -
Querner Claudia,
Fischbein Michael D.,
Heiney Paul A.,
Drndić Marija
Publication year - 2008
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.200800125
Subject(s) - materials science , capillary action , nanorod , superstructure , micrometer , nanotechnology , kinetics , millimeter , nanometre , chemical engineering , composite material , optics , physics , quantum mechanics , oceanography , geology , engineering
Solid‐state CdSe nanorod (NR) smectic superstructures (see figure) on a millimeter scale are achieved by exploiting capillary flow kinetics of a drying droplet. NRs assemble side‐to‐side into micrometer‐long “tracks”, acting as individual building blocks that assemble by capillary forces into smectic superstructures. The size of the superstructures and the short drying time makes the capillary‐flow mechanism of ordered self‐assembly attractive for general NR‐superstructure studies and applications.