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Charge Separation in Layered Titanate Nanostructures: Effect of Ion Exchange Induced Morphology Transformation
Author(s) -
Riss Alexander,
Berger Thomas,
Stankic Slavica,
Bernardi Johannes,
Knözinger Erich,
Diwald Oliver
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200703817
Subject(s) - nanowire , nanostructure , materials science , nanotechnology , morphology (biology) , titanate , surface charge , complementarity (molecular biology) , charge (physics) , transformation (genetics) , chemical engineering , chemistry , composite material , ceramic , genetics , engineering , biology , biochemistry , physics , quantum mechanics , gene
Clear complementarity : Surface chemistry induced morphology transformation in layered titanate nanostructures can be used to control their photoelectronic properties. Na 2 Ti 3 O 7 nanowires can be transformed reversibly into nanotubes with acid/base treatment (see picture); the nanowires exhibit photoluminescence, which is suppressed in the nanotubes, while the charge separation is stronger in the nanotubes.