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Title: Radially oriented anthracene nanowire arrays: Preparation, growth mechanism, and optical fluorescence
Authors: Wu, J.H. 
Xu, T.Z.
Ang, S.G. 
Xu, Q.-H. 
Xu, G.Q. 
Issue Date: Apr-2011
Citation: Wu, J.H., Xu, T.Z., Ang, S.G., Xu, Q.-H., Xu, G.Q. (2011-04). Radially oriented anthracene nanowire arrays: Preparation, growth mechanism, and optical fluorescence. Nanoscale 3 (4) : 1855-1860. ScholarBank@NUS Repository.
Abstract: Radially oriented anthracene nanowires and their self-assembled concentric ring arrays were prepared through a facial solvent-evaporation method. The successful growth of anthracene nanowires can be attributed to a combined mechanism of molecular self-assembly facilitated by strong π-π intermolecular interactions together with evaporation-induced capillary flow and fingering instability. Their radial orientation is determined by the capillary flow; their shape (either straight or curved nanowires) is governed by the competition between the capillary and Marangoni convectional flows. The self-assembly of nanowires into large-scale concentric ring arrays can be interpreted in terms of the repeated slipping-and-sticking motions of the contact line. The high-quality crystalline anthracene nanowire arrays exhibit size-dependent fluorescence emission with high-degree anisotropy. © 2011 The Royal Society of Chemistry.
Source Title: Nanoscale
ISSN: 20403364
DOI: 10.1039/c0nr01012j
Appears in Collections:Staff Publications

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