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Large‐Scale Controllable Patterning Growth of Aligned Organic Nanowires through Evaporation‐Induced Self‐Assembly
Author(s) -
Bao Rongrong,
Zhang Chengyi,
Wang Zhongliang,
Zhang Xiujuan,
Ou Xuemei,
Lee ChunSing,
Jie Jiansheng,
Zhang Xiaohong
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201102395
Subject(s) - nanowire , evaporation , fabrication , materials science , substrate (aquarium) , nanotechnology , nanostructure , nanomaterials , nanoscopic scale , surface tension , optoelectronics , quantum mechanics , medicine , oceanography , alternative medicine , pathology , geology , thermodynamics , physics
Organic one‐dimensional nanostructures are attractive building blocks for electronic, optoelectronic, and photonic applications. Achieving aligned organic nanowire arrays that can be patterned on a surface with well‐controlled spatial arrangement is highly desirable in the fabrication of high‐performance organic devices. We demonstrate a facile one‐step method for large‐scale controllable patterning growth of ordered single‐crystal C 60 nanowires through evaporation‐induced self‐assembly. The patterning geometry of the nanowire arrays can be tuned by the shape of the covering hats of the confined curve‐on‐flat geometry. The formation of the pattern arrays is driven by a simple solvent evaporation process, which is controlled by the surface tension of the substrate (glass or Si) and geometry of the evaporation surface. By sandwiching a solvent pool between the substrate and a covering hat, the evaporation surface is confined to along the edge of the solvent pool. The geometry of the formed nanowire pattern is well defined by a surface‐tension model of the evaporation channel. This simple method is further established as a general approach that is applicable to two other organic nanostructure systems. The I – V characteristics of such a parallel, organic, nanowire‐array device was measured. The results demonstrate that the proposed method for direct growth of nanomaterials on a substrate is a feasible approach to device fabrication, especially to the fabrication of the parallel arrays of devices.