Self-assembly of high quality nanowires from rigid, planar aromatic molecules and applications in optoelectronic sensing

ORGN 2

Ling Zang, lzang@chem.siu.edu1, Jeffrey S. Moore, moore@scs.uiuc.edu2, Yanke Che, ykche@chem.siu.edu1, Kaushik Balakrishnan, kaushik@siu.edu1, Tammene Naddo1, and Aniket Datar, adatar@siu.edu1. (1) Department of Chemistry and Biochemistry, Southern Illinois University, Carbondale, IL 62901, (2) Department of Chemistry and Materials Sciences and Engineering, University of Illinois at Urbana-Champaign, 600 South Mathews, Urbana, IL 61801
Organic nanowires have gained increasing interests in the past few years, largely due to the potential applications in various nanodevices. It is evidenced that nanowires fabricated from rigid, planar aromatic molecules possess one-dimensional (1D) optical and electronic properties along long-axis of nanowire, usually the same direction of molecular stacking. Such 1D confined properties are highly favorable for long-range charge transport and exciton migration, making the nanowires unique building blocks for optoelectronic devices. However, it remains a challenging task to fabricate uniform, highly controllable nanowires from organic molecules. Self-assembly, incorporating various intermolecular interactions, has proven effective for fabricating 1D nanomaterials. In this talk, some of our recent progress in controlling the size and morphology of 1D self-assembly, mainly through cooperative optimization of molecular structure and solution processing, will be presented. Systematic exploration of the structure-property-function relationship of these 1D nanomaterials and the applications in optoelectronic sensing of VOCs will also be discussed.
 

Young Academic Investigators
8:00 AM-12:00 PM, Sunday, August 19, 2007 BCEC -- Ballroom, Oral

Division of Organic Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007