Inorganic interface design as a tool for optimization of conducting polymers

CHED 259

Kristen Pueschel1, Justin J. Martin1, Cliff J. Timpson, ctimpson@rwu.edu2, Aaron Sattler1, Peter N. Kariuki1, Jay Shah1, and Wayne E. Jones Jr., wjones@binghamton.edu1. (1) Department of Chemistry and Institute for Materials Research, State University of New York at Binghamton, Binghamton University, Vestal Parkway East, Binghamton, NY 13902, (2) Department of Chemistry, Roger Williams University, One Old Ferry Road, Bristol, RI 02809
Recently, we reported that polyaniline thin films deposited in-situ onto surfaces prepared from cis-dichlorobis(2-2'-dipyridyl)ruthenium(II) or ruthenium (II) tetraphenyl porphyrin demonstrate a conductivity enhancement of nearly one order of magnitude. It is believed that these surfaces induce order in the polymer chains, resulting in enhanced carrier mobility. As such, this general surface based approach can be used to tune the properties of a wide variety of conducting polymers. We have since extended this study by probing a series of bound metalloporphyrins and a series of transition metal complexes with increasingly large aromatic ligands bound to a Ru(II) metal center. Additionally, transition metal complexes lacking an aromatic moiety have also been investigated. Here we will discuss a clear relationship between the physical properties of the surfaces and the sheet conductivity of conducting polymer thin films. Also of interest is the effect of the transition metal counter-ion on measured polymer properties.
 

Undergraduate Research Poster Session
2:30 PM-4:30 PM, Monday, August 20, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Chemical Education

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