AVS 58th Annual International Symposium and Exhibition
    Surface Science Division Tuesday Sessions
       Session SS+EM-TuA

Paper SS+EM-TuA4
Characterization of Quinonoid Zwitterion Molecular Films on Metal Surfaces

Tuesday, November 1, 2011, 3:00 pm, Room 110

Session: Organic Electronic Interfaces
Presenter: Lucie Routaboul, Lab. de Chimie de Coordination (UMR 7177 CNRS), France
Authors: L. Routaboul, Lab. de Chimie de Coordination (UMR 7177 CNRS), France
P. Braunstein, Lab. de Chimie de Coordination (UMR 7177 CNRS), France
B. Doudin, Inst. de Phys. et Chimie des Mat. de Strasbourg, France
J. Xiao, Nebraska Ctr. for Mat. & Nanosci.
Z. Zhang, Nebraska Ctr. for Mat. & Nanosci.
Y.B. Losvyj, The J. Bennett Johnston Sr. Ctr. for Adv. Microstructures & Devices
O. Kizilkaya, The J. Bennett Johnston Sr. Ctr. for Adv. Microstructures & Devices
L.G. Rosa, Univ. of Puerto Rico-Humacao
P.A. Dowben, Nebraska Ctr. for Mat. & Nanosc.
Correspondent: Click to Email

There is considerable interest in the functionalization of metal surfaces by molecules with large dipoles. For this purpose, p-benzoquinonemonimine-type zwitterions represent ideal candidates. These zwitterions can be anchored on gold surfaces where they form homogeneous thin films with the dipole preferentially oriented along the surface normal.[1] Some zwitterions will selectively adsorb on patterned gold substrates from solution while selective deposition of the zwitterions onto specific ferroelectric domains has been demonstrated. This represents an attractive approach to pattern molecular deposition on optically transparent planar substrates through electrostatic dipolar interactions or orientation dipole controlled surface chemistry. Taking advantage of the high solubility of two zwitterions in both organic solvents and water, we studied the influence of the solvent on the functionnalization of surface.[2] The goal is to control both packing and selective deposition on a variety of substrates through zwitterion solvent combination.

Acknowledgement. This research was supported by the CNRS and the Ministère de la Recherche et des Nouvelles Technologies, the ANR (07-BLAN-0274-04), the National Science Foundation (grants CHE-0909580 and DMR-0851703), and the Nebraska Center for Materials and Nanoscience at the University of Nebraska-Lincoln.