COLL 249 |
| Guangming Liu, Department of Chemistry, University of California Riverside, 900 University Ave, Riverside, CA 92521, F. Zaera, Chemistry, University of California, Riverside, CA 92521, and David F. Bocian, Chemistry Department, U of CA, Pierce Hall, Riverside, CA 92521. |
| Self-assembled monolayers (SAMs) have attracted significant interest in designing and constructing molecular electronics with tailored surface properties. In particular, SAMs of porphyrin and ferrocene molecules deposited on electrodes can be used for the design of molecular-based information storage devices. In this work, a series of self-assembled monolayers of porphyrin and ferrocene derivatives have been prepared on gold surfaces and characterized by x-ray photoelectron spectroscopy (XPS) and grazing angle reflectance absorption infrared spectroscopy (RAIRS). A lowering in the binding energy of the S2p XPS of the molecules in the SAMs indicates the formation of S-Au bonds. Additional analysis of the RAIRS data indicates that the porphyrins and ferrocenes moieties are both tilted on Au surface. Cyclic voltammetric (CV) experiments were also carried out to confirm the SAM formation as well as to characterize their electrical properties. |
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Posters: Fundamental Research in Surface and Colloid Chemistry
6:00 PM-8:00 PM, Monday, March 29, 2004 Disneyland -- North Exhibit Hall, Poster
Division of Colloid and Surface Chemistry |