INOR 262 |
| Many applications in catalysis, electrochemistry, electro-optics and sensors, require the preparation of ultra thin films or the formation of arrays of nanostructured features on surfaces. Ultra thin films of polyoxometalates-porphyrin composite materials formed by electrostatic layer-by-layer (LBL) methods have been prepared. Tetra(N-methyl-4-pyridinium)porphyrin and [EuPW11O39]4- have been deposited on mica, glass and ITO substrates through a LBL self-assembly method that involved the sequential absorption of oppositely charged species from dilute solutions. The resulting films have been characterized by UV-Vis, fluorescence, and AFM. A new technique to create nano to micro scaled patterns of functional photonic materials using a stamping method developed in our lab enables direct fabrication of architectures without employing advanced lithographic tooling or “wet” chemistry for pattern development. The formation of the patterned photonic materials is accomplished incorporating selected porphyrinoids into commodity polymers and using it in our polymer imprinting lithography technique to create patterns of the doped polymer.
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Nanoscience: Applications
7:00 PM-10:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster
Sci-Mix
Division of Inorganic Chemistry |
