The Role of Organic Conductors in a World of Nanoscience
Nanoscience, i.e., the study of assemblies from the submicroscopic (in the optical spectrum) to the molecular length scale, is one of the most pervasive topics in current materials chemistry and physics research, with interdisciplinary potential from biology to engineering. Nanoscience opportunities for molecular conductors research exists especially in the area of patterned conducting films, which could eventually lead to molecular electronics applications. Our work has focussed on the fabrication of micro-and nanocrystalline films of BEDT-TTF and their conducting salts on noble micro-and substrates, where the crystallization was forced to follow previously deposited nanoscale patterns of specially derivatized thiols. These patterns were produced either by the dip-pen nanolithography or micro-contact printing techniques. In preparation for the advent of new focussed synchrotron beam lines with 10-20 nm spot sizes, we have mapped the sulfur Kα fluorescence emitted by the patterned BEDT-TTF films. The sulfur fluorescence distribution is a sensitive tool to assess the quality of the deposited patterns.
KeywordsAtomic Force Microscopy Diblock Copolymer Organic Conductor Advance Photon Source Molecular Conductor
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