Device structure for electronic transport through individual molecules using nanoelectrodes

摘要: We present a simple and reliable method for making electrical contacts to small organic molecules with thiol endgroups. Nanometer-scale gaps between metallic electrodes have been fabricated by passing large current through lithographically-patterned Au-line appropriate thickness. Under conditions, the passage of breaks Au-line, creating two opposite facing separated gap comparable length molecules. Current-voltage characteristics measured both before after deposition short The resistance single 1,4-benzenedithiol 1,4-bezenedimethanedithiol were found be 9MΩ 26MΩ, respectively. experimental results indicate strong electronic coupling are discussed using relatively model mesoscopic transport. use formed on an insulating surface lithography electromigration provides stable structure suitable integrated circuit a...