Abstract:

This article reports on the electrostatic driven self-assembly of nanoparticles onto charged
surface areas (receptors) with sub-100 nm resolution from the gas-phase. The charged areas were fabricated using an electric nanocontact printing method that employs a flexible, electrically conductive electrode to pattern electrons and holes in a thin film electret. As  electrodes, we used 10 micrometer thick doped silicon wafers carrying a pattern in topography. Areas as large as 1 square centimeter were patterned with charge with 100 nanometer resolution in 10 seconds. A transparent particle assembly module was used to direct and monitor the assembly of organic and inorganic nanoparticles generated from an electrospraying and an evaporative process. Assembly was accomplished with sub-100 nm resolution.

http://www.ece.umn.edu/users/hjacobs/publications/2005proceedingsDMI0217538.pdf