Gutenberg-Style Printing of Self-Assembled Nanoparticle Arrays: Electrostatic Nanoparticle Immobilization and DNA-Mediated Transfer

摘要

Nanofabrication tools such as electron beami and scanning probe lithography can be used to fabricate nanostructures with resolutions well beyond the capability of today's most advanced photolithography tools. A general drawback of these direct-write techniques, however, is their slow writing speed, prohibiting their direct exploitation in commercial fabrication processes. Novel nanoprinting techniques such as microcontact printing (μCP), nanoimprinting, and nanostencil lithography could offer a practical solution to this limitation, as they make it possible to replicate these nanostructures in repetitive printing cycles, offering the opportunity to produce complex nanostructures at low cost, with otherwise unmatched resolution capabilities. So far, a number of printing techniques have been developed that exploit the specific affinity of molecular inks to stamp (i.e., print master) and print substrates.