The development of dip pen nanolithography (DPN) has enabled the fabrication of industrial-scale molecular features on surfaces. DPN is based on a simple principle - the tip of an atomic force microscope (AFM) is inked with molecules, that upon tip-surface contact, diffuse to the surface due to the presence of a strong concentrating gradient. To write consistently and reliably with the tip, it should be kept clean, free from impurities and must be loaded with approximately the same amount of materials. The surface on which the patterns are to be written must also be uniformly clean.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Materials Science(all)
- Condensed Matter Physics
- Physics and Astronomy (miscellaneous)