Recently we reported STM THB(Thermochemical Hole Burning) Data Storage. Here we study the influence of pulse voltage and duration on hole size. It is demonstrated that with the increase of pulse voltage and duration, the hole size increases correspondingly. Furthermore, theoretical analysis was conducted, which was successfully used to interpret our experimental results.
DNA/octadecylamine(ODA) monolayers were transferred onto silicon substrates and the morphologies of the monolayers were investigated by Atomic Force Microscope(AFM). AFM images show that the morphologies of DNA dissolved in pure water are very different from those of DNA dissolved in the NaCl solution. When DNA molecules are dissovled in pure water, they will form ball-like structure in the monolayer. When the DNA molecules are dissolved in NaCl solution, they will form bunch lines. This DNA line offers a valuable template to direct the formation of unique inorganic nanomaterials.
