"Gold Nanocrystal Arrays: Synthesis, Self-Assembly and Electronic Transport" Xiao-Min Lin Chemical synthesis of nanocrystals is one of the most efficient ways to create nano-size building blocks for future electronic devices. Kinetically controlled syntheses have been developed in the past decade to obtain monodispersed semiconductor and metallic nanocrystals. We have discovered and alternative digestive ripening process to synthesize monodispsed gold nanocrystals. Much like normal atoms, colloidal nanocrystals can form 3D superlattices due to longrange van der Waals interaction. By controlling the dewetting of the solvent, highly long-range ordered nanocrystal monolayers and bilayers can also be formed on silicon nitride substrate. Lateral patterning of nanocrystals on the solid substrate can be achieved by combining the self-assembly process with standard electron beam lithography. These new techniques allow us to study the electronic transport through tunneling junction arrays at a length scale that has been impossible to achieve previously. Coulomb blockade of individual nanocrystals causes high voltage thresholds and nonlinear current voltage curve. Robust power law scaling behavior was observed in highly ordered nanocrystal arrays, while deviation from single power law was found in disordered arrays. These phenomena were attributed to both the charge disorder and the structural disorder.