Temperature Dependence of Coulomb Oscillations on DNA-Mediated Au Nanoparticle Assembly.

We fabricated a single-electron transistor using DNA-assisted assembly of Au nanoparticles. Most devices exhibited clear Coulomb blockade and oscillations. In contrast to conventional single-electron transistors, however, the period of Coulomb oscillations was observed to depend on the temperature. This temperature dependence is probably ascribed to the temperature dependence of gate capacitance. [ABSTRACT FROM PUBLISHER]