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5 papers · 1 filter
Modulation of Electrical Conduction Through Individual Molecules on Silicon by the Electrostatic Fields of Nearby Polar Molecules: Theory and Experiment
George Kirczenow, Paul G. Piva, Robert A. Wolkow
We report on the synthesis, scanning tunneling microscopy (STM) and theoretical modeling of the electrostatic and transport properties of one-dimensional organic heterostructures c…
The shape of disorder broadened Landau subbands in graphene
W. Zhu, Q. W. Shi, X. R. Wang +2
Density of states (DOS) of graphene under a high uniform magnetic field and white-noise random potential is numerically calculated. The disorder broadened zero-energy Landau band h…
Gas Sensing Properties of Single Conducting Polymer Nanowires and the Effect of Temperature
Yaping Dan, Yanyan Cao, Tom E. Mallouk +2
We measured the electronic properties and gas sensing responses of template-grown poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT/PSS)-based nanowires. The nanowires…
Non-Local Conductance Modulation by Molecules: STM of Substituted Styrene Heterostructures on H-Terminated Si(100)
Paul G. Piva, Robert A. Wolkow, George Kirczenow
One-dimensional organic heterostructures consisting of contiguous lines of CF3- and OCH3-substituted styrene molecules on silicon are studied by scanning tunneling microscopy and a…
Electronic Structure in Gapped Graphene with Coulomb Potential
W. Zhu, M. L. Liang, Q. W. Shi +3
In this paper, we numerically study the bound electron states induced by long range Coulomb impurity in gapped graphene and the quasi-bound states in supercritical region based on…