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Now showing items 181-190 of 210
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Charge transport in oligophenylenvinylene molecules
(2008)We have performed a theoretical analysis of current transport in oligophenylenvinylene (OPV) molecules based on the density functional tight-binding (DFTB) method, extended to the non-equilibrium Green's functions (NEGF) ... -
Importance of Coulomb interactions in bound-to-continuum THz quantum cascade lasers
(2009)We demonstrate the importance of Coulomb interactions in bound-to-continuum THz quantum cascade lasers, employing an ensemble Monte-Carlo analysis. In such structures, the electron-electron interactions between the closely ... -
Organic field-effect transistors for biosensing applications
(2009)Organic field-effect transistors (OFETs) with regioregular poly(3-hexylthiophene) (P3HT) have been designed and fabricated aiming at the lowest possible working point (i.e. the adjusted values of gate voltage and drain-source ... -
Circuit modelling of coupling between nanosystems and microwave coplanar waveguides
(2007)Exploiting the coupling between microwave waveguides and nanosystems is emerging as a new, powerful method of probing nanoscale devices. Such 'on-chip spectroscopy' was already demonstrated on superconducting quantum ... -
Transient TCAD simulation of three-stage organic ring oscillator
(SPRINGER, 2006)It is demonstrated that drift-diffusion simulation is a powerful tool in design, optimization and verification of organic circuits. Starting from the simulation of single transistor structures, we treat inverter circuits ... -
Micromagnetic simulation of current-driven domain wall propagation
(2007)We develop a method to model the interaction of currents and domain walls in a standard micromagnetic simulator. The interaction of spin-polarized currents and localized magnetic moments can be described by a current-induced ... -
Silicon nanowires: Catalytic growth and electrical characterization
(2006)Nominally undoped silicon nanowires (NW) were grown by catalytic chemical vapor deposition. The growth process was optimized to control the NWs diameters by using different Au catalyst thicknesses on amorphous SiO, Si N, ... -
Modeling of circuits and architectures for molecular electronics
(Kluwer Academic Publishers, 2009)The considerable progress of recent years have demonstrated the potential of molecular electronics to first enhance the capabilities of silicon electronics and, possibly, to substitute it when the intrinsic physical limits ... -
Comparative analysis of resonant phonon THz quantum cascade lasers
(AMER INST PHYSICS, 2007)We present a comparative analysis of a set of GaAs-based THz quantum cascade lasers, based on longitudinal-optical phonon scattering depopulation, by using an ensemble Monte Carlo simulation, including both carrier-carrier ... -
A New Admittance Type Haptic Interface for Bimanual Manipulations
(2008)The concept of a new mobile haptic interface for bimanual manipulations in 6 DOFs is presented. The design of this mobile haptic interface is based on a modular system consisting of two components: two admittance-type ...
