Multipeak Negative Differential Resistance from Interplay between Nonlinear Stark Effect and Double-Branch Current Flow
arXiv:1409.3090 · doi:10.1039/C4RA10720A
Abstract
Multipeak negative differential resistance (NDR) molecular devices are designed from first principles. The effect of NDR is associated with the non-linear Stark shifts and the electron localization within the conductive region and contacts. Deep I(V)-curve well is formed when the aromatic molecule, containing intramolecular hydrogen bond, is connected to each lead by the double-branch contacts. This effect occurs at the same voltage where a single-junction case exhibits only a flat step in the current characteristics. The multipeak oscillations arise from the mutual effect of the Stark shifts located at the electron-rich contacts and parts of the molecule - this opens the route for further tailoring the desired properties.
9 pages, 5 figures
References in corpus (16)
- Density functional method for nonequilibrium electron transport
- Maximally-localized generalized Wannier functions for composite energy bands
- Wannier90: A Tool for Obtaining Maximally-Localised Wannier Functions
- Maximally localized Wannier functions: Theory and applications
- Large tunable image-charge effects in single-molecule junctions
- Theory of local heating in nanoscale conductors
- Transport through anisotropic magnetic molecules with partially ferromagnetic leads: Spin-charge conversion and negative differential conductance
- Non-trivial length dependence of the conductance and negative differential resistance in atomic molecular wires
- Graphene-Based Non-Boolean Logic Circuits
- Image charge effects in single-molecule junctions: Breaking of symmetries and negative differential resistance in a benzene transistor
- Single-Molecule Device Prototypes for Protein-Based Nanoelectronics: Negative Differential Resistance and Current Rectification in Oligopeptides
- Linear and nonlinear Stark effect in triangular molecule
- Automated quantum conductance calculations using maximally-localised Wannier functions
- First Principles Quantum Transport with Electron-vibration Interactions: A Maximally Localized Wannier Function Approach
- Switching the Conductance of a Molecular Junction using a Proton Transfer Reaction
- Dynamical coupling and negative differential resistance from interactions across the molecule-electrode interface in molecular junctions