Nanoscale molecular rectifiers

R Gupta, JA Fereiro, A Bayat, A Pritam… - Nature Reviews …, 2023 - nature.com
The use of molecules bridged between two electrodes as a stable rectifier is an important
goal in molecular electronics. Until recently, however, and despite extensive experimental …

Deposition condition impacts charge tunneling and thermoelectric properties of N-heterocyclic carbene monolayers

H Kang, J Jang, GD Kong, S Jung, T Ohto… - Journal of Materials …, 2023 - pubs.rsc.org
N-heterocyclic carbene (NHC) is an emerging anchor moiety for surface engineering and
various applications. While various deposition conditions have been reported, how these …

Deciphering I–V characteristics in molecular electronics with the benefit of an analytical model

D Taherinia, CD Frisbie - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
We share our perspective that a simple analytical model for electron tunneling in molecular
junctions can greatly aid quantitative analysis of experimental data in molecular electronics …

Validating the Mott formula with self-assembled monolayer (SAM)-based large-area junctions: effect of length, backbone, spacer, substituent, and electrode on the …

S Park, J Jang, HJ Yoon - The Journal of Physical Chemistry C, 2021 - ACS Publications
Understanding how the Seebeck effect of organic thermoelectric devices is associated with
the chemical structure of active molecules within the devices is a key goal in organic and …

Breakdown of Ohm's Law in Molecular Junctions with Electrodes of Single-Layer Graphene

I Bâldea, Y Chen, M Zhang, N Xin, Y Feng… - The Journal of …, 2024 - ACS Publications
For sufficiently low biases, Ohm's law, the cornerstone of electricity, stating that current I and
voltage V are proportional, is satisfied at low biases for all known systems ranging from …

Can room-temperature data for tunneling molecular junctions be analyzed within a theoretical framework assuming zero temperature?

I Bâldea - Physical Chemistry Chemical Physics, 2023 - pubs.rsc.org
Routinely, experiments on tunneling molecular junctions report values of conductances
(GRT) and currents (IRT) measured at room temperature. On the other hand, theoretical …

CP-AFM Molecular Tunnel Junctions with Alkyl Backbones Anchored Using Alkynyl and Thiol Groups: Microscopically Different Despite Phenomenological Similarity

Y Chen, I Bâldea, Y Yu, Z Liang, MD Li, E Koren, Z Xie - Langmuir, 2024 - ACS Publications
In this paper, we report results on the electronic structure and transport properties of
molecular junctions fabricated via conducting probe atomic force microscopy (CP-AFM) …

Quantitative analysis of weak current rectification in molecular tunnel junctions subject to mechanical deformation reveals two different rectification mechanisms for …

Z Xie, I Bâldea, Q Van Nguyen, CD Frisbie - Nanoscale, 2021 - pubs.rsc.org
Metal-molecule-metal junctions based on alkane thiol (CnT) and oligophenylene thiol
(OPTn) self-assembled monolayers (SAMs) and Au electrodes are expected to exhibit …

Why asymmetric molecular coupling to electrodes cannot be at work in real molecular rectifiers

I Bâldea - Physical Review B, 2021 - APS
Every now and then one hears in the molecular electronics community that asymmetric
couplings (Γ s≠ Γ t) of the dominant level (molecular orbital) to electrodes (s and t) which …

Quantifying Image Charge Effects in Molecular Tunnel Junctions Based on Self-Assembled Monolayers of Substituted Oligophenylene Ethynylene Dithiols

Z Xie, V Diez Cabanes, Q Van Nguyen… - … applied materials & …, 2021 - ACS Publications
A number of factors contribute to orbital energy alignment with respect to the Fermi level in
molecular tunnel junctions. Here, we report a combined experimental and theoretical effort …