Strongly Correlated Aromatic Molecular Conductor

Abstract

Strongly correlated electronic molecules open the way for strong coupling between charge, spin, and lattice degrees of freedom to enable interdisciplinary fields, such as molecular electronic switches and plasmonics, spintronics, information storage, and superconducting circuits. However, despite exciting computational predictions and promising advantages to prepare flexible geometries, the electron correlation effect in molecules has been elusive. Here, the electron correlation effects of molecular plasmonic films are reported to uncover their coupling of charge, spin, lattice, and orbital for the switchable metal-to-insulator transition under external stimuli, at which the simultaneous transition occurs from the paramagnetic, electrical, and thermal conducting state to the diamagnetic, electrical, and thermal insulating state. In addition, density functional theory calculation and spectroscopic studies are combined to provide the mechanistic understanding of electronic transitions and molecular plasmon resonance observed in molecular conducting films. The self-assembled molecular correlated conductor paves the way for the next generation integrated micro/nanosystems. Plasmonic FilmsMaterials in which the electrons are strongly correlated show unusual electronic, optical, and magnetic properties, including metal-insulator transition (MIT), [1] colossal magnetoresistance, [2]

Poly-p-phenylenes as Novel Bulk-type Anode Materials for Potassium-Ion Batteries: A First-Principles Study

“…Inspired by this feature, poly- p -phenylene (PPP), an organic phenyl system with a porous network structure composed of C and H, is also expected to be used as electrode materials for PIBs. The structures and fabrications of K-intercalated PPPs have been studied preliminarily. − Previous studies showed that the K-intercalated PPP can be obtained by the solid-state reaction between pure potassium lumps and PPP sealed in glass tubes under high-vacuum conditions. ,− In this paper, therefore, we study K-intercalated PPP to examine the feasibility of PPP as the anode of PIBs, based on the first-principles calculations. Selected two typical systems of PPPs, biphenyl (C 12 H 10 ) and p -terphenyl (C 18 H 14 ), the K-intercalated structure, specific capacity, diffusion barrier, and electrical conductivity were analyzed.…”

Stretchable Electrodes of Extremely Conductive and Stable Enabled by SWCNTs-Coated Prestretched Wool Yarn

“…Flexible electronics have demonstrated great potential in a wide range of wearable devices over the past decade. − Electronic circuits have typically received little attention as a basic electronic component for transmitting electrical signals in wearable electronic devices. − Traditional metal electronic circuits are made of rigid metal with low gauge factors, small strain ranges, and unsatisfactory wearing experiences, thus greatly limiting their implementation in wearable devices. Therefore, researchers have attempted to develop flexible electronic circuits to solve this problem, and various strategies have been proposed for fabricating such circuits.…”