Journal Article10.1021/jacs.2c05909
Quantum Interference-Controlled Conductance Enhancement in Stacked Graphene-like Dimers.
Peihui Li,Songjun Hou,Bader A. Alharbi,Qingqing Wu,Yijian Chen,Li Zhou,Tengyang Gao,Ruihao Li,Lan Yang,Xinyue Chang,Gang Dong,Xunshan Liu,Silvio Decurtins,Shi-Xia Liu,Wenjing Hong,Colin J. Lambert,Chuancheng Jia,Xuefeng Guo +17 more
28
TL;DR: In this article , the authors showed that when two anthanthrene monomers are π-stacked to form a dimer in a scanning tunneling microscopic break junction, the conductance increases by as much as 25 in comparison with a monomer, which originates from a room-temperature quantum interference.
read more
Abstract: Stacking interactions are of significant importance in the fields of chemistry, biology, and material optoelectronics because they determine the efficiency of charge transfer between molecules and their quantum states. Previous studies have proven that when two monomers are π-stacked in series to form a dimer, the electrical conductance of the dimer is significantly lower than that of the monomer. Here, we present a strong opposite case that when two anthanthrene monomers are π-stacked to form a dimer in a scanning tunneling microscopic break junction, the conductance increases by as much as 25 in comparison with a monomer, which originates from a room-temperature quantum interference. Remarkably, both theory and experiment consistently reveal that this effect can be reversed by changing the connectivity of external electrodes to the monomer core. These results demonstrate that synthetic control of connectivity to molecular cores can be combined with stacking interactions between their π systems to modify and optimize charge transfer between molecules, opening up a wide variety of potential applications ranging from organic optoelectronics and photovoltaics to nanoelectronics and single-molecule electronics.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Non-covalent interactions (NCIs) in π-conjugated functional materials: advances and perspectives.
TL;DR: In this article , the implications of non-covalent interactions on the molecular packing, optical properties, and applications of functional π-conjugated materials are reviewed. But the authors focus on the effects of weak interactions on opto-electronic applications.
Characterizaion and Application of Supramolecular Junctions.
Xiaohui Li,Wenhui Ge,Shuhan Guo,Jie Bai,Wenjing Hong +4 more
TL;DR: In this paper , the authors provide an overview of the advances in the characterization technique for the investigation of intermolecular charge transport, and summarize the experimental investigation of several non-covalent interactions, including π-π stacking interactions, hydrogen bonding, host-guest interactions, and σ-σ interactions at the single-molecule level.
29
Robust Single-Supermolecule Switches Operating in Response to Two Different Noncovalent Interactions.
Ping Zhou,Yanjun Fu,Maolin Wang,Renhui Qiu,Yuwei Wang,J. Fraser Stoddart,Yuping Wang,Hongliang Chen +7 more
TL;DR: Researchers develop robust single-molecule switches that respond to two noncovalent interactions, enabling ON/OFF switching with high fidelity and reproducibility, and demonstrate potential for designing bistable mechanoresponsive devices for microelectromechanical systems applications.
21
Intermolecular and Electrode-Molecule Bonding in a Single Dimer Junction of Naphthalenethiol as Revealed by Surface-Enhanced Raman Scattering Combined with Transport Measurements.
TL;DR: In this article , surface-enhanced Raman scattering (SERS) synchronized with current-voltage (I-V) measurements is employed to characterize the junction structure, together with the transport properties, of a single dimer and monomer junction of naphthalenethiol, the former was formed by the intermolecular π-π interaction.
16
Supramolecular Transistors with Quantum Interference Effect.
Xiaohui Li,Yan Zheng,Yu Zhou,Zhiyu Zhu,Jiayi Wu,Wenhui Ge,Yuxuan Zhang,Yuqing Ye,Li Chuan Chen,Jia Shi,Junyang Liu,Jie Bai,Zitong Liu,Wenjing Hong +13 more
TL;DR: Researchers fabricated supramolecular transistors with quantum interference effects, demonstrating on/off ratios above 103, high gating efficiency, and low leakage current, and revealed the potential of supramolecular channels for molecular electronics through configuration control and density functional theory calculations.
16
References
The SIESTA method for ab initio order-N materials simulation
José M. Soler,Emilio Artacho,Julian D. Gale,Alberto García,Javier Junquera,Javier Junquera,Pablo Ordejón,Daniel Sánchez-Portal +7 more
TL;DR: In this paper, a selfconsistent density functional method using standard norm-conserving pseudopotentials and a flexible, numerical linear combination of atomic orbitals basis set, which includes multiple-zeta and polarization orbitals, was developed and implemented.
2D materials and van der Waals heterostructures
TL;DR: Two-dimensional heterostructures with extended range of functionalities yields a range of possible applications, and spectrum reconstruction in graphene interacting with hBN allowed several groups to study the Hofstadter butterfly effect and topological currents in such a system.
6.4K
Van der Waals integration before and beyond two-dimensional materials
TL;DR: The development, challenges and opportunities of van der Waals integration for flexible integration of diverse material systems beyond two dimensions are reviewed, and its potential for creating artificial heterostructures or superlattices beyond the reach of existing materials is discussed.
Observation of quantum interference in molecular charge transport
Constant M. Guedon,Hennie Valkenier,Troels Markussen,Kristian Ks Thygesen,Jan Jc Hummelen,Sense Sj van der Molen +5 more
TL;DR: The observation of destructive quantum interference in charge transport through two-terminal molecular junctions at room temperature is reported, and the degree of interference can be controlled by simple chemical modifications of the molecular wire.
Efficient index handling of multidimensional periodic boundary conditions
TL;DR: In this paper, an efficient method is described to handle mesh indexes in multidimensional problems like numerical integration of partial differential equations, lattice model simulations, and determination of atomic neighbor lists.
550