Interface Phenomena in Molecular Junctions through Noncovalent Interactions

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 26, 2025

Noncovalent interactions, both between molecules and at the molecule–electrode interfaces, play essential roles in enabling dynamic reversible molecular behaviors, including self-assembly, recognition, various functional properties. In macroscopic ensemble systems, these interfacial phenomena often exhibit emergent properties that arise from synergistic interplay of multiple noncovalent interactions. However, single-molecule scale, precisely distinguishing, characterizing, controlling individual interactions remains a significant challenge. Molecular electronics offers unique platform for constructing characterizing intermolecular interfaces governed by isolated study fundamental Furthermore, precise control over through facilitates development enhanced devices. This review examines characterization arising electrical measurements explores their applications We begin discussing construction stable junctions followed an analysis electron tunneling mechanisms mediated key modulation methods. then investigate how enhance device sensitivity, stability, functionality, establishing design principles next-generation electronics. have also explored potential bottom-up self-assembled The concludes addressing opportunities challenges scaling up

Language: Английский

Morphology-Controlled Long-Range Photogenerated Charge Carrier Transfer Pathway for Enhanced Photocatalytic Hydrogen Production

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: March 6, 2025

Achieving precise control over the construction of efficient charge transport channels through self-assembly engineering represents a highly effective strategy for synthesis organic supramolecular photocatalysts. Herein, tetragonal zinc meso-5,10,15,20-tetra(4-pyridyl) porphyrin (ZnTPyP) nanorods (T-ZnTPyPs) and hexagonal ZnTPyP nanowires (H-ZnTPyPs) were synthesized by varying assembly temperature. H-ZnTPyPs demonstrated photocatalytic hydrogen production rate (183 mmol/g/h) that was 14.62 times greater than T-ZnTPyP (13 mmol/g/h). This significantly enhanced activity is primarily attributed to distinct well-defined molecular arrangements H-ZnTPyPs, which support continuous linear long-range electron transfer pathways π-π stacking. Conversely, heat manipulation used in T-ZnTPyPs limits participation water molecules crystalline stacking arrangements, leading lattice distortions disrupt interactions impede pathways. research presents novel modulating optimize

Language: Английский

π–π stacked supramolecular dimers in molecular electronics

Trends in Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 1, 2025