A5075883275- Molecular Junctions and Nanostructures
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Quantum and electron transport phenomena
- Organic Light-Emitting Diodes Research
- Surface Chemistry and Catalysis
- Electrocatalysts for Energy Conversion
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Advanced Thermoelectric Materials and Devices
- Surface and Thin Film Phenomena
- Graphene research and applications
- CO2 Reduction Techniques and Catalysts
Beijing National Laboratory for Molecular Sciences
2021-2023
Chinese Academy of Sciences
2021-2023
University of Chinese Academy of Sciences
2021-2023
Institute of Chemistry
2021-2023
Abstract Electrophilic aromatic substitution (EAS) is one of the most fundamental reactions in organic chemistry. Using an oriented external electric field (OEEF) instead traditional reagents to tune EAS reactivity can offer environmentally friendly method synthesize compounds and hold promise broadening its scope. Despite these advantages, OEEF catalysis difficult realize, due challenge microscopically orienting along direction electron reorganizations. In this work, we demonstrate...
The development of blue-emissive ambipolar organic semiconductor is an arduous target due to the large energy gap, but indispensable part for electroluminescent device, especially transformative display technology simple-structured light-emitting transistor (SS-OLET). Herein, we designed and synthesized two new dibenzothiophene sulfone-based high mobility semiconductors (DNaDBSOs), which demonstrate superior optical property with solid-state photoluminescent quantum yield 46-67 % typical...
Conjugated macrocycles cycloparaphenylenes (CPPs) have unusual size-dependent electronic properties because of their unique radially π-conjugated structures. Contrary to linearly molecules, highest occupied molecular orbital (HOMO)–lowest unoccupied (LUMO) gap shrinks as the size reduces, and this feature can, in principle, be leveraged achieve unexpected transport properties. Here, we examine charge characteristics [n]CPPs (n = 5 12) at single molecule level using scanning tunneling...
Carbon nanobelts (CNBs) are a new form of nanocarbon that has promising applications in optoelectronics due to their unique belt-shaped π-conjugated systems. Recent synthetic breakthrough led the access various CNBs, but optoelectronic properties have not been explored yet. In this work, we study electronic transport performance series CNBs by incorporating them into molecular devices using scanning tunneling microscope break junction technique. We show that, tuning bridging groups between...
The interface between molecules and electrodes has great impact on charge transport of molecular devices. Precisely manipulating the structure electronic coupling electrode-molecule at a level is very challenging. Here, we develop new junctions based tetrathiafulvalene (TTF)-fused naphthalene diimide (NDI) which are anchored to gold through direct TTF-Au contacts formed via Au-S bonding. These enable highly efficient orbital hybridization conducting π-channels, yielding strong remarkably...
The interaction between organic radicals and transition metals plays a crucial role in radical-mediated chemical reactions, functional devices, biocatalysis. Characterizing such interactions, however, remains long-standing challenge due to the inherently high reactivity of radical species. Here, using scanning tunneling microscope breaking junction (STM-BJ) technique, we are able detect mode iminyl gold surface at single molecule level. We show that free generated through photochemical N-O...
Integrating simple molecular units into organometallic architectures has attracted significant research interest due to its wide applications in functional materials and devices. Despite recent progresses, it remains challenging manipulate metal-molecule coordination with single molecule precision. Here, we create junctions via terminal alkynes measure their conductance situ at the level using scanning tunneling microscope-break junction (STM-BJ) technique. The strong Ag–C σ bonding between...
Abstract The development of blue‐emissive ambipolar organic semiconductor is an arduous target due to the large energy gap, but indispensable part for electroluminescent device, especially transformative display technology simple‐structured light‐emitting transistor (SS‐OLET). Herein, we designed and synthesized two new dibenzothiophene sulfone‐based high mobility semiconductors (DNaDBSOs), which demonstrate superior optical property with solid‐state photoluminescent quantum yield 46–67 %...