A5043641380- Photochromic and Fluorescence Chemistry
- Luminescence and Fluorescent Materials
- Molecular Sensors and Ion Detection
- Photoreceptor and optogenetics research
- Molecular Junctions and Nanostructures
- Porphyrin and Phthalocyanine Chemistry
- Advanced Photocatalysis Techniques
- Pharmaceutical and Antibiotic Environmental Impacts
- Advanced oxidation water treatment
- Polydiacetylene-based materials and applications
- Surface Chemistry and Catalysis
- Organic Electronics and Photovoltaics
- Quantum and electron transport phenomena
- Graphene research and applications
- Supramolecular Self-Assembly in Materials
- Nanocluster Synthesis and Applications
- Organic Light-Emitting Diodes Research
- Advanced Polymer Synthesis and Characterization
- Conducting polymers and applications
- Electrochemical Analysis and Applications
- Force Microscopy Techniques and Applications
- Sulfur Compounds in Biology
- Photonic and Optical Devices
- Nanoplatforms for cancer theranostics
- Advanced biosensing and bioanalysis techniques
East China University of Science and Technology
2010-2025
Yichun University
2025
Shanghai University of Electric Power
2014-2022
Shanghai University
2021
Columbia University
2019-2020
Beijing University of Chemical Technology
2018
New unsymmetrical diarylethenes were synthesized and their photochromic fluorescent properties are tailored by Cu(2+) CN(-) coordinations. A novel molecular logic keypad lock is constructed based on the fluorescence emission changes inputs of UV/visible irradiation, CN(-).
Abstract Electric fields have been proposed as having a distinct ability to catalyze chemical reactions through the stabilization of polar or ionic intermediate transition states. Although field-assisted catalysis is being researched, in solution using electric remains elusive and understanding mechanisms such sparse. Here we show that an field can cis-to-trans isomerization [3]cumulene derivatives solution, scanning tunneling microscope. We further external alter thermodynamics inhibiting...
Understanding and tuning charge transport over a single molecule is fundamental topic in molecular electronics. Single-molecule junctions composed of individual molecules attached to two electrodes are the most common components built for single-molecule studies. During past decades, rapid technical theoretical advances have increased our understanding conductance properties functions devices. In this perspective article, we introduce basic principles junctions, then give an overview recent...
One-dimensional sp-hybridized carbon wires, including cumulenes and polyynes, can be regarded as finite versions of carbynes. They are likely to good candidates for molecular-scale conducting wires they predicted have a high-conductance. In this study, we first characterize the single-molecule conductance series polyynes with backbone ranging in length from 4 8 atoms, [7]cumulene, longest cumulenic wire studied date molecular electronics. We observe different dependence when comparing these...
Organic luminogens constitute promising prototypes for various optoelectronic applications. Since gaining distinct color emissions normally requires the alternation of conjugated backbone, big issues remain in material synthetic cost and skeleton compatibility while pursuing full-color luminescence. Upon a facile one-step coupling, three simple but smart perchalcogenated (O, S, Se) arenes are synthesized. They exhibit strong luminescent tricolor primaries (i.e., blue, green, red,...
Single-molecule conductance measurements for 9,14-diphenyl-9,14-dihydrodibenzo[a,c]phenazine (DPAC) may offer unique insight into the bent-to-planar photocycle between ground and excited states. Herein, we employ DPAC derivative DPAC-SMe as molecular prototype to fabricate single-molecule junctions using scanning tunneling microscope break junction technique explore photoconductance dependence on excited-state structural/electronic changes. We find up ∼200% enhancement of under continuous...
A novel organic–inorganic silica material (MCM-3T), prepared by covalent immobilization of the 2,1,3-benzothiadiazole-based chemodosimeter 3 and thiol group to mesoporous (MCM-48 type), was characterized several spectroscopic methods. The MCM-3T shows excellent optical properties with a detection limit ca. 8.0 × 10−6 M under optimized conditions exclusively distinguishes Hg2+ ion from other metal ions in aqueous solution. can detect large pH range 5.0 11.0, indicating its convenience for...
A controllable sensing ability strongly connects to complex and precise events in diagnosis treatment. However, imposing visible light into the molecular-scale mediation of processes is restricted by lack structural relevance. To address this critical challenge, we present rational design, synthesis, vitro studies a novel cyanostyryl-modified azulene system for green-light-mediated fast switchable acidic sensing. The advantageous features design include highly efficient green-light-driven...
The single-molecule conductance of silanes is suppressed due to destructive quantum interference in conformations with cisoid dihedral angles along the molecular backbone. Yet, despite structural similarity, σ-interference effects have not been observed alkanes. Here we report that methyl substituents used are a prerequisite for these systems. Through density functional theory calculations, find evident same extent nonmethylated silanes. We true alkanes as transmission significantly...
The scanning tunneling microscope-based break junction (STM-BJ) is used widely to create and characterize single metal-molecule-metal junctions. In this technique, conductance continuously recorded as a metal point contact broken in solution of molecules. Conductance plateaus are seen when stable molecular junctions formed. Typically, thousands created measured, yielding distinct versus extension traces. However, such traces rarely analyzed individually recognize the types Here, we present...
Abstract Long-standing radical species have raised noteworthy concerns in organic functional chemistry and materials. However, there remains a substantial challenge to produce long-standing radicals by light, because of the structural dilemmas between photoproduction stabilization. Herein, we present pyrrole chloride assisted photochromic structure address this issue. In well-selected system, production stabilization were simultaneously found accompanied photochemical process chloroform....
Abstract It is crucial and desirable to develop green high-efficient strategies regulate solid-state structures their related material properties. However, relative solution, it more difficult break generate chemical bonds in solid states. In this work, a rubbing-induced photoluminescence on the states of ortho-pyridinil phenol family was achieved. This rubbing response relied an accurately designed topochemical tautomerism, where negative charge, exactly provided by triboelectric effect...
A Cu<sup>2+</sup>-gated photochromic behavior of a star-shaped diarylethene derivative and its plausible mechanism are discussed.
Controllable aggregation-induced emission luminogens (AIEgens) by photoexcitation can be conducted within a single solvent, thus opening new opportunities for preparing and processing smart materials. However, undesired side-reactions like photooxidation that easily occur in the organic phase remain, limiting their applications. To enhance operability of photoexcitation-controlled AIEgens (to specifically produce phosphorescence characteristic) phase, this work, we employ typical prototype,...
Piezoelectric devices enable efficient interconversion between mechanical and electrical energy, playing a critical role in diverse technologies. Extending piezoelectricity to the single-molecule level offers unprecedented sub-Ångström control over energy conversion, yet remains significant challenge. Here, we present strategy employing flapping dibenzo[a,e][8]annulene molecules achieve precise continuous modulation of molecular conformation, thereby controlling intramolecular charge...
Single-molecule photoconductors capable of optically modulating molecular conductance hold great promise for optoelectronics, yet challenges persist in bidirectional photoconductance at the single-molecule level. Here, we present a rational design strategy high-performance exhibiting either increased or decreased photoconductance, enabled by synergistic interplay between excited-state intramolecular proton transfer (ESIPT) and quantum interference (QI) effects. Utilizing scanning tunneling...
Chirality, a fundamental attribute of nature, significantly influences wide range phenomena related to physical properties, chemical reactions, biological pharmacology, and so on. As pivotal aspect chirality research, recognition contributes the synthesis complex chiral products from simple compounds exhibits intricate interplay between materials. However, macroscopic detection technologies cannot unveil dynamic process intrinsic mechanisms single-molecule recognition. Herein, we present...