A5101670143- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Organic Light-Emitting Diodes Research
- Luminescence and Fluorescent Materials
- Photonic and Optical Devices
- Optical Network Technologies
- Molecular Junctions and Nanostructures
- Advanced Photonic Communication Systems
- Porphyrin and Phthalocyanine Chemistry
- Ionic liquids properties and applications
- Perovskite Materials and Applications
- Molecular Sensors and Ion Detection
- Chemical Synthesis and Reactions
- Synthetic Organic Chemistry Methods
- Advanced Chemical Sensor Technologies
- Supramolecular Chemistry and Complexes
- Organic and Molecular Conductors Research
- Electrochemical Analysis and Applications
- Chemical Reaction Mechanisms
- Innovative Microfluidic and Catalytic Techniques Innovation
- Synthesis and Characterization of Pyrroles
- Liver Disease Diagnosis and Treatment
- Synthesis and Properties of Aromatic Compounds
Chongqing Normal University
2023
Peking University
2018-2019
Henan Normal University
2017-2019
Green Chemistry
2017-2018
WuXi AppTec (China)
2014-2017
Beijing Normal University
2013-2015
Hunan University of Technology
2015
Beijing National Laboratory for Molecular Sciences
2007-2011
Chinese Academy of Sciences
2007-2010
Institute of Chemistry
2007-2010
Abstract Oligoarenes as an alternative group of promising semiconductors in organic optoelectronics have attracted much attention. However, high‐performance and low‐cost opto‐electrical devices based on linear asymmetric oligoarenes with nano/microstructures are still rarely studied because difficulties both synthesis high‐quality nano/microstructure growth. Here, a novel oligoarene 6‐methyl‐anthra[2,3‐ b ]benzo[ d ]thiophene (Me‐ABT) is synthesized its microribbons grown by solution...
Blue light: Incorporation of two fluorenyl rings into a phenyl group at the C9 position fluorene builds bulky and rigidly tetrahedral framework, which is functionalized by carbazole groups. This molecule possesses excellent thermal morphological stability, miscibility to phosphorescent dopant, high triplet energy, leading narrow blue emission. Since Forrest's advanced dye improve light-emission efficiencies,1 organic light-emitting diodes (OLEDs) have made dramatic progress. Because...
N,N'-Bis(n-octyl)-2,3,6,7-tetrabromonaphthalene diimide (TBNDI) was synthesized by a new imidization reaction and characterized HRMS, (1)H NMR, (13)C elemental analyses, FT-IR, UV-vis, single-crystal X-ray analysis. The TBNDIs are the key precursors for synthesis of core-tetrasubstituted-naphthalene diimides.
Two novel wide-energy-gap molecules, 1,3-bis(9-phenyl-9H-fluoren-9-yl)benzene (mDPFB) and 1,4-bis(9-phenyl-9H-fluoren-9-yl)benzene (pDPFB), suitable for blue phosphorescent host materials, were designed prepared. The thermal, photophysical, electrochemical properties as well electroluminescence characteristics fully investigated. Both mDPFB pDPFB possess high singlet (4.0 eV) triplet (2.8 energies, energy-matched with the deep-blue dopant, iridium(III)...
Abstract The synthesis, characterization, and field‐effect transistor (FET) properties of a new class thieno[3,2‐b]thieno[2′,3′:4,5]thieno[2,3‐d]thiophene derivatives are described. optical spectra their films show the presence stronger interactions between molecules in solid state. Thermal analyses reveal that three materials thermally stable have no phase transitions at low temperature. crystal structures determined, π‐stacked intermolecular S···S contacts. These organic exhibit p‐type FET...
An asymmetric heteroacene compound anthra[2,3-b]benzo[d]thiophene has been facilely synthesized. FETs fabricated with the exhibit a mobility as high 0.41 cm2 V−1 s−1 at room temperature. High and good stability suggest that exploration of organic semiconductors would be extremely promising for application in electronics.
A series of fused thiophenes composed alpha-oligothiophene units as building blocks, end-capped with either styrene or 1-pentyl-4-vinylbenzene groups, has been synthesized through Stille coupling reactions. The compounds have fully characterized by means (1)H NMR spectrometry, high-resolution mass and elemental analysis. molecules present a trans-trans configuration between their double bonds, which verified confirmed Fourier-transform infrared spectroscopy single-crystal X-ray diffraction...
Betainium lactate was found to be an efficient catalyst for the Hantzsch reactions under mild conditions.
Weakly-coupled mode division multiplexing (MDM) has been intensively investigated in recent years. In order to be compatible with conventional intensity modulation and direct detection systems, effective solutions handle degenerate non-circularly-symmetric linearly-polarized (LP) modes ( <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\text{LP}_{lm{\rm{a}}}$</tex-math></inline-formula>...
A novel type of anti and syn isomers a pentacyclic compound consisting two thiophene rings one pyrrole ring were efficiently synthesized from benzo[b]thiophene, the isomer exhibits better charge transport OFET properties compared with its N-hexyl substitution.
The authors reported organic phototransistors (PTs) with octadecyltrichlorosilane treated SiO2/Si substrate based on anthra[2,3-b]benzo[d]thiophene. PTs show a high mobility of 0.4 cm2 V−1 s−1, maximum photoresponsivity about 1000 A/W, and photocurrent/dark-current ratio around 800 under white light irradiation 30 μW/cm2. data are comparable those amorphous silicon. Meanwhile, it is interesting to see that the devices air-stable property photosensitivity via electric-field enhanced process....
A new series of highly fluorescent blue-emitting materials based on fluorene and anthracene hybrids are designed synthesized for organic light-emitting diodes (OLEDs). These feature a phenyl-substituted dimer as bulky rigid core functional active group. The novel use building skeleton to design molecules is reported the first time. thermal, photophysical, electrochemical, electroluminescent (EL) properties presented, well combined density study their geometry electronic structure. compounds...
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTNovel Functionalized Conjugated Polythiophene with Oxetane Substituents: Synthesis, Optical, Electrochemical, and Field-Effect PropertiesKun Lu†‡, Yunlong Guo†‡, Yunqi Liu*†, Chong-an Di†, Tao Li†‡, Zhongming Wei†‡, Gui Yu†, Chunyan Du†‡, Shanghui Ye†‡View Author Information Beijing National Laboratory for Molecular Sciences, Key of Organic Solids, Institute Chemistry, Chinese Academy 100190, China, Graduate...
A new series of ladder-type heteroacenes containing both pyrrole and furan rings, 5,6-disubstituted diindolo[3,2-b:4,5-b']thiophenes (DITs), were effectively synthesized from N-functionalized 3,3'-dibromo-2,2'-biindoles undergoing intramolecular cyclization with bis(phenylsulfonyl) sulfide organolithium. Single-crystal X-ray results demonstrate that 5,6-dipropyldiindolo[3,2-b:4,5-b']thiophene (4b) forms a herringbone-type packing motif 5,6-di(p-tolyl)diindolo[3,2-b:4,5-b']thiophene (4d)...
A series of semiconducting copolymers incorporating dithieno[3,2-b:2′,3′-d]thiophene moieties in the polythiophene backbone were synthesized. The resulting four are found to have large band gap (∼ 2.5 eV) and ionization potential (−5.1 eV). Organic field-effect transistors fabricated by spin-coating polymer solutions onto OTS-modified SiO2/Si substrates with top-contact configuration. best hole mobility afforded was 0.028 cm2V−1 s−1 an on/off ratio 2 × 104 a threshold voltage about −18.9 V...
Dicyanovinyl-substituted compounds as electron transport materials are rarely studied, especially oligomers. A new series of fluorene or carbazole-based and dicyanovinyl-capped oligomers consisting benzene thiophene segments were synthesized using the Stille coupling reaction their physical properties investigated. Optical spectra show that introduction electron-accepting groups induces an intramolecular charge transfer, resulting in a shift absorption onset toward longer wavelengths....
Abstract A new series of full hydrocarbons, namely 4,4′‐(9,9′‐(1,3‐phenylene)bis(9 H ‐fluorene‐9,9‐diyl))bis( N , ‐diphenylaniline) (DTPAFB), ′‐(4,4′‐(9,9′‐(1,3‐phenylene)bis(9 ‐fluorene‐9,9‐diyl))bis(4,1‐phenylene))bis( ‐phenylnaphthalen‐1‐amine) (DNPAFB), 1,3‐bis(9‐(4‐(9 ‐carbazol‐9‐yl)phenyl)‐9 ‐fluoren‐9‐yl)benzene, and 1,3‐bis(9‐(4‐(3,6‐di‐ tert ‐butyl‐9 featuring a highly twisted tetrahedral conformation, are designed synthesized. Organic light‐emitting diodes (OLEDs) comprising DNPAFB...
A fused-seven-ring anthracene derivative with two sulfur bridges, benzobisthioxanthene (BTA), was synthesized, facilely. OLEDs employing BTA as the emitter exhibited bright (maximum 40,752 cd m(-2)) and efficient red emission (CIE, x = 0.64, y 0.36) a luminous efficiency of 4.4 A(-1).
Farnesoid X receptor (FXR) has become a particularly attractive target for the discovery of drugs treatment liver and metabolic diseases. Obeticholic acid (INT-747), FXR agonist, advanced into clinical phase III trials in patients with nonalcoholic steatohepatitis (NASH), but adverse effects (e.g., pruritus, LDL increase) were observed. Pruritus might be induced by Takeda G-protein-coupled 5 (TGR5, GPBAR1), there are chances to develop agonists higher selectivity over TGR5. In this letter,...
A series of novel asymmetrical fused compounds containing the backbone fluorene[2,3-b]benzo[d]thiophene (FBT) were effectively synthesized and fully characterized. Single-crystal X-ray studies demonstrated that length substituent side chains greatly affects solid-state packing obtained compounds. DFT, photophysical, electrochemical all showed FBTs have large band gaps, low-lying HOMO energy levels, therefore good stability toward oxidation. Moreover, substituents strongly influence...
Two asymmetrically substituted dicyanovinyl heterotetracenes are synthesized and characterized. Single-crystal X-ray diffractions indicate both intermolecular hydrogen bonds pi-stacking existing in the solid-state structures. The solvatochromic behaviors of two were investigated a variety solvents. Both experimental computational results suggest that have low-lying lowest unoccupied molecular orbitals thus may be potential n-type or bipolar organic semiconductors for electronics.
Direct reduction of Pb(2+) in self-assembled G-quadruplex on the gold electrode was first observed, which applied constructing a series simple and reversible logic gates, such as one-input, two-input three-input gates. Importantly, largest scale reversibility among gates achieved based reciprocal transformations DNA.
Enterovirus 71 (EV71) is a major causative agent of hand, foot, and mouth disease (HFMD), which can spread its infections to the central nervous other systems with severe consequences. The viral caspid protein VP1 well-known target for antiviral efficacy because occupancy by suitable compounds could stabilize virus capsid, thus preventing uncoating RNA release. In this Letter, design, synthesis, biological evaluation novel anti-EV71 agents (aminopyridyl 1,2,5-thiadiazolidine 1,1-dioxides)...