A5060962707- Organic Electronics and Photovoltaics
- Luminescence and Fluorescent Materials
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Organic Light-Emitting Diodes Research
- Conducting polymers and applications
- Synthesis and Properties of Aromatic Compounds
- Crystallography and molecular interactions
- Perovskite Materials and Applications
- Catalytic C–H Functionalization Methods
- Advanced Battery Materials and Technologies
- Radical Photochemical Reactions
- Molecular Sensors and Ion Detection
- Chemical Synthesis and Reactions
- Molecular Junctions and Nanostructures
- Asymmetric Synthesis and Catalysis
- Chemical Reaction Mechanisms
- Advancements in Battery Materials
- Porphyrin and Phthalocyanine Chemistry
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Catalytic Cross-Coupling Reactions
- Organic and Molecular Conductors Research
- Oxidative Organic Chemistry Reactions
- Coordination Chemistry and Organometallics
Shaanxi Normal University
2017-2024
Tianjin University of Science and Technology
2016-2019
State Key Laboratory of Heavy Oil
2018-2019
China University of Petroleum, Beijing
2018-2019
China XD Group (China)
2017-2018
China International Science and Technology Cooperation
2016-2018
Shanxi Normal University
2015-2018
Saga University
2007-2016
RIKEN Center for Emergent Matter Science
2013-2015
Yamagata University
2011-2013
Deep‐blue fluorescent compounds are particularly important in organic light‐emitting devices (OLEDs). A donor–accepotor (DA)‐type blue‐emitting compound, 1‐(10‐(4‐methoxyphenyl)anthracen‐9‐yl)‐4‐(10‐(4‐cyanophenyl)anthracen‐9‐yl)benzene ( BD3 ), is synthesized, and for comparison, a nonDA‐type 1,4‐bis(10‐phenylanthracene‐9‐yl)benzene BD1 ) weak DA‐type 1‐(10‐phenylanthracen‐9‐yl)‐4‐(10‐(4‐cyanophenyl)anthracen‐9‐yl)‐benzene BD2 also synthesized. The twisted conformations of the two...
This article is written to provide an up-to-date review of porphyrin-based materials used in organic solar cells (OSCs).
Abstract A new series of pyrene‐based, pure‐blue, fluorescent, stable monomers, namely 2,7‐di‐ tert ‐butyl‐4,5,9,10‐tetrakis( p ‐R‐phenylethynyl)pyrenes, have been successfully synthesised by Pd/Cu‐catalysed Sonogashira coupling in excellent yield. The cruciform‐shaped, π‐conjugated structures were fully characterised 1 H/ 13 C NMR and IR spectroscopy, mass spectrometry elemental analysis. As revealed from single‐crystal X‐ray analysis, there is a herringbone pattern between stacked columns,...
A pyrene-containing single-molecule excimer-emitting compound, 1,8-bis(pyren-2-yl)naphthalene (BPyN), was synthesized. With BPyN as a host emitter, C545T-based green OLEDs were fabricated, exhibiting high efficiencies of 22 lm W−1, cd A−1 and 6.2% external quantum efficiency (EQE) at 100 m−2, 19 EQE 1000 m−2.
Two efficient blue-light-emitting compounds, 1,8-bis(4-(N-carbazolyl)phenyl)naphthalene (BCzPN) and 1,8-bis(4-(10-phenylanthracen-9-yl)-phenyl)naphthalene (BPAPN), are designed synthesized, in which two phenylcarbazole or diphenylanthracene units closely stacked through bonding to the 1- 8-positions of naphthalene ring, resulting strong intramolecular excimer emissions solution as a film. By utilizing BPAPN an emitter, high efficiencies 6 cd A−1 5.8% external quantum efficiency (EQE) at 100...
The first example of aryl-functionalized, butterfly-shaped, highly fluorescent and stable blue-emitting monomers, namely, 7-tert-butyl-1,3,5,9-tetrakis(p-R-phenyl)pyrenes, were synthesized by the Suzuki–Miyaura cross-coupling reaction from a novel bromide precursor 1,3,5,9-tetrabromo-7-tert-butylpyrene. crystal structures optical electronic properties have been investigated.
Development of energy storage materials with high density to fulfill the demand next generation batteries is a blistering topic under immense debate. The Li–O2 battery attracting much more attention for its enhanced theoretical compared traditional Li-ion battery. Porous oxygen-breathing catalysts, especially biomass-derived materials, could offer plenty oxygen diffusion paths and Li2O2 formation space, which beneficial In this work, simple method used prepare phosphorus doped...
Main observation and conclusion Three new deep blue light emitters, bearing quinoxaline with different substituents (biphenyl/pyrene) at the 1‐ or 2‐position, were synthesized by a Pd‐catalysed coupling reaction in high yields, fully characterized 1 H/ 13 C NMR spectroscopy, single crystal X‐ray diffraction, high‐resolution mass spectrometry (HRMS). The designed molecules exhibit good thermal stability ( T g > 452 o C). Single diffraction indicated compounds containing pyrene units...
A series of pyrene-based Y-shaped blue emitters, namely, 7-tert-butyl-1,3-diarylpyrenes 4 were synthesized by the Suzuki cross-coupling reaction 7-tert-butyl-1,3-dibromopyrene with a variety p-substituted phenylboronic acids in good to excellent yields. These compounds fully characterized X-ray crystallography, UV/Vis absorption and fluorescence spectroscopy, DFT calculations, thermogravimetric analysis, differential scanning calorimetry. Single-crystal analysis revealed that arylpyrenes...
An efficient synthetic approach for functionalization of both the active sites (1,3-) and K-region (4,5,9,10-) pyrene was accomplished by bromination oxidation with considerable yield. These novel pyrene-fused azaacenes were thoroughly investigated X-ray diffraction studies, electrochemistry, DFT calculations.
By employing triphenylamine (TPA) and/or carbazole as donor and cyano group acceptor, three donor-π-acceptor (D-π-A)-type fluorophores, 4,6-di(4-(diphenylamino)phenyl)isophthalonitrile (DTPAIPN), 4-(4-(diphenylamino)phenyl)-6-(3,5-(9,9'-dicarbazolyl)phenyl)isophthalonitrile (TPAmCPIPN), 4,6-di(3,5-(9,9'-dicarbazolyl)phenyl)isophthalonitrile (DmCPIPN), were designed, synthesized, characterized for their thermal, photophysical, electrochemical, electroluminescent properties. All compounds...
Highly efficient phosphorescent and thermally activated delayed fluorescence organic light-emitting diodes have been realized by employing a universal host material.
This article presents a novel asymmetrical functionalization strategy for the construction of dipolar molecules via efficient regioselective along Z-axis pyrene at both 1,3- and 6,8-positions. Three asymmetrically substituted 1,3-diphenyl-6,8-R-disubsituted pyrenes were fully characterized by X-ray crystallography, photophysical properties, electrochemistry, density functional theory calculations.
Solution coating of organohalide lead perovskites offers great potential for achieving low‐cost manufacturing large‐area flexible optoelectronics. However, the rapid speed needed industrial‐scale production poses challenges to control crystal packing. Herein, this study reports using solution shearing confine nucleation and growth in printed MAPbI 3 thin films. Near single‐crystalline perovskite microarrays are demonstrated with a high degree controlled macroscopic alignment orientation,...
A one-pot protocol for the dearomative double nucleophilic addition to pyridines and quinolines, providing convenient, regioselective diastereoselective access tetrahydropyridines tetrahydroquinolines under reductant-free conditions is described. This method also offers a new strategy general dearomatization of nitrogen heteroaromatics.
Solid polymer electrolytes can be used to construct solid-state lithium batteries (SSLBs) using metals as the anode. However, lifespan and safety problems of SSLBs caused by dendrite growth have hindered their practical application. Here, we designed prepared a rigid-flexible asymmetric solid electrolyte (ASE) that is in building SSLBs. The ASE inhibit efficiently dendrites lead long cycle life due hierarchical structure combination "polymer-in-ceramic" (i.e., rigid ceramic layer...
Orange and red thermally activated delayed fluorescence emitters have been developed for high performance vacuum-deposited solution-processable organic light-emitting diodes.
Using 1,3,5,9-tetrabromo-7-tert-butylpyrene as the bromide precursor, a series of novel butterfly-shaped 1,3,5,9-tetraaryl substituted pyrene derivatives were synthesized by Suzuki-Miyaura cross-coupling reaction. Their thermal, photophysical, electrochemical and related properties systematically investigated. All compounds found to exhibit high thermal stabilities with decomposition temperatures (Td) up 300 °C. show highly blue fluorescence emissions in spectral region 412-469 nm solution...
8-Azacoumarins have emerged as a promising class of compounds but are rarely explored due to challenging access. A novel, general, and practical method is provided for this compounds. The key lactonization step employs trans-acrylic acid attached pyridine N-oxides the starting material, with acetic anhydride both activation agent solvent. Multiple transformations were involved in reaction, including conjugate addition, nucleophilic aromatic substitution, elimination. These studies provide...