A5054477667- Conducting polymers and applications
- Transition Metal Oxide Nanomaterials
- Photonic Crystals and Applications
- Advanced Sensor and Energy Harvesting Materials
- Perovskite Materials and Applications
- Biological Activity of Diterpenoids and Biflavonoids
- Computational Drug Discovery Methods
- Natural product bioactivities and synthesis
- Liquid Crystal Research Advancements
- Civil and Geotechnical Engineering Research
- Luminescence and Fluorescent Materials
- Photochromic and Fluorescence Chemistry
- Advanced X-ray and CT Imaging
- Catalytic Cross-Coupling Reactions
- Polydiacetylene-based materials and applications
- Catalytic C–H Functionalization Methods
- Medical Imaging Techniques and Applications
- Advanced X-ray Imaging Techniques
- Synthesis and properties of polymers
- Advanced Memory and Neural Computing
- Synthesis and Reactions of Organic Compounds
- Phenothiazines and Benzothiazines Synthesis and Activities
- Liver Disease Diagnosis and Treatment
- Organic Light-Emitting Diodes Research
- Nanofabrication and Lithography Techniques
Shanghai Institute of Organic Chemistry
2021-2025
University of Chinese Academy of Sciences
2021-2025
Purdue University West Lafayette
2020-2024
Sinopec (China)
2022
Shanghai Jiao Tong University
2019-2021
University of California, San Diego
2020
Southwest Jiaotong University
2020
East China Normal University
2017-2019
Bristol-Myers Squibb (United States)
2018
Boston University
2012-2014
Abstract Efficient and large scale printing of photonic crystal patterns with multicolor, multigrayscale, fine resolution is highly desired due to its application in smart prints, sensors, devices. Here, an electric‐field‐assisted multicolor reported based on electrically responsive photocurable colloidal crystal, which prepared by supersaturation‐induced self‐assembly SiO 2 particles the mixture propylene carbonate (PC) trimethylolpropane ethoxylate triacrylate (ETPTA). This suspension,...
Transparent conductors (TCs) play a vital role in displays, solar cells, and emerging printed electronics. Here, we report solution-processable n-doped organic conductor from copper-catalyzed cascade reactions the air, which involves oxidative polymerization reductive doping one pot. The formed polymer ink is shelf-stable over 20 days can endure storage temperatures -20 to 65 °C. optimized thin-film TC exhibits low sheet resistance of 45 Ω/sq high transmittance (T550 > 80%), rival indium tin...
Constructing two-dimensional (2D) perovskite atop of 3D with energy landscape management is still a challenge in photovoltaics. Here, we report strategy through designing series π-conjugated organic cations to construct stable 2D perovskites and realize delicate level tunability at 2D/3D heterojunctions. As result, the hole transfer barriers can be reduced both heterojunctions within structures, preferable work function shift reduces charge accumulation interface. Leveraging these insights...
Invisible photonic crystal (PC) pattern with encrypted and discoverable information is potentially useful for anti-counterfeiting labels, but it still a big challenge to realize strict invisibility, fast response, convenient triggering. Here, new kind of soaking-revealed invisible PC fabricated by the regional coating "ethylene glycol-ethanol" ink on collapsed inverse opaline macroporous polyurethane (IOM-PU) film, followed quick thermal treatment. During above process, wet heating retains...
Perovskite solar cells (PSCs) have delivered a power conversion efficiency (PCE) of more than 25% and incorporating polymers as hole-transporting layers (HTLs) can further enhance the stability devices toward goal commercialization. Among various polymeric materials, poly(triaryl amine) (PTAA) is one promising HTL candidates with good stability; however, hydrophobicity PTAA causes problematic interfacial contact perovskite, limiting device performance. Using molecular side-chain engineering,...
Abstract The repetitive size change of the electrode over cycles, termed as mechanical breathing, is a crucial issue limiting quality and lifetime organic electrochromic devices. deformation originates from electron transport ion intercalation in redox active material. dynamics state charge induces drastic changes microstructure properties host, ultimately leads to structural disintegration at interfaces. We quantify breathing strain evolution poly(3,4-propylenedioxythiophene) thin films...
Camouflage is often seen in animals, and it presents both passive active forms. For instance, the wings of Closterocerus coffeellae exhibit distinct appearances against different backgrounds, while chameleon actively changes its skin colors to morph into environment. Herein, we report an artificial skin-like optoelectronic device that enables changing passively morphing environment by manipulating light-matter interactions with electrochromic polymers photonic colloid nanocrystals. To...
Abstract Owing to low‐power, fast and highly adaptive operability, as well scalability, electrochemical random‐access memory (ECRAM) technology is one of the most promising approaches for neuromorphic computing based on artificial neural networks. Despite recent advances, practical implementation ECRAMs remains challenging due several limitations including high write noise, asymmetric weight updates, insufficient dynamic ranges. Here, inspired by similarities in structural functional...
Using palmitic acid (PA) as an organic phase change material (PCM), a series of PA/diatomite composite PCMs (CPCMs) composed PA absorbed into diatomite mesopores with different mass contents were made through direct impregnation method. Nitrogen adsorption-desorption curves indicated the porous structure specific surface area and mesopore peak at 40 m2/g 3 to 5 nm, respectively. The form-stability measurement that maximum loading capacity was 55 wt%. melting temperature fusion enthalpy CPCM...
Conjugated electrochromic polymers hold great promises for next-generation color-changing windows and displays. One of the major roadblocks in their solid-state devices is relatively poor cycling stability. Finding ion-storage materials as a charge-balancing component critical improving electrochemical A key criterion selection to match electroactive voltage with paired polymers. Thus, we developed nanostructured, amorphous vanadium oxide (VOx) material that exhibits high transmissivity,...
Catalytic semireduction of internal alkynes to alkenes is very important for organic synthesis. Although great success has been achieved in this area, switchable Z/E stereoselectivity based on a single catalyst the longstanding challenge due multi-chemo- and stereoselectivity, especially less-expensive earth-abundant metals. Herein, we describe (Z)- or (E)-alkenes catalyzed by dinuclear cobalt complex supported macrocyclic bis pyridyl diimine (PDI) ligand. It was found that cis-reduction...
Mono-metallic catalysts dominate in homogeneous catalysis, wherein all the element steps generally occur on one metal site. Inspired from bimetallic active sites both enzymes and heterogeneous catalysts, development of binuclear catalysis can offer potential to induce novel intermediates, reactivity, selectivity. Metal-catalyzed hydroarylation alkynes leads alkyne incorporated products dimerization-hydrocarbofunctionalization is rather challenging via conventional mono-metallic...
In printable electrochromic polymer (ECP) displays, a wide color gamut, precise patterning, and controllable switching are important. However, it is significant challenge to achieve such features synergistically. Here, we present solution-processable ECP stacking scheme, where crosslinker co-processed with three primary ECPs (ECP-Cyan, ECP-Magenta, ECP-Yellow), which endows the solvent-resistant properties allows them be sequentially deposited. Via varying film thickness of each layer,...
The interaction between light and chiroptical polymers plays a crucial role in chiroptics, spintronics, chiral-spin selectivity. Despite considerable successes creating dissymmetric polymer films, the elucidation of activities under electrochemical switching remains unexplored. Here homogeneous chiral electrochromics is reported using assembly conjugated through transient solidification process with molecular templates. In their neutral state, electrochromic directly produce remarkably...
ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication the EditorNEXTSynthesis of Homo- and Copoly(arylene bicarbazole)s via Nucleophilic Substitution Polycondensation Reactions NH Groups with Activated DihalidesYan Gao, Antisar Hlil, Jinyan Wang, Ke Chen, Allan S. HayView Author Information Department Chemistry, McGill University, Montreal, Quebec H3A2K6, Canada, Polymer Science & Materials, Dalian University Technology, 116012, P. R. China Cite this: Macromolecules 2007, 40,...
Organic mixed ionic–electronic conductors (OMIECs) are an emerging family of materials crucial in the development flexible, bio-, and optoelectronics. In electrochromic polymers, cyclic redox reaction is associated with a mechanical breathing strain, which deforms OMIECs degrades device reliability. We set forth situ nanoindentation approach to measure strain poly(3,4-propylenedioxythiophene) (PProDOT) thin film customized liquid cell during cycles. A volumetric 12–25% persistent different...
Abstract Nitrogen adsorption–desorption for mesopore characterization requires the using of expensive instrumentation, time‐consuming processes, and consumption liquid nitrogen. Herein, a new method is developed to measure pore parameters through mixing mesoporous substance with supersaturated SiO 2 colloidal solution at different temperatures, subsequent rapid measurement reflection changes precipitated photonic crystals. The volumes diameters silica were measured according positive...
The structure and stereochemistry of pseudolarolide E, a novel triterpene dilactone isolated from the seeds Pseudolarix kaempferi, have been established spectral data single-crystal X-ray analysis.
S. Zhang, C. T. Lee, K. Chen, Y. Kashiwada, D. A. McPhail and J. Chem. Soc., Commun., 1994, 1561 DOI: 10.1039/C39940001561
Novel polysubstituted 5,6-dihydro-4H-1,3-oxazines are synthesized by 1,4-cycloaddition of unactivated olefins with N-acyliminiums from benzotriazole precursors. The configuration and conformation the products deduced NMR investigation. regio- exo–endo stereochemistry cycloaddition discussed. Conformations compounds six types substitution (6-mono; 6,6-, 5,6- 4,6-di; 4,6,6- 4,5,6-tri) rationalized on basis axial-1,3-repulsion anomeric effect.
Polyelectrolytes, a class of polymer with ionized functional groups in their repeating units, are widely used various applications. Many have been incorporated into polyelectrolytes, but aromatic anions rarely investigated. Here, we first successfully incorporate stable tetracyanocyclopentadienide (TCCp) anion polynorbornene (PNb)-based electrolytes (PNb-TCCp) through ring-opening metathesis polymerization (ROMP) controllable molecular weight and low polydispersity. PNb-TCCp shows high ionic...