A5100362037- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Perovskite Materials and Applications
- Organic Light-Emitting Diodes Research
- Synthetic Organic Chemistry Methods
- Luminescence and Fluorescent Materials
- Carbohydrate Chemistry and Synthesis
- Chemical Synthesis and Analysis
- Marine Sponges and Natural Products
- Thin-Film Transistor Technologies
- Microbial Natural Products and Biosynthesis
- Advanced Sensor and Energy Harvesting Materials
- Organoboron and organosilicon chemistry
- Advanced Thermoelectric Materials and Devices
- X-ray Diffraction in Crystallography
- Synthesis and Properties of Aromatic Compounds
- Crystallization and Solubility Studies
- Analytical Chemistry and Sensors
- Chemical Synthesis and Reactions
- Synthesis and biological activity
- Nanoplatforms for cancer theranostics
- Nanowire Synthesis and Applications
- Molecular Junctions and Nanostructures
- Asymmetric Synthesis and Catalysis
- Quantum Dots Synthesis And Properties
University of Science and Technology of China
2005-2025
Chinese Academy of Sciences
2016-2025
State Key Laboratory of Polymer Physics and Chemistry
2016-2025
Changchun Institute of Applied Chemistry
2016-2025
Ingenierie des Materiaux polymeres
2025
Zhejiang University
2020-2024
Soochow University
2020-2024
Wuxi No.2 People's Hospital
2024
Wuhan University of Technology
2024
Northeast Normal University
2005-2024
A novel polymer acceptor based on the double B←N bridged bipyridine building block is reported. All-polymer solar cells new show a power conversion efficiency of as high 6.26% at photon energy loss only 0.51 eV.
Abstract A double B←N bridged bipyridyl (BNBP) is a novel electron‐deficient building block for polymer electron acceptors in all‐polymer solar cells. The bridging units endow BNBP with fixed planar configuration and low‐lying LUMO/HOMO energy levels. As result, the based on (P‐BNBP‐T) exhibits high mobility, levels, strong absorbance visible region, which desirable acceptors. Preliminary cell (all‐PSC) devices P‐BNBP‐T as acceptor PTB7 donor exhibit power conversion efficiency (PCE) of 3.38...
Abstract We demonstrate that polymer electron acceptors with excellent all‐polymer solar‐cell (all‐PSC) device performance can be developed from donors by using B←N units. By alleviating the steric hindrance effect of bulky pendant moieties on conjugated polymers contain units, π–π stacking distance backbones is decreased and mobility consequently enhanced nearly two orders magnitude. As a result, power conversion efficiency all‐PSCs acting as acceptor greatly improved 0.12 % to 5.04 %. This...
Abstract The key parameters of conjugated polymers are lowest unoccupied molecular orbital (LUMO) and highest occupied (HOMO) energy levels. Few approaches can simultaneously lower LUMO HOMO levels to a large extent (>0.5 eV). Disclosed herein is novel strategy decrease both by about 0.6 eV through replacement CC unit B←N unit. makes the resulting polymer transform from an electron donor into acceptor, proven fluorescence quenching experiments photovoltaic response. This work not only...
Organic-inorganic hybrid lead halide perovskites have been widely investigated in optoelectronics both experimentally and theoretically. The present work incorporates chemically modified graphene into nanocrystal SnO2 as the electron transporting layer (ETL) for highly efficient planar perovskite solar cells. modification of with conductive two-dimensional naphthalene diimide-graphene can increase surface hydrophobicity form van der Waals interaction between surfactant organic-inorganic...
ConspectusOrganic photovoltaics (OPVs), in which blend films of organic or polymer electron donor and acceptor are used as the active layer, a promising photovoltaic technology with great advantages solution processing, low cost, flexibility. The development small molecular acceptors has boosted power conversion efficiency (PCE) OPVs from 10% to 18%. Among them, have merits superior morphology stability excellent mechanical properties. However, owing key requirement very low-lying LUMO/HOMO...
Optoelectronic polymers are always π-conjugated consisting of C, H, N, S, and O elements. The main group element chemistry is a new tool to tune the optoelectronic properties polymers. However, resulting generally show moderate device performance because they cannot meet multiple requirements for solution-processed devices. Herein, we report an organoboron polymer, which can be used as polymer acceptor in all-polymer solar cells (all-PSCs) give power conversion efficiency high 10.1%. By...
Abstract Acceptor–acceptor (A‐A) copolymerization is an effective strategy to develop high‐performance n‐type conjugated polymers. However, the development of A‐A type polymers challenging due synthetic difficulty. Herein, a distannylated monomer strong electron‐deficient double B←N bridged bipyridine (BNBP) unit readily synthesized and used by Stille polycondensation. The resulting show ultralow LUMO energy levels −4.4 eV, which among lowest value reported for organoboron After n‐doping,...
Typical n-type conjugated polymers are based on fused-ring electron-accepting building blocks. Herein, we report a non-fused-ring strategy to design polymers, i.e. introducing electron-withdrawing imide or cyano groups each thiophene unit of polythiophene backbone. The resulting polymer, n-PT1, shows low LUMO/HOMO energy levels -3.91 eV/-6.22 eV, high electron mobility 0.39 cm2 V-1 s-1 and crystallinity in thin film. After n-doping, n-PT1 exhibits excellent thermoelectric performance with an...
Abstract Most of all‐fused‐ring π‐conjugated molecules have wide or medium bandgap and show photo response in the visible range. In this work, an n‐type molecule, which exhibits ultrasmall optical 1.22 eV strong near‐infrared (NIR) absorption with onset wavelength 1013 nm is reported. The molecule consists 14 aromatic rings has electron donor–acceptor characteristics. It excellent properties low‐lying HOMO/LUMO energy levels −5.48 eV/−3.95 high mobility 7.0 × 10 −4 cm 2 V −1 s . importantly,...
A light-emitting polymer with simultaneous blue (λmax = 445 nm), green 515 and red light 624 nm) emission for bias-independent white electroluminescence is reported (see Figure). The synthesized by covalently attaching a green-light-emissive red-light-emissive chromophore to macromolecule blue-light emission. White-light color coordinates of (0.31, 0.34) luminance efficiency 1.59 cd A–1 are obtained.
Owing to their solution processability, unique two-dimensional structure, and functionalization-induced tunable electronic structures, graphene oxide (GO) its derivatives have been used as a new class of efficient hole- electron-extraction materials in polymer solar cells (PSCs). Highly stable PSCs fabricated with GO and/or layers. In this review, we summarize recent progress emerging research field. We also present some rational concepts for the design development GO-based or layers...
A palladium particle-modified carbon fiber microdisk array electrode was designed and employed in capillary electrophoresis for the simultaneous detection of hydrazine, methylhydrazine, isoniazid. The Pd-modified had high catalytic ability hydrazines exhibited good reproducibility stability. response hydrazine linear over 3 orders magnitude with a correlation coefficient 0.993. limits isoniazid were 1.2, 2.1, 6.2 pg, respectively.
Abstract New single‐polymer electroluminescent systems containing two individual emission species—polyfluorenes as a blue host and 2,1,3‐benzothiadiazole derivative units an orange dopant on the main chain—have been designed synthesized. The resulting single polymers are found to have highly efficient white electroluminescence with simultaneous (λ max = 421 nm/445 nm) 564 from corresponding emitting species. influence of photoluminescence (PL) efficiencies both species (EL) polymer...
Abstract The effects of anode/active layer interface modification in bulk‐heterojunction organic photovoltaic (OPV) cells is investigated using poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) and/or a hole‐transporting/electron‐blocking blend 4,4′‐bis[( p ‐trichlorosilylpropylphenyl)‐phenylamino]biphenyl (TPDSi 2 ) and poly[9,9‐dioctylfluorene‐ co ‐ N ‐[4‐(3‐methylpropyl)]‐diphenylamine] (TFB) as interfacial layers (IFLs). Current–voltage data the dark AM1.5G light show...
We synthesize and systematically study a series of conjugated polymers with oligo(ethylene glycol) (OEG) or alkyl chain as the side poly[2,7-fluorene-alt-5,5-(4,7-di-2-thienyl-2,1,3-benzothiadiazole)] polymer backbone. Replacing OEG can decrease π–π stacking distance backbone in thin film from 0.44 to 0.41 nm because is more flexible than chain. As result, exhibits higher hole mobility, red-shifted absorption spectrum smaller bandgap those With increase length chain, resulting exhibit...
In this study, we have rationally designed and successfully developed sulfated graphene oxide (GO-OSO3H) with -OSO3H groups attached to the carbon basal plane of reduced GO surrounded edge-functionalized -COOH groups. The resultant GO-OSO3H is demonstrated be an excellent hole extraction layer (HEL) for polymer solar cells (PSCs) because its proper work function Ohmic contact donor polymer, improving conductivity, -OSO3H/-COOH enhancing solubility solution processing. Compared that GO, much...
Severe acute respiratory syndrome coronavirus (SARS-CoV), which emerged with highly contagious and life-threatening characteristics in 2002, remains a potential risk for future outbreaks. Membrane (M) envelope (E) proteins are major structural of the SARS-CoV. The M protein has been determined as protective antigen humoral responses. However, its roles stimulating cellular immunity remain elusive.In this study, panel peptides derived from E were tested by vitro refolding, T2 cell-binding...
On the basis of different approaches for modifying α-diimine palladium catalysts, a series methyl chloride complexes with various ligand backbones were synthesized and characterized. The corresponding cationic complex chelating esters further obtained by treatment acrylate (MA). It was observed that decomposition ester can occur to produce new two ligands counteranions, which provides pathway deactivation catalysts formation black fragmentation pattern loss. These employed in...