A5100404036- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Perovskite Materials and Applications
- Supercapacitor Materials and Fabrication
- Luminescence and Fluorescent Materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Photocatalysis Techniques
- Covalent Organic Framework Applications
- Advancements in Battery Materials
- Graphene research and applications
- Dendrimers and Hyperbranched Polymers
- Organic Light-Emitting Diodes Research
- Carbon dioxide utilization in catalysis
- Porphyrin and Phthalocyanine Chemistry
- Molecular Junctions and Nanostructures
- Advanced Sensor and Energy Harvesting Materials
- Quantum Dots Synthesis And Properties
- Advanced Numerical Analysis Techniques
- Polyoxometalates: Synthesis and Applications
- Organometallic Complex Synthesis and Catalysis
- Synthesis and properties of polymers
- Chemical Synthesis and Reactions
- Fullerene Chemistry and Applications
- Manufacturing Process and Optimization
University of Chinese Academy of Sciences
2018-2024
Chinese Academy of Sciences
2015-2024
Zhengzhou University
2016-2024
Shanghai Institute of Organic Chemistry
2015-2024
Shanghai Normal University
2022-2024
Zhongyuan University of Technology
2022-2024
Zhejiang University
1997-2024
Henan University of Technology
2024
Guizhou Electric Power Design and Research Institute
2023
Peking University
2023
For tailoring solution-processable optoelectronic thin films, a rational strategy with amphiphilic molecular design is proposed. A donor-acceptor dyad consisting of an oligothiophene and C60, when modified hydrophilic wedge on one side paraffinic the other (1Amphi), forms over wide temperature range photoconducting smectic liquid crystal having bicontinuous arrays densely packed donor acceptor units. In contrast, only wedges (1Lipo), crystalline mesophase, which however poorly conductive. As...
Fluorinated graphene with tuneable F-loading amount and properties was prepared <italic>via</italic> a facile solution approach using oxide liquid diethylaminosulfur trifluoride (DAST) as starting materials under mild conditions.
Developing efficient and wide spectrally acting photocatalysts for light-driven hydrogen production from water is highly desirable solar energy conversion. Herein, diketopyrrolopyrrole (DPP) used to combine with triphenylamine (TPA), bipyridyl (bdy), biphenyl (bph) units construction of conjugated microporous polymer photocatalysts. Although the synthesized two polymers, DPP-bdy-TPA DPP-bph-TPA, have a similar framework structure, former bearing hydrophilic unit displays much better...
Donor–acceptor (D–A)-type photocatalysts containing the polycyclic aromatic donor (BTT-CPP) and nonpolycyclic (TTB-CPP) are designed synthesized. Their physicochemical properties thoroughly investigated. The photocatalytic hydrogen generation experiments show that both polymers exhibit distinct performance. BTT-CPP displays an attractive evolution rate (HER) of 37,866 μmol g–1 h–1 without further addition metal co-catalyst, one highest values reported for organic photocatalysts. optimal HER...
High-efficiency light-driven hydrogen evolution from water was demonstrated by using poly(phenyleneethynylene) bearing negatively charged, [G3] poly(benzyl ether) dendrimeric side groups 3(L4) as photosensitizer. Three-dimensional wrapping of the conjugated backbone suppressed self-quenching photoexcited state, while methyl viologen (MV(2+)), a positively charged electron acceptor, trapped on its surface, to form spatially separated donor-acceptor supramolecular complex. Studies with...
Dendritic molecules appended with multiple zinc porphyrin units (DPm, m [number of units] = 6, 12, and 24) trap bipyridine compounds carrying fullerene (Py2Fn, n C60 1−3), affording coordination complexes DPm⊃Py2Fn having a photoactive layer consisting spatially segregated donor acceptor arrays on their surface. Complexes are stable enough (K [average binding affinity] 1.1 × 106−4.4 106 M-1 in CHCl3 at 25 °C) to be isolated by gel permeation chromatography. UHV−STM microscopy enables clear...
Conjugated porous polymers based on 1,3,5-triazine and dibenzo[<italic>b</italic>,<italic>d</italic>]thiophene sulfone (DBTSO) units show excellent solar water splitting ability. A high hydrogen evolution rate of 16 287 μmol g<sup>−1</sup> h<sup>−1</sup> is achieved.
Abstract To overcome the low energy density bottleneck of graphene‐based supercapacitors and to organically endow them with high‐power density, ultralong‐life cycles, etc., one rational strategy that couple graphene sheets multielectron, redox‐reversible, structurally‐stable organic compounds. Herein, a graphene‐indanthrone (IDT) donor–π–acceptor heterojunction is conceptualized for efficient smooth 6H + /6e − transfers from pseudocapacitive IDT molecules electrochemical double‐layer...
As compared to <bold>P0</bold>, <bold>P2</bold> showed a 160-fold performance improvement, much larger than 3.6-fold for <bold>P1</bold>.
Abstract Perovskite solar cells (PSCs) longevity is nowadays the bottleneck for their full commercial exploitation. Although lot of research ongoing, initial decay output power – an effect known as “burn‐in” degradation happening in first 100 h still unavoidable, significantly reducing overall performance (typically >20%). In this paper, origin n‐i‐p type PSCs demonstrated that directly related to Li + ions migration coming from SnO 2 electron transporting layer visualized by...
Amino acids as capping agents can not only produce a variety of Cu nanocrystals, but also improve their anti-oxidation properties.
A new optoelectronic building block, dithieno[3′,2′:3,4;2″,3″:5,6]benzo[1,2-c][1,2,5]thiadiazole, was designed by applying a fusion strategy on 4,7-dithienyl-2,1,3-benzothiadazole (DTBT) and named as fDTBT. In combination with benzo[1,2-b:4,5-b′]dithiophene (BDT), fDTBT used for the construction of family donor–acceptor copolymers, P(BDTn-fDTBT), different side chains (n is carbon number chain varies from 8, 10, 12, 16, 20, to 24). It found that have great impact processing photovoltaic...
The energy density formula illuminated that widening the voltage window and maximizing capacitance are effective strategies to boost of supercapacitors. However, aqueous electrolyte-based devices generally afford a less than 1.2 V in view water electrolysis, chemically converted graphene yields mediocre capacitance. Herein, multi-electron redox-reversible, structurally stable indanthrone (IDT) π-backbones were rationally coupled with reduced oxide (rGO) framework form IDT@rGO molecular...
Zinc porphyrin-appended dendrimers, 12PZn, 18PZn, 24PZn, and 36PZn, containing 12, 18, 24, 36 zinc porphyrin units, respectively, were synthesized using dyad (2PZn) triad (3PZn) as precursors. Although these dye-functionalized dendrimers all serve chiroptical sensors for an asymmetric bipyridine (RR- SS-Py2), the sensing capability is highly dependent on structure of dendritic scaffold. 2PZn, which chiroptically silent toward Py2, turns cooperative displays a large ICD (induced circular...
Comprehensive Summary The development of conjugated polymer photocatalysts for efficient solar‐to‐hydrogen energy conversion is highly desirable the sustainability our society. Although construction donor‐acceptor (D‐A) structure in has been well documented, less attention paid on how large D and A units combined together could achieve best performance. Herein, a series D‐A copolymers P(BDT‐DBTSO x ) ( = 7, 19, 39, 79) composed benzodithiophene (BDT) donor unit an oligomeric dibenzo[ b , d...
Third-generation dendrimers have been used to enable the synthesis and isolation of a series spatially isolated, discrete conjugated wires G3-n (where n is number repeating monomer units, see schematic representation), including 147-nm long G3-64, which contains 192 aromatic rings 256 triple bonds in backbone. Photochemical studies show there enhanced π-electronic conjugation these systems.
Abstract Multiporphyrin dendrimers are among the most promising architectures to mimic oxygenic light‐harvesting complex because of their structural similarities and synthetic convenience. The overall geometries determined by core structure, type dendron, number generations interior repeating units. rigid bulky volume exterior porphyrin units in multiporphyrin give rise well‐ordered three‐dimensional structures. As increases, however, structures become disordered randomized due flexibility...
To tailor organic p/n heterojunctions with molecular-level precision, a rational design strategy using side-chain incompatibility of covalently connected donor-acceptor (D-A) dyad has been successfully carried out. An oligothiophene-perylenediimide dyad, when modified triethylene glycol side chains at one terminus and dodecyl the other (2(Amphi)), self-assembles into nanofibers long-range D/A heterojunction. In contrast, is both termini (2(Lipo)), ill-defined microfibers result. steady-state...
ABSTRACT Donor–acceptor (D–A) conjugated copolymers are one of known classes organic optoelectronic materials and have been well developed. However, less attention has paid on acceptor–acceptor (A–A) analogs. In this work, two types A–A copolymers, namely P1‐C n P2‐C ( is the carbon number their alkyl side chains), were designed synthesized based perylenediimide PDI ) 2,1,3‐benzothiadiazole BT ). Different from , polymers additional acetylene π‐spacers between thus hold a more planar...
Graphene electrodes with ultrahigh volumetric & gravimetric capacitances were prepared through pillaring fluorographite sheets pseudocapacitive diamines.
Although rapid progress has been witnessed recently in regular perovskite solar cells (PSCs), one of the bottlenecks to delay their industrialization is complicated and poor reproducible doping process widely used hole-transporting material (HTM) spiro-OMeTAD. To address this issue, herein, an unreported polymer, P25NH, synthesized adopted as a dopant-free hole transport layer (HTL) PSCs. Compared with commonly HTM poly(3-hexylthiophene), P25NH shows better aggregation property, enhanced...
Two isomeric molecules with structural variation prepared by simply exchanging benzothiadiazole and thiophene positions displayed significantly different charge transport photovoltaic performances.