Qian Li

ORCID: 0000-0001-7661-6635
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About
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Research Areas
  • Magnetic and transport properties of perovskites and related materials
  • Organic Electronics and Photovoltaics
  • Advanced Condensed Matter Physics
  • Multiferroics and related materials
  • X-ray Diffraction in Crystallography
  • Conducting polymers and applications
  • Crystallization and Solubility Studies
  • Perovskite Materials and Applications
  • Physics of Superconductivity and Magnetism
  • Electronic and Structural Properties of Oxides
  • Ferroelectric and Piezoelectric Materials
  • Liquid Crystal Research Advancements
  • GaN-based semiconductor devices and materials
  • Functional Brain Connectivity Studies
  • Thin-Film Transistor Technologies
  • Magnetic properties of thin films
  • Shape Memory Alloy Transformations
  • Synthesis and Properties of Aromatic Compounds
  • Photorefractive and Nonlinear Optics
  • Treatment of Major Depression
  • Iron-based superconductors research
  • Advanced Image Fusion Techniques
  • Semiconductor materials and devices
  • Ga2O3 and related materials
  • Advanced Memory and Neural Computing

Chinese Academy of Sciences
2014-2024

City University of Hong Kong
2023-2024

Southeast University
2024

Czech Academy of Sciences, Institute of Physics
2024

Jiangxi Academy of Sciences
2024

Nanjing University
2014-2023

Institute of Physics
2015-2023

National Laboratory for Superconductivity
2023

Collaborative Innovation Center of Advanced Microstructures
2014-2023

Suzhou Institute of Nano-tech and Nano-bionics
2022-2023

Bulk-heterojunction organic photovoltaic devices with nonfullerene acceptors (NFAs) exhibit efficient hole transfer small interfacial energy offset, which results in power conversion efficiencies above 17% single junction using the high-performance NFA of Y6. However, underlying mechanism responsible for channel polymer/Y6 blends remains poorly understood. Herein, we report that photocharge generation is mediated by an intra-moiety excited state a blend donor polymer PM6 and Y6 broadband...

10.1021/jacs.0c04890 article EN Journal of the American Chemical Society 2020-06-30

A low bandgap polymer acceptor PF5-Y5 was synthesized and its all-PSCs achieved an impressive device efficiency of 14.45% with both high <italic>V</italic><sub>oc</sub> <italic>J</italic><sub>sc</sub> due to the excellent absorption coverage, small energy loss, efficient charge separation.

10.1039/d0ee01828g article EN cc-by Energy & Environmental Science 2020-01-01

Although all-polymer solar cells (all-PSCs) show great commercialization prospects, their power conversion efficiencies (PCEs) still fall behind small molecule acceptor-based counterparts. In blends, the optimized morphology and high molecular ordering are difficult to achieve since there is troublesome competition between crystallinity of polymer donor acceptor during film-formation process. Therefore, it challenging improve performance all-PSCs. Herein, a ternary strategy adopted modulate...

10.1002/adma.202208165 article EN Advanced Materials 2022-12-03

In this paper we designed a kind of aggregation-induced emission (AIE) chiral fluorescence emitters (R/S-BINOL-CN enantiomers) in the aggregate state. Chiral emissive nematic liquid crystals (N*-LCs) prepared by doping AIE-active R/S-BINOL-CN enantiomers into common achiral crystal (N-LC, E7) can self-assemble as regularly planar Grandjean texture leading to high luminescence dissymmetry factor (glum ) circularly polarized (AI-CPL) signal up 0.41, which be attributed dipolar interactions...

10.1002/chem.201801186 article EN Chemistry - A European Journal 2018-05-29

In organic photovoltaic (OPV) blends, photogenerated excitons dissociate into charge-separated electrons and holes at donor/acceptor interfaces. The bimolecular recombination of spin-uncorrelated may cause nonradiative loss by forming the low-lying triplet excited states (T1) via intermediate charge-transfer states. Here, we show that such a spin-related channel can be suppressed in OPV blends with fluorinated nonfullerene acceptors (NFAs). By combining ultrafast optical spectroscopy...

10.1021/jacs.0c13352 article EN Journal of the American Chemical Society 2021-03-15

A series of polymer acceptors have been synthesized. The optical and electronic properties the copolymers can be well-tuned via a random copolymerization strategy. best-performing PY-82-based binary device produces record-high efficiency 17.15%.

10.1039/d2ee00972b article EN Energy & Environmental Science 2022-01-01

Boehmite is transformed into γ-Al 2 O 3 through high-energy ball milling without high-temperature treatment. The AlO 4 and 5 appear with the amorphization of boehmite drives formation crystalline .

10.1039/d3ce01113e article EN CrystEngComm 2024-01-01

Toll-like receptors (TLRs) 2 and 4 play critical roles in intestinal inflammation caused by Fusobacterium nucleatum (F. nucleatum) infection, but the role of TLR2/TLR4 regulation proinflammatory cytokines remains unknown. In this study, through microarray analysis qRT-PCR, we showed that are involved F. nucleatum-induced inflammatory signaling pathway Caco-2 cells, C57BL/6 mice human clinical specimens. TLR2-/- TLR4-/- mice, infection resulted increased colonization bacteria production IL-8,...

10.1371/journal.pone.0186179 article EN cc-by PLoS ONE 2017-10-09

Hydrogen transport on transition-metal oxides is a shared process in many important physical and chemical changes of interest. In this work, DFT + U calculations have been carried out to explore the mechanism for hydrogen migration defect-free oxygen-deficient LaMO3(001) (M = Cr, Mn, Fe) surfaces. The calculated results indicate that preferentially adsorbed at oxygen sites all surfaces other than defective LaCrO3(001), where occupation vacancies energetically most favorable. resultant O–H...

10.1021/acs.langmuir.8b04138 article EN Langmuir 2019-05-29

Polymerizing small-molecular acceptors (SMAs) is a promising route to construct high performance polymer of all-polymer solar cells (all-PSCs). After SMA polymerization, the microstructure molecular packing largely modified, which essential in regulating excited-state dynamics during photon-to-current conversion. Nevertheless, relationship between and polymerized SMAs (PSMAs) remains poorly understood. Herein, are investigated corresponding PSMA utilizing combination experimental theoretical...

10.1002/advs.202301931 article EN cc-by Advanced Science 2023-06-04

The electric field manipulation of magnetic properties is currently great interest for the opportunities provided in low-energy-consuming spintronics devices. Here, we report effect on and transport ferromagnetic SrRuO3 film which epitaxially grown Pb(Mg1/3Nb2/3)O3-PbTiO3 ferroelectric substrate. With application substrate, magnetization, Curie temperature resistivity are effectively modified. mechanism these ascribed to rotations RuO6 oxygen octahedra caused by electric-field-induced...

10.1038/srep06991 article EN cc-by-nc-nd Scientific Reports 2014-11-11

Well-prepared side-chain discotic liquid crystal polymers with shorter spacers in ordered columnar phases are fascinating and promising cost-effective, solution-processable organic semiconducting materials for various potential optoelectronic device applications.

10.1039/c7py00364a article EN Polymer Chemistry 2017-01-01

The electrical field manipulation of magnetization is investigated in an Au/NiO/Pt heterostructure, which fully compatible with the standard complementary metal-oxide semiconductor process. Reversible and stable unipolar resistive switching effects as well a significant nonvolatile change are observed this device during set reset processes at room temperature. Further analysis indicates that formation rupture metallic Ni conducting filaments caused by electric would be responsible for...

10.1063/1.4891482 article EN Applied Physics Letters 2014-07-21

Barley is one of the top 10 crop plants in world. During its whole lifespan, barley frequently infected by various pathogens. In this study, we performed genome-wide analysis largest group plant disease resistance ( R ) genes, nucleotide binding site–leucine-rich repeat receptor NLR gene, an updated genome. A total 468 genes were identified from improved genome, including RNL subclass and 467 CNL genes. Proteins 43 shown to contain 25 different integrated domains, WRKY BED. The gene number...

10.3389/fgene.2021.694682 article EN cc-by Frontiers in Genetics 2021-05-24

The magnetic, electric, and dielectric properties of a B‐site ordered double perovskite Pr 2 CoMnO 6 were investigated. A charge localization state negative magnetoresistance effect observed below 250 K. Different from other perovskites, one two positive magnetodielectric effects simultaneously in this sample. physical origins these interesting discussed.

10.1111/jace.13009 article EN Journal of the American Ceramic Society 2014-06-03

We experimentally investigate the second-harmonic generation of a high-order Laguerre-Gaussian (LG) mode under quasi-phase-matching (QPM) configuration. First, we introduce simple method to observe azimuthal (l) and radial (p) indices LG modes. Based on astigmatic transformation technique, l p are revealed in number dark stripes converted pattern focal plane. Then, using this efficient measurement, demonstrate experiments with its being twice those inputted fundamental wave through QPM...

10.1364/ol.42.004387 article EN Optics Letters 2017-10-23

For over two decades, most high-performance organic photovoltaics (OPVs) have been made with donor:acceptor bulk heterojunctions domain sizes limited by exciton diffusion, where charge separation mostly takes place through the dissociation of interfacial charge-transfer (xCT) excitons. Recently, nonfullerene acceptor (NFA)-based OPVs shown excellent compatibility to device structures large domains in active layers. However, it remains elusive how excitations that are distant from interfaces...

10.1021/acs.jpclett.3c01861 article EN The Journal of Physical Chemistry Letters 2023-08-15

After decades of debate, now there is a rough consensus that at zero temperature the spin-$1/2$ Heisenberg antiferromagnet on triangular lattice three-sublattice ${120}^{\ensuremath{\circ}}$ magnetically ordered, in contrast to quantum spin liquid as originally proposed. However, remains considerable discrepancy magnetization reported among various methods. To resolve this issue, work we revisit model by tensor-network state algorithm. The ground-state energy per bond ${E}_{b}$ and ${M}_{0}$...

10.1103/physrevb.105.184418 article EN Physical review. B./Physical review. B 2022-05-16
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