Jiayi Li

ORCID: 0000-0002-8041-8049
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About
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Research Areas
  • Ferroelectric and Piezoelectric Materials
  • Ferroelectric and Negative Capacitance Devices
  • Electronic and Structural Properties of Oxides
  • Semiconductor materials and devices
  • CO2 Sequestration and Geologic Interactions
  • Phase Equilibria and Thermodynamics
  • Advancements in Battery Materials
  • Advanced Memory and Neural Computing
  • Magnetic and transport properties of perovskites and related materials
  • Advanced Battery Materials and Technologies
  • Geothermal Energy Systems and Applications
  • Advanced Nanomaterials in Catalysis
  • Chalcogenide Semiconductor Thin Films
  • Nanoparticle-Based Drug Delivery
  • Nanoplatforms for cancer theranostics
  • Advanced Photocatalysis Techniques
  • MXene and MAX Phase Materials
  • Multiferroics and related materials
  • Micro and Nano Robotics
  • Characterization and Applications of Magnetic Nanoparticles
  • Microencapsulation and Drying Processes
  • Dielectric properties of ceramics
  • Proteins in Food Systems
  • Ga2O3 and related materials
  • Semiconductor Quantum Structures and Devices

Collaborative Innovation Center of Advanced Microstructures
2022-2025

Nanjing University
2023-2025

University of Hong Kong
2024-2025

First Affiliated Hospital of Henan University of Science and Technology
2024-2025

Henan University of Science and Technology
2025

Materials Science & Engineering
2025

Hubei University
2024

National Laboratory of Solid State Microstructures
2023

Abstract Perovskite‐oxide‐based ferroelectric tunnel junctions (FTJs) hold great potential for applications in non‐volatile memory and neuromorphic computing due to their unique properties. However, the challenges synthesizing high crystalline quality perovskite oxides directly on silicon wafer limit of these FTJs conventional Si‐based integrated circuits, let alone neural networks. Herein, oxide with an ON/OFF ratio up 1.2×10 6 , writing/erasing speed down 1 nanosecond, cycling endurance...

10.1002/adfm.202316473 article EN Advanced Functional Materials 2024-03-10

Abstract Self‐propelled nanomotors possess strong propulsion and penetration abilities, which can increase the efficiency of cellular uptake nanoparticles enhance their cytotoxicity against tumor cells, opening a new path for treating major diseases. In this study, concept driving by alternately stretching contracting temperature‐sensitive polymer (TS‐P) chain is proposed. The TS‐Ps are successfully linked to one side Cu 2‐x Se@Au (CS@Au) form Janus structure, designated as Se@Au‐polymer...

10.1002/smll.202403800 article EN Small 2024-08-20

Doped HfO2 thin films exhibit robust ferroelectric properties even for nanometric thicknesses, are compatible with current Si technology, and thus have great potential the revival of integrated ferroelectrics. Phase control reliability core issues their applications. Here, we show that, in (111)-oriented 5%La:HfO2 (HLO) epitaxial deposited on (La0.3Sr0.7)(Al0.65Ta0.35)O3 substrates, flexoelectric effect, arising from strain gradient along film's normal, induces a rhombohedral distortion...

10.1063/5.0144958 article EN Applied Physics Reviews 2023-09-01

Abstract Charge transfer in perovskite oxide heterostructures could break the delicate balance among charge, spin, orbital and lattice order at interface, producing exotic phenomena that cannot be observed bulk materials. Here, opposite interfacial charge directions are SrIrO 3 /NdNiO /LaNiO d /5 heterostructures. This is accompanied with an inverse change of Ni e g polarization Ni-O pd hybridization across by stretching/compressing out-of-plane bond internal electrical field due to electron...

10.1038/s42005-023-01194-0 article EN cc-by Communications Physics 2023-04-14

Oxide-based ferroelectric tunnel junctions (FTJs) show promise for nonvolatile memory and neuromorphic applications, making their integration with existing semiconductor technologies highly desirable. Furthermore, resistance fatigue in current silicon-based remains a critical issue. Understanding this mechanism semiconductor-integrated FTJ is essential yet unresolved. Here, we systematically investigate the performance of ultrathin bismuth ferrite BiFeO 3 (BFO)–based FTJs integrated various...

10.1126/sciadv.ads0724 article EN cc-by-nc Science Advances 2025-04-11

Esophageal cancer (EC) represents a highly recurrent and aggressive malignancy within the digestive system. However, conventional therapeutic strategies exhibit notable limitations in their clinical applications. Photothermal therapy (PTT), combined with ferroptosis, has attracted considerable attentions, emerging as promising novel strategy for EC treatment. Therefore, there is critical need to develop drug delivery system capable of effectively integrating these two approaches. In this...

10.1186/s12951-025-03434-7 article EN cc-by-nc-nd Journal of Nanobiotechnology 2025-05-17

Engineering of interfacial thermal transport is crucial for efficient heat-to-electricity conversion and cooling electronic devices. Here, we achieve remarkably high conductance in a series aluminum/silicon heterostructures grown by molecular beam epitaxy, up to 0.49 GW m−2 K−1 at room temperature, which ∼29% greater than state-of-the-art values. The pristine interface near perfect without any notable defects, as confirmed atomic-resolution transmission electron microscopy. Density...

10.1063/5.0253324 article EN Applied Physics Letters 2025-05-26

Remanent polarization is a key parameter of ferroelectric material. A large remanent favorable for various applications. Here, we report 116.8 \ensuremath{\mu}C ${\mathrm{cm}}^{\ensuremath{-}2}$ observed in ${\mathrm{Bi}\mathrm{Mg}}_{2/3}{\mathrm{Nb}}_{1/3}{\mathrm{O}}_{3}$ (BMN)-modified ${\mathrm{Bi}\mathrm{Fe}\mathrm{O}}_{3}$ (BFO) thin films, epitaxially deposited on (001)-oriented ${\mathrm{Sr}\mathrm{Ti}\mathrm{O}}_{3}$ substrates buffered with...

10.1103/physrevapplied.19.054064 article EN Physical Review Applied 2023-05-19

High-mobility electron gases in SrTiO3-based heterostructures have been mainly synthesized on single TiO2 terminated SrTiO3 substrates. Here, we show a high-mobility gas observed Sr2TiO4/SrTiO3 heterostructure based an untreated substrate with mixed termination, showing the mobility value up to 28 000 cm2 V−1 s−1 at 2 K. SrO–SrO vertical Ruddlesden–Popper faults Sr2TiO4 film provide escape channels for oxygen atoms under high temperatures, enabling as-grown tuning of vacancies layer during...

10.1063/5.0130069 article EN Applied Physics Letters 2022-12-12

Highly ordered lateral composition modulation (LCM) is obtained in InAs/AlAs short-period superlattices (SPS) grown by molecular beam epitaxy and its effect on photoluminescence (PL) studied. The formation of LCM length can be resolved x-ray diffraction. Furthermore, atomic-resolution scanning transmission electron microscopy results reveal both the strain distribution modulated unmodulated samples demonstrate a clear transition redistribution due to formation, showing that preferential...

10.1116/6.0002748 article EN Journal of Vacuum Science & Technology A Vacuum Surfaces and Films 2023-06-06
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