Hanyu Liu

ORCID: 0009-0001-7479-0178
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About
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Research Areas
  • High-pressure geophysics and materials
  • Nanowire Synthesis and Applications
  • Hydrogen Storage and Materials
  • Boron and Carbon Nanomaterials Research
  • GaN-based semiconductor devices and materials
  • Spectroscopy and Laser Applications
  • Rare-earth and actinide compounds
  • Ammonia Synthesis and Nitrogen Reduction
  • Superconductivity in MgB2 and Alloys
  • Organic Electronics and Photovoltaics
  • Perovskite Materials and Applications
  • Advanced Sensor and Energy Harvesting Materials
  • Graphene research and applications
  • Thin-Film Transistor Technologies
  • Magnetic Properties of Alloys
  • Iron-based superconductors research
  • Surface Modification and Superhydrophobicity
  • 2D Materials and Applications
  • Advanced Memory and Neural Computing
  • Luminescence and Fluorescent Materials
  • Photonic and Optical Devices
  • Advanced Battery Materials and Technologies
  • Nuclear Materials and Properties
  • Organic Light-Emitting Diodes Research
  • Phase Equilibria and Thermodynamics

Jilin University
2021-2025

Jilin Medical University
2022-2025

South China Normal University
2024-2025

State Key Laboratory of Superhard Materials
2021-2024

Jilin International Studies University
2024

Anhui University
2024

Carnegie Institution for Science
2023

We predict superconductivity for the carbon--boron clathrate ${\mathrm{SrB}}_{3}{\mathrm{C}}_{3}$ with ${T}_{c}=27\text{--}43\phantom{\rule{0.28em}{0ex}}\mathrm{K}$ Coulomb pseudopotential (${\text{\ensuremath{\mu}}}^{*}$) values between 0.17 and 0.10 using first-principles calculations conventional electron--phonon coupling. Electrical transport measurements, facilitated by an in situ experimental design compatible extreme synthesis conditions ($>3000\phantom{\rule{0.28em}{0ex}}\mathrm{K}$...

10.1103/physrevresearch.5.013012 article EN cc-by Physical Review Research 2023-01-12

Single-crystalline 9,10-bis(phenylethynyl)anthracene (BPEA) nanowires are promising building blocks for all-organic ultraviolet (UV) photodetectors owing to their environmental stability and efficient absorption of UV radiation. However, many the intrinsic properties BPEA become largely smeared when they adopt disordered ensembles. In this study, by exploiting exceptional graphoepitaxial effect hydrophobic parallel nanogrooves, self-aligned planar with high crystallinity chemical purity...

10.1063/5.0180826 article EN Applied Physics Letters 2024-01-08

It is a long-thought proposal that dense light-element molecular hydrides, such as diborane (${\mathrm{B}}_{2}{\mathrm{H}}_{6}$) and methane (${\mathrm{CH}}_{4}$), offer an ideal platform to search for phonon-mediated superconductors. However, these hydrides are often unstable under sufficiently high pressure, e.g., ${\mathrm{B}}_{2}{\mathrm{H}}_{6}$ decomposed into BH ${\mathrm{H}}_{2}$ at pressures of above 153 GPa, which unlikely exhibit superconductivity. Here, we find feasible route...

10.1103/physrevb.110.l060514 article EN Physical review. B./Physical review. B 2024-08-20

Abstract The monolithic integration of bottom‐up nanowires into devices requires rational growth aligned nanowires. Of the proposed methods, few are sufficiently general to be applicable diverse materials and substrates. In this work, oriented poly(tetrafluoroethylene) (PTFE) grooves with nanoscale depth width transferred onto different substrates through a simple directional mechanical friction. This friction is achieved in seconds by program‐driven handwriting machine. Various organic...

10.1002/admt.202302015 article EN Advanced Materials Technologies 2024-02-14

Abstract Guided nanowires grown on polymer surfaces facilitate their seamless integration as flexible devices without post‐growth processing steps. However, this is challenging due to the inability of films provide required lattice‐matching effect. In work, challenge addressed by replicating highly aligned nanogrooves from a compact disc (CD) onto casted polydimethylsiloxane (PDMS) surface. Leveraging replicated nanogrooves, copper hexadecafluorophthalocyanine (F 16 CuPc) and various metal...

10.1002/advs.202403870 article EN cc-by Advanced Science 2024-06-20

Metal substitutions have been recognized as an efficient approach for exploring unusual superhydrides, aiming to discover configurations with diverse structures and enhanced superconductivity. However, the roles of metal type concentration on high-temperature superconducting (high-Tc) hydrides multiple components remain underexplored in this rapidly advancing domain. In study, we conducted extensive experiments equimolar La-Ce-Y alloy superhydride highest configuration entropy among...

10.1103/physrevb.111.024505 article EN Physical review. B./Physical review. B 2025-01-07

Integrating the dual functionalities of a photodetector and photonic synapse into single device is challenging due to their conflicting requirements for photocurrent decay rates. This study addresses this issue by seamlessly depositing transparent indium tin oxide (ITO) electrodes onto self-oriented copper hexadecafluoro-phthalocyanine (F16CuPc) nanowires growing horizontally along hot-stamped periodic nanogrooves on flexible polyimide plastic film. in-situ-fabricated achieves bending-stable...

10.1021/acsami.4c12357 article EN ACS Applied Materials & Interfaces 2024-10-14

Recent advancements in artificial intelligence have spurred growing interest developing innovative architectures for synapses. Among these, nanowires emerged as promising candidates creating lightweight, flexible, and energy-efficient However, achieving in-plane aligned growth of on flexible substrates poses a substantial challenge their integration into bendable This study introduces room-temperature solution-phase graphoepitaxial technique that facilitates the along hydrophilic nanogrooves...

10.1063/5.0258019 article EN Applied Physics Letters 2025-05-05

The chemical vapor deposition (CVD) method holds promise for the scalable and controlled synthesis of high-quality borophene. However, current lack an atomistic understanding intricate kinetic pathways from precursors to borophene impedes process optimization. Here, we employ first-principles simulations systematically explore pyrolytic decomposition most used precursor diborane (B

10.1021/acs.jpclett.4c01770 article EN The Journal of Physical Chemistry Letters 2024-09-16

Electrides have attracted increasing interest due to their diversely physical properties, including low work function, high catalytic activity, as well potential superconductivity. In this work, using first-principles crystal structure prediction method in combination with calculations, we uncovered seven thermodynamically stable electrides the electron-rich Li-Si system at a pressure range of 25--100 GPa, namely $C2/c\phantom{\rule{4pt}{0ex}}{\mathrm{Li}}_{5}\mathrm{Si},...

10.1103/physrevb.110.134114 article EN Physical review. B./Physical review. B 2024-10-23

Valence transition could induce structural, insulator-metal, nonmagnetic-magnetic and superconducting transitions in rare-earth metals compounds, while the underlying physics remains unclear due to complex interaction of localized $4f$ electrons as well their coupling with itinerant electrons. The valence elemental metal europium (Eu) still has remained a matter debate. Using resonant x-ray emission scattering diffraction, we pressurize states Eu study its structure up 160 GPa. We provide...

10.1103/physrevlett.129.016401 article EN Physical Review Letters 2022-06-27

Hydrogen-based compounds demonstrate high-temperature superconductivity under pressure, offering promising avenues for exploring metal hydrides with elevated critical temperatures (<a:math xmlns:a="http://www.w3.org/1998/Math/MathML"><a:msub><a:mi>T</a:mi><a:mi mathvariant="normal">c</a:mi></a:msub></a:math>), while comprising <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"><c:msub><c:mi mathvariant="normal">H</c:mi><c:mn>2</c:mn></c:msub></c:math> molecular units were previously deemed...

10.1103/physrevb.110.224507 article EN cc-by Physical review. B./Physical review. B 2024-12-10

Exploring low oxidation states of alkaline earth metal elements with natural abundance can be useful for renewable energy applications and is highly desirable. Although in +1...

10.1039/d4ta05559d article EN Journal of Materials Chemistry A 2024-01-01

In this paper, we present the design and simulation of a GaN-based back-illuminated ultraviolet (UV) photodetector with an absorption layer compensation doping. conventional UV detector, typically exhibits high background doping concentration (ranging from 1.0&times;1015 to 1.0&times;1017 cm<sup>-3</sup>), which unintentionally introduces carriers that impact electric field distribution within layer. Consequently, near N electrode is diminished. back-illumination operating mode, substantial...

10.1117/12.3022612 article EN 2024-01-25

A vast amount of Raman spectroscopic data, obtained using diamond anvil cell technique under in situ high pressure-temperature conditions, has been used for mapping the phase transitions hydrogen temperature range 300 K to 900 and pressure up gigapascal, a region which most information was unknown previously. The isothermal isobaric dependencies frequency peak width intramolecular vibration mode are established based on thousands data files measured during hundreds independent experimental...

10.48550/arxiv.2201.06411 preprint EN cc-by arXiv (Cornell University) 2022-01-01
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