Yanyong Li

ORCID: 0000-0002-7584-7690
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About
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Research Areas
  • 2D Materials and Applications
  • Perovskite Materials and Applications
  • MXene and MAX Phase Materials
  • Advanced Photocatalysis Techniques
  • ZnO doping and properties
  • Quantum Dots Synthesis And Properties
  • Magnetic properties of thin films
  • Nanowire Synthesis and Applications
  • Advanced battery technologies research
  • Graphene research and applications
  • Electronic and Structural Properties of Oxides
  • Gas Sensing Nanomaterials and Sensors
  • Gear and Bearing Dynamics Analysis
  • Electrocatalysts for Energy Conversion
  • Advancements in Battery Materials
  • Magnetic and transport properties of perovskites and related materials
  • Chalcogenide Semiconductor Thin Films
  • Structural Analysis and Optimization
  • Catalysis and Oxidation Reactions
  • Antenna Design and Optimization
  • Engineering Structural Analysis Methods
  • Magnetic Properties and Applications
  • Machine Learning in Materials Science
  • Magnetic Bearings and Levitation Dynamics
  • Aerospace Engineering and Energy Systems

Hong Kong Polytechnic University
2015-2025

Henan University
2022-2025

Zhengzhou University
2025

Shandong Agricultural University
2024

Ministry of Agriculture and Rural Affairs
2024

Zhejiang University
2018-2020

Chinese Academy of Sciences
2014

Institute of Semiconductors
2013

University of Electronic Science and Technology of China
2007

Xi'an Jiaotong University
2002

Abstract Group‐10 transition metal dichalcogenides (TMDs) with distinct optical and tunable electrical properties have exhibited great potential for various optoelectronic applications. Herein, a self‐powered photodetector is developed broadband response ranging from deep ultraviolet to near‐infrared by combining FA 1− x Cs PbI 3 perovskite PdSe 2 layer, newly discovered TMDs material. Optoelectronic characterization reveals that the as‐assembled /perovskite Schottky junction sensitive light...

10.1002/advs.201901134 article EN Advanced Science 2019-08-07

Work function strongly impacts the surficial charge distribution, especially for metal-support electrocatalysts when a built-in electric field (BEF) is constructed. Therefore, studying correlation between work and BEF crucial understanding intrinsic reaction mechanism. Herein, we present Pt@CoOx electrocatalyst with large difference (ΔΦ) strong BEF, which shows outstanding hydrogen evolution activity in neutral medium 4.5-fold mass higher than 20 % Pt/C. Both experimental theoretical results...

10.1002/anie.202116057 article EN Angewandte Chemie International Edition 2022-01-24

The newly discovered Group-10 transition metal dichalcogenides (TMDs) like PtSe2 have promising applications in high-performance microelectronic and optoelectronic devices due to their high carrier mobilities, widely tunable bandages ultrastabilities. However, the performance of broadband photodetectors integrated with silicon remains undiscovered. Here, we report successful preparation large-scale, uniform vertically grown films by simple selenization method for design a PtSe2/Si nanowire...

10.1038/s41427-018-0035-4 article EN cc-by NPG Asia Materials 2018-04-01

2D van der Waals crystals, possessing excellent electronic and physical properties, have been intriguing building blocks for organic optoelectronic devices. Most of the materials are served as hole transport layers in Here,it is reported that solution exfoliated few black phosphorus (BP) can be an effective electron layer (ETL) photovoltaics (OPVs) first time. The power conversion efficiencies (PCEs) BP‐incorporated OPVs improved to 8.18% average with relative enhancement 11%. incorporation...

10.1002/adfm.201503273 article EN Advanced Functional Materials 2015-12-28

Interest in two-dimensional (2D) materials is growing exponentially across various scientific and engineering disciplines owing to their fascinating electrical, optical, chemical, thermal properties. As one of the newest members 2D nanomaterial family, black phosphorus (BP), has recently attracted much attention all over world shown great potential novel nanoelectronics its direct narrow bandgap. Regarding scale production BP related electronic devices, liquid-phase exfoliation reveals...

10.1016/j.flatc.2017.03.001 article EN cc-by-nc-nd FlatChem 2017-04-01

The giant anisotropic Raman response of encapsulated ultrathin black phosphorus (BP) is reported by uniaxial strain. A modified bending technique employed to apply precise tensile strain along the zigzag or armchair direction BP a layer polymethyl methacrylate. shift rates 1 g , B 2g and 2 modes are significantly distinct for applied different directions. For direction, rate mode can reach remarkable value ≈−11 cm −1 /% In addition, Grüneisen parameter as high ≈2.5, which largest among all...

10.1002/adfm.201600986 article EN Advanced Functional Materials 2016-06-22

As a rising star in the family of two-dimensional (2D) materials, black phosphorus (BP) has recently attracted tremendous attention all over world and demonstrated great potential energy applications owing to its direct narrow bandgap, high carrier mobility theoretical capacity, as well anisotropic structure. However, some critical issues remain be studied before scalable production BP for applications, such preparation methods performance. To fully explore penitential investigations based...

10.1016/j.mtener.2018.12.004 article EN cc-by-nc-nd Materials Today Energy 2018-12-31

Abstract Work function strongly impacts the surficial charge distribution, especially for metal‐support electrocatalysts when a built‐in electric field (BEF) is constructed. Therefore, studying correlation between work and BEF crucial understanding intrinsic reaction mechanism. Herein, we present Pt@CoO x electrocatalyst with large difference (ΔΦ) strong BEF, which shows outstanding hydrogen evolution activity in neutral medium 4.5‐fold mass higher than 20 % Pt/C. Both experimental...

10.1002/ange.202116057 article EN Angewandte Chemie 2022-01-24

Abstract Electron tunneling devices attract attention due to their potential applications in integrated circuits, memories, and high‐frequency oscillators. However, limited works are devoted the optical control of electron processes. The main reason is low concentration photogenerated carriers concerning equilibrium values heavy‐doped regions. In this work, violet phosphorus (VP) with a unique bilayer tubular structure supplies an excellent platform for investigating mechanisms under photo...

10.1002/adom.202402720 article EN Advanced Optical Materials 2025-01-13

Abstract Large‐scale production of two‐dimensional (2D) materials still is a crucial point toward its practical applications. Violet phosphorus (VP) with wide bandgap accelerates and broadens the potential applications elemental in optoelectronics. Here, we demonstrate scalable solution‐processable violet flakes stably dispersed several solvents. The exfoliated VP exhibit thickness‐dependent visible photoluminescence characteristics, which covers shortcoming black phosphorus. Meanwhile,...

10.1002/smm2.1037 article EN SmartMat 2021-06-01

Two-dimensional (2D) layered black phosphorus (BP), with a direct band gap and high carrier mobility, has shown great potential for next generation electronics optoelectronics. However, 2D materials always show different thermal properties when compared to its bulk counterpart. Therefore, it is necessary understand the process of BP reveal natural physical properties. Herein, an atomic-scale microscopic spectroscopic study performed characterize degradation re-deposition solution-exfoliated...

10.1088/2053-1583/aa55b2 article EN 2D Materials 2017-01-11

Abstract Trionic effect is a vital excitonic physical phenomenon, which intensively affects the optical and optoelectronic properties of 2D materials. Violet phosphorus (VP) another allotrope elemental with robust photoluminescence (PL) emission in visible range. So far, experimental investigations behavior VP are quite scarce. Herein, evolution PL mechanism synthesized crystals against Ar + plasma exposure investigated emphasis on conversion from trion to exciton emission. The estimated...

10.1002/adom.202101538 article EN Advanced Optical Materials 2021-10-19

The electrochemical formation of liquid sulfur at room temperature on the basal plane MoS2 has attracted much attention due to high areal capacity and rapid kinetics lithium-liquid chemistry. However, is converted solid phase once it contacts crystals generated from edge MoS2. Thus, stable cannot be formed entire surface. Herein, we report generation hydrogen-annealed (H2-MoS2), even under harsh conditions large overpotentials low working temperatures. origins solely are revealed weakened...

10.1021/acsnano.2c04769 article EN ACS Nano 2022-08-24

<title>Abstract</title> The emergence of memristors offers a revolutionary solution for achieving in-memory computing at the hardware level. However, existing suffer from inherent channel materials damage during cyclical resistive switching, rendering excessive energy consumption and poor endurance. Herein we contribute an innovative Molecular Crystal Memristor, which representative material, Sb2O3, possesses unique molecular crystal structure where cages are interconnected via van der Waals...

10.21203/rs.3.rs-6067513/v1 preprint EN cc-by Research Square (Research Square) 2025-03-12

Polarity control of two-dimensional (2D) materials is great significance for high-performance electronics and optoelectronics. Organic molecules, with designable structures, provide an effective tool to precisely modulate the polarity of...

10.1039/d5tc00889a article EN Journal of Materials Chemistry C 2025-01-01

Electrical current manipulation of magnetization switching through spin-orbital coupling in ferromagnetic semiconductor (Ga,Mn)As Hall bar devices has been investigated. The efficiency the current-controlled is found to be sensitive orientation with respect crystalline axes. dependence spin-orbit effective magnetic field on direction and magnitude determined from shifts angle. We find that strain induced about three times as large Rashba our GaMnAs devices.

10.1063/1.4813085 article EN Applied Physics Letters 2013-07-08

A polymeric carbon nitride (g-C3N4) nanosheets/graphene hybrid phototransistor designed for the near-UV regime is reported. Efficient transfer of electrons from g-C3N4 to graphene observed under illumination. The devices show a responsivity in order 103 W−1 with large and reproducible photocurrent. found stable after storing ambient conditions more than 130 days. As service our authors readers, this journal provides supporting information supplied by authors. Such materials are peer reviewed...

10.1002/adom.201500662 article EN Advanced Optical Materials 2016-01-28

Two-dimensional (2D) metallic transition metal dichalcogenides (TMDs) exhibit fascinating quantum effects, such as charge-density-wave (CDW) and weak antilocalization (WAL) effect.Herein, low temperature synthesis of 1T phase VSe2 single crystals with thickness ranging from 3 to 41 nm by chemical vapor deposition (CVD) is reported.The shows a decreasing the CDW when decreased.Moreover, low-temperature magnetotransport measurements demonstrate linear positive non-saturating magnetoresistance...

10.1088/1361-6528/ab6478 article EN Nanotechnology 2019-12-20

It is still a great challenge to avoid the degradation of ultrathin black phosphorus (BP) since its discovery in 2014. Various methods have been explored stabilize properties BP through capping technology or chemical passivation. Besides, large metal–semiconductor contact resistance also one critical issues. The two problems hinder further development devices. Herein, we demonstrate that polymethyl methacrylate (PMMA) can not only enhance durability effectively and nondestructively, but tune...

10.1088/2053-1583/aafd3c article EN 2D Materials 2019-01-10

The construction of 0D/3D Cs 4− x K PbBr 6 /CsPbBr 3 perovskite heterostructure facilitates efficient radiative recombination in the 3D phase. As a result, EQE PeLEDs increased from 2.1% to 12.8%.

10.1039/d1tc03611d article EN Journal of Materials Chemistry C 2021-01-01
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