Junkun Wang

ORCID: 0000-0003-2275-6557
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Advanced Photocatalysis Techniques
  • TiO2 Photocatalysis and Solar Cells
  • Structural Response to Dynamic Loads
  • High-Velocity Impact and Material Behavior
  • Semiconductor materials and devices
  • Gold and Silver Nanoparticles Synthesis and Applications
  • Structural Behavior of Reinforced Concrete
  • Ga2O3 and related materials
  • Nanowire Synthesis and Applications
  • Chalcogenide Semiconductor Thin Films
  • Graphene research and applications
  • Spectroscopy and Laser Applications
  • Structural Analysis and Optimization
  • Biosensors and Analytical Detection
  • Polydiacetylene-based materials and applications
  • Quantum optics and atomic interactions
  • Random lasers and scattering media
  • Quantum Dots Synthesis And Properties
  • Electronic and Structural Properties of Oxides
  • Transition Metal Oxide Nanomaterials
  • Fire effects on concrete materials
  • Neural Networks and Reservoir Computing
  • Advanced Nanomaterials in Catalysis
  • Nanoparticles: synthesis and applications
  • Microplastics and Plastic Pollution

South China University of Technology
2023-2024

Shandong Normal University
2023-2024

Beijing University of Technology
2023

Northeastern University
2021

This Z-scheme heterostructure forms strong In–O bonds under light, driving the electrons of InN to combine with holes PM6, thus inhibiting charge recombination. The optimized device exhibits excellent PEC performance and photochemical stability.

10.1039/d3ta04656g article EN Journal of Materials Chemistry A 2023-01-01

The accurate detection of nanoplastics is crucial due to their harmful effects on the environment and human beings. However, there a lack methods for smaller than 50 nm. In this research, we successfully constructed an Ag/CuO nanowire (NW)/BaTiO3@Polyvinylidene fluoride (PVDF) Bowl-shaped substrate with nanowire-in-Bowl-shaped piezoelectric cavity structure that can modulate surface-enhanced Raman scattering (SERS) by effect virtue tip CuO NW light focusing cavity. Due its unique...

10.1364/oe.480898 article EN cc-by Optics Express 2023-01-13

Abstract The extremely poor solution stability and massive carrier recombination have seriously prevented III–V semiconductor nanomaterials from efficient stable hydrogen production. In this work, an anodic reconstruction strategy based on group active semiconductors is proposed for the first time, resulting in 19‐times photo‐gain. What matters most that device after shows very superior under protracted photoelectrochemical (PEC) test over 8100 s, while final photocurrent density does not...

10.1002/smll.202400096 article EN Small 2024-03-22

In this paper, C-doped TiO<sub>2</sub> nanotubes were prepared in one-step by adding sucrose to water-assisted crystallization solution. The photocatalytic activity was obviously enhanced due the decrease of energy band gap after doping.

10.1039/d1ce00288k article EN CrystEngComm 2021-01-01

Majority of progressive collapse incidents concrete flat plate structures were caused by slab overloading in the form punching shear failure at a slab-column joint, which exhibit distinctive resistance mechanism from those triggered column losses. Relevant studies on scenario are scarce. To fill this gap research and to broaden perspective different modes, an experimental test was conducted 1/3-scale 2 × 2-bay substructure specimen applying increased downward uniform load slab, until...

10.1016/j.engstruct.2023.116506 article EN cc-by-nc-nd Engineering Structures 2023-06-28

With the increasing emphasis on atmospheric environmental protection, it is crucial to find an efficient, direct, and accurate method identify pollutant species in atmosphere. To solve this problem, we designed prepared cascade multicavity (CMC) structure composed with silver nanoparticles (Ag NPs) as a surface-enhanced Raman scattering (SERS) substrate favorable light transmittance flexibility. The distributed surface introducing homogeneous connecting holes endows more fully utilize...

10.1021/acs.jpclett.4c00087 article EN The Journal of Physical Chemistry Letters 2024-02-21

To enhanced photocatalytic activity of TiO2 nanotubes, graphene was transferred on the surface nanotubes by wet transfer method. The results showed that introduction reduced band gap composites and inhibited recombination photoinduced electrons holes. Therefore, degradation rate graphene/TiO2 is about 44% higher than nanotubes. It proved holes play an important role in process methylene blue trapping experiments. This work provides a new pathway for preparing semiconducting based catalysts...

10.1080/1536383x.2021.1960510 article EN Fullerenes Nanotubes and Carbon Nanostructures 2021-07-31

Random lasers have attracted much attention in recent years owing to their advantages of a simple fabrication process, low processing cost, and material flexibility for any lasing wavelengths. They provide roadmap the design ultra-bright lighting, displays, etc. However, threshold reduction random nanolasers remains challenge practical applications. In this work, lower-threshold laser action from monolayer molybdenum disulfide film-encapsulated Au nanoparticles (MoS2/Au NPs) is demonstrated....

10.3390/photonics11020168 article EN cc-by Photonics 2024-02-09

GaAs heterojunction solar cells are known as promising substitutions for traditional their low cost and performance potential. Nevertheless, the further enhancement is hindered by insufficient spectral absorption nonradioactive recombination. In this work, an InP quantum dot (QD) modified GaAs/PEDOT:PSS cell designed to enhance spectrum utilization suppress carriers loss efficiency at 15.08% achieved. Furthermore, QDs used in work synthesized a novel hydrothermal method. During synthesis...

10.1021/acs.nanolett.4c02861 article EN Nano Letters 2024-09-20
Coming Soon ...