Wei Lei

ORCID: 0000-0001-5532-7252
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About
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Research Areas
  • Carbon Nanotubes in Composites
  • Quantum Dots Synthesis And Properties
  • Perovskite Materials and Applications
  • ZnO doping and properties
  • Graphene research and applications
  • Semiconductor materials and devices
  • Ga2O3 and related materials
  • Advanced Sensor and Energy Harvesting Materials
  • Chalcogenide Semiconductor Thin Films
  • Gas Sensing Nanomaterials and Sensors
  • Nanowire Synthesis and Applications
  • Diamond and Carbon-based Materials Research
  • Conducting polymers and applications
  • Advanced Photocatalysis Techniques
  • Nanotechnology research and applications
  • Mechanical and Optical Resonators
  • Surface Modification and Superhydrophobicity
  • Electron and X-Ray Spectroscopy Techniques
  • Solid-state spectroscopy and crystallography
  • Plasma Diagnostics and Applications
  • TiO2 Photocatalysis and Solar Cells
  • Organic Light-Emitting Diodes Research
  • Integrated Circuits and Semiconductor Failure Analysis
  • Thin-Film Transistor Technologies
  • Nonlinear Partial Differential Equations

Yunnan University
2023-2025

Second Affiliated Hospital of Nanjing Medical University
2025

Second Affiliated Hospital of Zhengzhou University
2025

Jiangsu Cancer Hospital
2025

Southeast University
2015-2024

The Central Hospital of Enshi Tujia and Miao Autonomous Prefecture
2022-2024

Pingdingshan University
2024

Nanyang Technological University
2024

Southwest Jiaotong University
2018-2024

Anvil Semiconductors (United Kingdom)
2024

Quantum dot (QD) light-emitting diodes (LEDs) are a promising candidate for high-efficiency, color-saturated displays. This work reports on the size effect of sol–gel synthesized ZnO nanoparticles (NPs) in which sizes 2.9, 4.0, and 5.5 nm, were used as an electron transfer layer QLEDs. The NPs was estimated by transmission microscopy (TEM) its QLED performance investigated photoluminescence decay lifetime mobility NPs. It found that NP decreased from to 2.9 conductivity increased, whereby...

10.1021/acsphotonics.5b00267 article EN ACS Photonics 2016-01-22

Electronic skin (e-skin), mimicking the physical–chemical and sensory properties of human skin, is promising to be applied as robotic skins skin-attachable wearables with multisensory functionalities. To date, most e-skins are dedicated function development mimic in one or several aspects, yet advanced e-skin covering all hyper-attributes (including both properties) seldom reported. Herein, a water-modulated biomimetic hyper-attribute-gel (Hygel) reversible gel–solid transition proposed,...

10.1021/acsnano.2c09851 article EN ACS Nano 2023-01-11

For longevity in the market, manufacturers must strike a balance between monetary benefits and production capability. This article investigates distributed hybrid flowshop scheduling problem with deteriorating jobs, objective of minimizing makespan mean tardiness. A mathematical model for is constructed. To minimize goals, multi-objective discrete differential evolution (MODDE) method put forward. achieving optimization two-strategy initialization operation forth. local search strategy...

10.1080/0305215x.2024.2425724 article EN Engineering Optimization 2025-01-10

We describe a rapid, simple, room-temperature technique for the production of large-scale metallic thin films with tunable plasmonic properties assembled from size-selected silver nanoplates (SNPs). outline series ultrathin monolayer (8–20 nm) self-assembled on glass substrates in which localized surface plasmon resonance can be tuned over range 500 to 800 nm. It is found that peaks are strongly dependent size and refractive index surrounding dielectric. also shown bandwidth peak spectrum...

10.1021/nn203336m article EN ACS Nano 2011-09-28

The Gerchberg-Saxton (GS) algorithm is widely used to calculate the phase-only computer-generated hologram (CGH) for holographic three-dimensional (3D) display. However, speckle noise exists in reconstruction of CGH due uncontrolled phase distribution. In this paper, we propose a method suppress by simultaneously reconstructing desired amplitude and calculated using double-constraint GS algorithm, which both information are constrained image plane each iteration. can reconstruct 3D object on...

10.1364/ao.54.006994 article EN Applied Optics 2015-08-04

In this letter, we report an oleic acid (OA)-capped CdSe quantum-dot sensitized solar cell (QDSSC) with improved performance. The TiO2/OA-CdSe photoanode in a two-electrode device exhibited photon-to-current conversion efficiency of 17.5% at 400 nm. At AM1.5G irradiation 100 mW/cm2 light intensity, the QDSSCs based on OA-capped showed power about 1%. function OA was to increase QD loading, extend absorption range and possibly suppress surface recombination.

10.1063/1.3117221 article EN Applied Physics Letters 2009-04-13

A specially designed n‐type semiconductor consisting of Ca‐doped ZnO (CZO) nanoparticles is used as the electron transport layer (ETL) in high‐performance multicolor perovskite light‐emitting diodes (PeLEDs) fabricated using an all‐solution process. The band structure tailored via Ca doping to create a cascade conduction energy levels from cathode perovskite. This alignment significantly enhances conductivity and carrier mobility CZO ETL enables controlled injection, giving rise sub‐bandgap...

10.1002/adfm.201606874 article EN Advanced Functional Materials 2017-03-24

Although epitaxial growth is the fundamental method to realize lattice matched heterojunctions in electronics manufacturing, large-scale single crystal layers based on solution-processing have rarely been reported. Here, cascade organic–inorganic hybrid perovskite crystals with purity quotient over 99.9% consisting of chlorine, bromine, and iodine are fabricated by solution-processed growth, which mismatch rate between adjacent less than 1%. The area proved up 4 cm2, speed reaches nearly 100...

10.1021/acs.chemmater.9b05000 article EN Chemistry of Materials 2020-05-11

Benefiting from the double-crack structure, sensors show ultra-high sensitivity, a wide working range and great value in human–machine interaction.

10.1039/d3nr05476d article EN Nanoscale 2024-01-01

Wearable nonvolatile memory based on flexible materials has shown an unstoppable development trend in the field of portable artificial intelligence technology. In this work, electronic synapses carbon quantum dots (CQDs) synthesized by electrochemical exfoliation are exploited. The CQDs-based devices exhibit similar and stable current–voltage (I–V) characteristics to initial state after undergoing multiple bending, including I–V curves, retention characteristic for 100 h, endurance 106...

10.1021/acsmaterialslett.3c01258 article EN ACS Materials Letters 2024-02-02

Abstract BACKGROUND: Solid surfaces possessing both superhydrophobic and superoleophilic properties have attracted great interest for fundamental research potential application. However, fabrication of the reported is usually time‐consuming wetability could not be achieved to desired level in rugged environments. RESULTS: A hierarchical stainless steel mesh film comprising structures with three scales roughness was synthesized by a simple chemical bath deposition method. After being modified...

10.1002/jctb.2746 article EN Journal of Chemical Technology & Biotechnology 2011-11-18

We demonstrate a novel architecture of solar cell by incorporating graphene thin film in quantum dot sensitized cell. Quantum nanorods with layer exhibited 54.7% improvement comparing ZnO without layer. A fill factor as high ∼62% was also obtained.

10.1039/c1cc10162e article EN Chemical Communications 2011-01-01

We report an inverted and multilayer quantum dot light emitting diode (QLED) which boosts high efficiency by tuning the energy band alignment between charge transport layers. The electron layer (ETL) was ZnO nanoparticles (NPs) with optimized doping concentration of cesium azide (CsN3) to effectively reduce flow balance injection. This is virtue a 0.27 eV upshift ETL's conduction edge, inhibits quenching excitons preserves superior emissive properties dots due insulating characteristics...

10.1039/c7nr06248f article EN Nanoscale 2017-11-28

Recently, lead (Pb) halide hybrid perovskites have emerged as sensitive X‐ray detectors due to their desirable charge transport properties and high absorption of ionizing photons. This work reports on a facile methodology for fabrication highly efficient PIN diodes based MAPbBr 3 (MA, methylammonium; Pb, lead; Br, bromide) single crystals detect energies ranging from 30 100 keV. The 2 mm thickness diode exhibits low dark current density 20 nA cm −2 at 150 V −1 sensitivity 23.6 μC mGy air ....

10.1002/pssr.201800380 article EN physica status solidi (RRL) - Rapid Research Letters 2018-09-04

A highly efficient solution-processed QLED device with a doped HTL has been demonstrated by the modulation of hole transport.

10.1039/c7ra08302e article EN cc-by-nc RSC Advances 2017-01-01

White quantum dot light-emitting diodes (QD-LEDs) have been a promising candidate for high-efficiency and color-saturated displays. However, it is challenging to integrate various QD emitters into one device also obtain efficient blue QDs. Here, we report simply solution-processed white QD-LED using hybrid ZnO@TiO₂ as electron injection layer ZnCdSeS emitters. The emission obtained by integrating the yellow from generated layer. We show that performance of QD-LEDs can be adjusted controlling...

10.1038/srep04085 article EN cc-by Scientific Reports 2014-02-13

Bi2S3 and Sb2S3 nanoparticles were prepared by microwave irradiation of single-source precursor complexes in the presence ethylene glycol as a coordinating solvent. The as-synthesized characterized X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning (SEM) coupled with energy-dispersive (EDX), photoluminescence (PL), UV–vis near-infrared (NIR) spectroscopy. Their electrochemical potential was examined [Fe(CN)]4–/[Fe(CN)]3– cyclic square wave voltammetry (CV SWV)...

10.1021/acsomega.1c02249 article EN cc-by-nc-nd ACS Omega 2021-07-13
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