Lei Zhao

ORCID: 0000-0003-3416-2254
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About
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Research Areas
  • Advanced Sensor and Energy Harvesting Materials
  • ZnO doping and properties
  • High voltage insulation and dielectric phenomena
  • Conducting polymers and applications
  • Gas Sensing Nanomaterials and Sensors
  • Ga2O3 and related materials
  • 2D Materials and Applications
  • Advanced Photocatalysis Techniques
  • Quantum Dots Synthesis And Properties
  • Analytical Chemistry and Sensors
  • Power Transformer Diagnostics and Insulation
  • Electrostatic Discharge in Electronics
  • Perovskite Materials and Applications
  • Supercapacitor Materials and Fabrication
  • Tactile and Sensory Interactions
  • Dielectric materials and actuators
  • Photonic Crystal and Fiber Optics
  • Advanced Fiber Laser Technologies
  • Advancements in Battery Materials
  • Graphene research and applications
  • MXene and MAX Phase Materials
  • Copper-based nanomaterials and applications
  • Transition Metal Oxide Nanomaterials
  • Ionic liquids properties and applications
  • Photonic and Optical Devices

City University
2025

Henan University
2017-2024

Lanzhou City University
2024

Shanghai Ocean University
2023

Harbin University of Science and Technology
2009-2020

Institute of Process Engineering
2020

University of Science and Technology of China
2018

Southern University and Agricultural and Mechanical College
2016

Northeast Normal University
2008-2010

Carbon dioxide (CO2) is a detrimental greenhouse gas to the environment as main contributor global warming. However, development of efficient methods for CO2 absorption and separation still great challenge. Ionic liquids (ILs) have emerged promising solvents due negligible vapor pressure adjustable structures. In this work, new strategy that three superbase ILs are designed hydrogen bond acceptor (HBA) further combined with ethylene glycol (EG) donor (HBD) form novel IL-based deep eutectic...

10.1021/acssuschemeng.9b07128 article EN ACS Sustainable Chemistry & Engineering 2020-01-22

Perovskite light-emitting diodes (PeLEDs) are the next promising display technologies because of their high color purity and wide gamut, while two classical emitter forms, i.e., polycrystalline domains quantum dots, encountering bottlenecks. Weak carrier confinement large leads to inadequate radiative recombination, surface ligands on dots main annihilation sites for injected carriers. Here, pinpointing these issues, we screened out an amphoteric agent, namely, 2-(2-aminobenzoyl)benzoic acid...

10.1021/acsnano.3c11941 article EN ACS Nano 2024-03-08

The sliding-mode triboelectric nanogenerator (S-TENG) with grated structure has important applications in energy harvest and active sensors; however its concavo-convex leads to large frictional resistance abrasion. Here, we developed a S-TENG chemical group (S-TENG-CGG), which the layer's potential positive–negative alternating charged structure. layer of S-TENG-CGG was fabricated through reactive ion etching process metal shadow mask In etched region, nylon film, originally positively as...

10.1021/acsnano.7b02866 article EN ACS Nano 2017-08-23

Over the past decade, two-dimensional material MoS2 has attracted great attention due to its room temperature stability, high surface area-to-volume ratios, abundance of active sites at edges, and exceptional sensitivity environment, which are key characteristics for applications in chemical sensing. However, slow recovery ammonia (NH3) sensors based on materials restricted their further development. This paper presents a novel approach address this limitation by demonstrating monolayer...

10.1021/acsami.4c19870 article EN ACS Applied Materials & Interfaces 2025-03-06

Understanding the electrical transport properties of individual nanostructures is great importance to construction high-performance nanodevices. NiCo2O4 nanowires have been investigated widely as electrodes in electrocatalysis, supercapacitors, and lithium batteries. However, exact mechanism an nanowire still ambiguous, which obstacle for improving performance improvement energy storage devices. In this work, were prepared successfully by thermal transformation from CoNi-hydroxide...

10.1186/s11671-018-2844-3 article EN cc-by Nanoscale Research Letters 2019-01-08

Two-dimensional transition metal dichalcogenides (2D-TMDs) possess appropriate bandgaps and interact via van der Waals (vdW) forces between layers, effectively overcoming lattice compatibility challenges inherent in traditional heterojunctions. This property facilitates the creation of heterojunctions with customizable bandgap alignments. However, prevailing method for creating 2D-TMDs relies on low-efficiency technique mechanical exfoliation. Sb

10.3390/nano14100884 article EN cc-by Nanomaterials 2024-05-19

A photo-stimulated discharge (PSD) method is more effective than thermal methods to characterize the deep space charge traps in dielectric materials. In this paper, a new PSD measuring system was first built up based on optical parametric oscillator laser. The laser can generate continuously tunable wavelengths whose range are 210–420 nm and with average output pulse energy 2.3 mJ. overcomes shortcoming of weak past experiments, especially ultraviolet band. current spectra PET were measured...

10.1142/s0217984910024316 article EN Modern Physics Letters B 2010-07-20

We propose and demonstrate a Raman-assisted passively mode-locked Yb-doped fiber laser in normal dispersion regime. A section of highly nonlinear is adopted to enhance the nonlinearity extend bandwidth gain spectrum by stimulated Raman effect. The emits broad spectral 64nm at −20 dB level stable pulse operation with signal-to-noise ratio 77 dB.

10.1088/0256-307x/35/4/044201 article EN Chinese Physics Letters 2018-04-01

Photo-stimulated discharge (PSD) spectroscopy of polyester (PET), polypropylene (PP), polyimide (PI) DuPont charged by either corona or contact electrode were performed with self-made PSD measurement system in order to investigate the space charge traps polymers. The samples irradiated new type continuously tunable wavelength laser based on optical parametric oscillator (OPO) through semi-transparent electrode. Experimental results indicate that energy distribution varies different...

10.1109/icpadm.2009.5252305 article EN 2009-07-01

In this paper, a tunable metamaterial absorber (MMA) based on active frequency selective surface (FSS) is proposed, which can dynamically tune three absorption bands. The equivalent circuit model (ECM) was used to design the MMA and elucidate its mechanism of switchable absorption. By changing state PIN diode in lossy layer FSS layer, be tuned continuously. tuning bands from S- C-band achieved. numerical simulation results show that described achieve bandwidth 6.2 GHz between 1.86-2.70 GHz,...

10.13052/2024.aces.j.390709 article EN The Applied Computational Electromagnetics Society Journal (ACES) 2024-07-31
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