A5086596126- Ferroelectric and Piezoelectric Materials
- Advanced Sensor and Energy Harvesting Materials
- Dielectric materials and actuators
- Multiferroics and related materials
- Optical measurement and interference techniques
- Innovative Energy Harvesting Technologies
- Traditional Chinese Medicine Analysis
- Advanced Measurement and Metrology Techniques
- Acoustic Wave Resonator Technologies
- Image Processing Techniques and Applications
- Plant-based Medicinal Research
- Acoustic Wave Phenomena Research
- Magnetic and transport properties of perovskites and related materials
- Shape Memory Alloy Transformations
- Advanced Algorithms and Applications
- Perovskite Materials and Applications
- Metamaterials and Metasurfaces Applications
- Advanced Materials and Mechanics
- 3D Surveying and Cultural Heritage
- Microwave Dielectric Ceramics Synthesis
- Advanced MEMS and NEMS Technologies
- Tactile and Sensory Interactions
- Reliability and Maintenance Optimization
- Drug Solubulity and Delivery Systems
- Piezoelectric Actuators and Control
Zhengzhou University
2024-2025
University of Science and Technology Beijing
2023-2024
Peking University
2017-2024
Shenzhen University
2024
Anyang Eye Hospital
2023
Beihua University
2023
Shuozhou Central Hospital
2022
Luoyang Normal University
2021
State Council of the People's Republic of China
2019
General Hospital of Shenyang Military Region
2018
Abstract Piezoelectric actuators are unique driving force‐generation devices, which can transfer input electric energy into force, displacement, or movement outputs efficiently and precisely via piezoelectric effect‐based electromechanical coupling instead of electromagnetic induction. In comparison with traditional actuators, the most important features their compact size, flexible design, ability to provide nanometer sub‐micrometer positioning. Here, recent progress in nonresonance...
Bulk‐magnetoelectric (ME) composites consisting of various piezoelectric and piezomagnetic materials with (3‐0), (3‐1), (2‐2), (2‐1) connectivity are proposed in a bid to realize strong ME coupling for next‐generation electronic‐device applications. Here, 1D (1‐1) [011]‐oriented Pb(Mg,Nb)O 3 ‐PbTiO (PMN‐PT) single‐crystal fiber laminated laser‐treated amorphous FeBSi alloy (Metglas) operating L‐T mode (longitudinally magnetized transversely poled) reported, which exhibit an enhanced resonant...
A 3D-printed multilayer copolymer rugby ball-structured energy harvester is prepared, and a high peak output power of 16.4 mW cm<sup>−2</sup> obtained.
The relationship between the aggregation states of pyrene-based linkers and photoluminescence/photoelectric performance was well studied by formation an anionic metal-organic framework, [BMI]2[Mg3(TBAPy)2(H2O)4]·2dioxane, which shows highly enhanced light-harvesting photoelectric conversion efficiency encapsulation D-π-A cation dyes.
We present a T-shaped MME-EH that enables collaborative twisting or bending operation modes for tridimensional responses. The device produces peak–peak output power of 98.5 mW at 60 Hz, which is 262% higher than the state-of-the-art results.
Designing topological and geometrical structures with extended unnatural parameters (negative, near-zero, ultrahigh, or tunable) counterintuitive properties is a big challenge in the field of metamaterials, especially for relatively unexplored materials multiphysics coupling effects. For natural piezoelectric ceramics, only five nonzero elements matrix exist, which has impeded design application devices decades. Here, we introduce methodology, inspired by quasi-symmetry breaking, realizing...
Abstract It is desired to obtain a piezoceramic with high piezoelectric coefficient and low dielectric loss simultaneously for energy harvester application. Herein, it reported that the 0.025Pb(Mn 1/3 Nb 2/3 )O 3 ‐0.525Pb(Ni ‐0.135PbZrO ‐0.315PbTiO (PMNN‐PZT) ceramic exhibits superior charge parameter e 33 of 37.74 pC m −2 tanδ 0.45%. Furthermore, PMNN‐PZT ceramic‐based magneto‐mechano‐electric coupled (MMEC‐EH) varying‐stiffness cantilever designed fabricated, which shows strong...
Lead-free dielectric ceramics with excellent energy-storage performance are crucial to the development of next-generation advanced pulse power capacitors. However, low density limits evolution capacitors toward lightweight, miniaturization, and integration. Here, an effective strategy constructing highly dynamic polarization heterogeneous nanoregions is proposed in lead-free relaxors realize ultrahigh ≈8.0 J cm-3 , making almost ten times growth compared pure Bi0.5 Na0.5 TiO3 ceramic,...
Piezoelectric ceramic devices, which utilize multifarious vibration modes to realize electromechanical coupling and energy conversions, are extensively used in high-technological fields. However, the excitation of basic is mainly subjected natural eigenfrequency related structure material parameters. Herein, inspired by metamaterial theory, a programmable, 3D ordered with piezoceramic strain units (3D OSPSU) developed artificially generate broad frequency band other than only narrow...
Continual precision actuations with nanoscale resolution over large ranges have extensive requirements in advanced intelligent manufacturing and precise surgical robots. To produce continual nanostep motion, conventionally, multiple pairs of piezo-actuators are employed to operate inchworm principle under complex three- or four-phase timing signal drive. Inspired by the idea ordered structures functional units, a much simpler piezoelectric actuator consisting (2 × 2) arrayed, cofired...
Achieving ultrahigh-color-purity circularly polarized luminescence (CPL) in low-dimensional chiral perovskites is challenging due to strong electron–phonon coupling caused by lead halide octahedral distortion. Herein, the piezoluminescence behaviors of six novel perovskites, (S/R-3-XPEA)2PbBr4 (PEA = phenethylamine; X F, Cl, Br), were systematically investigated. Upon compression, (S/R-3-ClPEA)2PbBr4 exhibits significant piezofluorochromic behaviors, transforming from yellow CPL deep-blue...
Fast actuation with nanoprecision over a large range has been challenge in advanced intelligent manufacturing like lithography mask aligner. Traditional stacked stage method works effectively only local, limited range, and vibration coupling is also challenging. Here, we design dual mechanism multimodal linear actuator (DMMLA) consisted of piezoelectric electromagnetic costator coslider for producing macro-, micro-, nanomotion, respectively. A DMMLA prototype fabricated, each working mode...
In this work, we theoretically and experimentally report a NdFeB magnet/piezoelectric composite cantilever with varying stiffness for enhancing magneto-mechano-electric (MME) coupling under weak AC magnetic field Hac excitation. Measurement results show that the MME can produce relatively high peak-peak output power of 12.8 mW current 0.735 mApp = 7 Oe at resonance frequency 36 Hz. Even when is as low 0.2 Oe, equivalent to level earth field, it still drive 4 LED lighting. The obtained are...
There have been active studies on optimized dithering techniques to improve 3D shape measurement quality with image sensor and defocusing projector. These can be classified into intensity-based optimization technology phase-based technology. However, those methods are sensitive the amount of while cannot reduce phase errors efficiently. This paper presents an framework. framework combines structural similarity index intensity residual error optimization. By applying this patches tiling best...