A5100688437- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Microwave Dielectric Ceramics Synthesis
- Acoustic Wave Resonator Technologies
- Magnetic and transport properties of perovskites and related materials
- ZnO doping and properties
- Electronic and Structural Properties of Oxides
- Diamond and Carbon-based Materials Research
- Thin-Film Transistor Technologies
- Carbon Nanotubes in Composites
- Graphene research and applications
- Semiconductor materials and devices
- Conducting polymers and applications
- Magnetic properties of thin films
- 2D Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Dielectric properties of ceramics
- Photonic and Optical Devices
- Transition Metal Oxide Nanomaterials
- Parkinson's Disease Mechanisms and Treatments
- Magnetic Properties and Applications
- Advanced Photocatalysis Techniques
- Advanced Condensed Matter Physics
National Cheng Kung University
2016-2025
National Engineering Research Center of Electromagnetic Radiation Control Materials
2025
University of Electronic Science and Technology of China
2025
Taipei Medical University Hospital
2017-2025
Kunming Medical University
2025
Sun Yat-sen University
2013-2024
National Formosa University
2018-2024
National Taipei University of Technology
2010-2024
Yuan Ze University
2021-2024
Research Center for Environmental Changes, Academia Sinica
2024
We present a promising technology for nonvolatile flexible electronic devices: A direct fabrication of epitaxial lead zirconium titanate (PZT) on mica substrate via van der Waals epitaxy. These single-crystalline ferroelectric PZT films not only retain their performance, reliability, and thermal stability comparable to those rigid counterparts in tests memory elements but also exhibit remarkable mechanical properties with robust operation bent states (bending radii down 2.5 mm) cycling (1000...
Highly uniform Fe3O4/SiO2 core/shell nanoparticles functionalized by phosphorescent iridium complexes (Ir) have been strategically designed and synthesized. The Fe3O4/SiO2(Ir) nanocomposite demonstrates its versatility in various applications: the magnetic core provides capability for resonance imaging great enhancement of spin-orbit coupling complex makes it well suited labeling simultaneous singlet oxygen generation to induce apoptosis.
We investigate the morphological and performance of organic photovoltaics based on blended films alternating poly(thiophene–phenylene–thiophene) [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM). The resulting fine-scale phase separation leads to enhanced highest power efficiency (6.4% under AM 1.5G (100 mW cm−2)) when we use solvent annealing process.
In this work, switching dynamics of poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)] copolymer films are investigated over unprecedentedly wide ranges temperature and electric field. Remarkably, domain obeys well the classical nucleation growth model although origin ferroelectricity in organic ferroelectric materials inherently differs from inorganic counterparts. A lower coercivity limit 50 MV/m 180° wall energy 60 mJ/m(2) determined for P(VDF-TrFE) films. Furthermore, we discover...
In any gamma-ray detector, each event produces electrical signals on one or more circuit elements. From these signals, we may wish to determine the presence of an interaction; whether multiple interactions occurred; spatial coordinates in two three dimensions at least primary total energy deposited that interaction. We also want compute listmode probabilities for tomographic reconstruction. Maximum-likelihood methods provide a rigorous and some senses optimal approach extracting this...
Interest in bringing p- and n-type monolayer semiconducting transition metal dichalcogenides (TMD) into contact to form rectifying pn diode has thrived since it is crucial control the electrical properties two-dimensional (2D) electronic optoelectronic devices. Usually this involves vertically stacking different TMDs with heterojunction or, laterally manipulating carrier density by gate biasing. Here, utilizing a locally reversed ferroelectric polarization, we manipulate created WSe2...
Abstract A new series of quadrupolar type two‐photon absorption (2PA) chromophores 3 – 9 bearing a core arylamine‐[ , c ]phenazine‐arylamine motif are synthesized in high yields. Palladium‐catalyzed Stille coupling and CN reactions utilized to prepare target chromophores. Detailed characterization systematic studies these molecules, including fluorescence emission, conducted. These compounds found exhibit very large 2PA cross section values, for example, ∼7000 GM at 800 nm 8 toluene....
Using a combination of piezoresponse force microscopy (PFM) and phase-field modeling, we demonstrate ubiquitous formation center-type possible ferroelectric closure domain arrangements during polarization switching near the ferroelastic walls in (100) oriented rhombohedral BiFeO3. The these topological defects is determined from vertical lateral PFM data confirmed reversible changes surface topography. These observations provide insight into mechanisms tip-induced control suggest that defect...
Magnetoelectric nanocomposites have been a topic of intense research due to their profound potential in the applications electronic devices based on spintronic technology. Nevertheless, spite significant progress made growth high-quality nanocomposite thin films, substrate clamping effect still remains major hurdle realizing ultimate magnetoelectric coupling. To overcome this obstacle, an alternative strategy fabricating self-assembled ferroelectric-ferrimagnetic bulk heterojunction flexible...
A bimorph composed of ferrimagnetic cobalt ferrite (CoFe2O4, CFO) and flexible muscovite was fabricated via van der Waals epitaxy. The combination X-ray diffraction transmission electron microscopy conducted to reveal the heteroepitaxy CFO/muscovite system. robust magnetic behaviors against mechanical bending were characterized by hysteresis measurements force microscopy, which maintain a saturation magnetization (Ms) ∼120–150 emu/cm3 under different states. large magnetostrictive response...
Abstract Diamagnetic oxides can, under certain conditions, become ferromagnetic at room temperature and therefore are promising candidates for future material in spintronic devices. Contrary to early predictions, doping ZnO with uniformly distributed magnetic ions is not essential obtain samples. Instead, the nanostructure seems play key role, as ferromagnetism was also found nanograined, undoped ZnO. However, origin of primarily non–magnetic like still unexplained a controversial subject...
Spintronics has captured a lot of attention since it was proposed. It been triggering numerous research groups to make their efforts on pursuing spin-related electronic devices. Recently, flexible and wearable devices are in high demand due outstanding potential practical applications. In order introduce spintronics into the realm devices, we demonstrate that is feasible grow epitaxial Fe3O4 film, promising candidate for realizing spintronic based tunneling magnetoresistance, muscovite. this...
Female patients present with unique physiological and behavioral characteristics compared to male patients. The aim of this study was investigate compare the injury patterns, characteristics, mortality female hospitalized for treatment motorcycle accident-related trauma in a level I center.Retrospective analysis motorcycle-related injuries from Trauma Registry System performed identify 4028 2919 between January 1, 2009 December 31, 2013.The were younger, less often drunken, more wore...
Manipulating electronic polarizations such as ferroelectric or spin has recently emerged an effective strategy for enhancing the efficiency of photocatalytic reactions. This study demonstrates control modulated by and magnetic approaches within a two-dimensional (2D) layered crystal copper indium thiophosphate (CuInP2S6) to boost reduction CO2. We investigate substantial influence polarization on CO2 efficiency, utilizing ferroelectric-paraelectric phase transition alignment through...
We estimate the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer by using a quark-parton representation of virtual Compton scattering. thus can relate amplitude generalized parton distributions which also enter in other wide-angle processes. find that interference one- and is able substantially resolve difference between electric form factor measurements from Rosenbluth polarization experiments. Two-photon has additional consequences could be...
Micro-Raman measurements of xBa(Mg1/3Ta2/3)O3–(1−x)Ba(Mg1/3Nb2/3)O3 perovskite ceramics, with x=0, 0.25, 0.50, 0.75, and 1.0, were taken at room temperature. Raman results clearly show the 1:2 ordered structures these compounds. Four A1g five Eg modes unambiguously assigned. The A1g(O) phonon oxygen-octahedron stretch mode, which possesses largest energy width all observed phonons, significantly influences microwave dielectric properties materials. A higher vibration frequency mode in a...