A5013458114- Ferroelectric and Piezoelectric Materials
- Multiferroics and related materials
- Electronic and Structural Properties of Oxides
- Advanced Photocatalysis Techniques
- Nanoplatforms for cancer theranostics
- Perovskite Materials and Applications
- Luminescence Properties of Advanced Materials
- Microwave Dielectric Ceramics Synthesis
- TiO2 Photocatalysis and Solar Cells
- Advanced Sensor and Energy Harvesting Materials
- Bone Tissue Engineering Materials
- Electrospun Nanofibers in Biomedical Applications
- Dielectric materials and actuators
- Magnetic and transport properties of perovskites and related materials
- Magnetic Properties and Synthesis of Ferrites
- Dielectric properties of ceramics
- Luminescence and Fluorescent Materials
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Gas Sensing Nanomaterials and Sensors
- Mesoporous Materials and Catalysis
- ZnO doping and properties
- Catalytic Processes in Materials Science
- Acoustic Wave Resonator Technologies
- Advanced Condensed Matter Physics
Zhejiang University
2015-2024
Zhejiang Lab
2021-2024
State Key Laboratory of Silicon Materials
2007-2023
Hangzhou Xixi hospital
2014-2020
State Key Laboratory of Crystal Materials
2020
Shandong University
2020
Hangzhou Academy of Agricultural Sciences
2014-2019
State Council of the People's Republic of China
2018-2019
University of Cambridge
2017
Singapore University of Technology and Design
2017
Therapeutic systems to induce reactive oxygen species (ROS) have received tremendous success in the research of tumor theranostics, but suffered daunting challenges limited efficacy originating from low presence reactants and reaction kinetics within cancer cells. Here, ferrous sulfide-embedded bovine serum albumin (FeS@BSA) nanoclusters, an amorphous nature, are designed synthesized via a self-assembly approach. In acidic conditions, nanoclusters degrade simultaneously release H2S gas Fe2+...
Ferroelectric materials hold great promise in the field of photocatalytic water splitting due to their spontaneous polarization that sets up an inherent internal for spatial separation photogenerated charges. The ferroelectric polarization, however, is generally accompanied by some intrinsic defects, particularly oxygen vacancies, whose impact upon photocatalysis far from being fully understood and modulated. Here, we have studied role vacancies over behavior single-domain PbTiO3 through a...
Single-crystalline nanorods and nanowires are grown using a hydrothermal system with the assistance of polymer additives. Tetragonal perovskite PbZr0.52Ti0.48O3 (see Figure) in presence poly(vinyl alcohol), while formed alcohol) poly(acrylic acid). The polymers absorbed on axial side particles, reducing surface energy inducing oriented growth.
In this work, single-crystalline α-FeOOH nanorods with a length of 400–700 nm and diameter 20–80 were successfully synthesized via facile template-free hydrothermal method. Single-crystalline mesoporous α-Fe2O3 Fe3O4 could be obtained from these precursors after calcining at 350 °C in air 500 nitrogen, respectively. The as-prepared exhibited large specific surface area porosity, effectively enhancing the electrochemical reaction accommodate strain during charge–discharge cycling process.
Abstract Topological structures based on controllable ferroelectric or ferromagnetic domain configurations offer the opportunity to develop microelectronic devices such as high-density memories. Despite increasing experimental and theoretical insights into various (such polar spirals, wave, vortex) over past decade, manipulating topological transformations of comprehensively understanding its underlying mechanism remains lacking. By conducting an in-situ non-contact bias technique, here we...
Room-temperature ferromagnetism has been observed in Fe-doped PbTiO3 nanocrystals. The magnetism of the nanocrystals develops from diamagnetism to and paramagnetism on increasing nominal Fe doping concentration 0to4mol%. Transmission electron microscope (TEM) high-resolution TEM data indicate that with size ∼100nm are organized form a planarlike self-assembly via oriented aggregation. These assembled nanostructures effectively improve room-temperature sample. exchange interaction ferric ions...
BiFeO 3 (BFO) nanoparticles were successfully synthesized by a hydrothermal method assisted mineralizer at as low temperature 200°C. The products characterized X‐ray powder diffraction, transmission electron microscope, and physical property measurement system. It was found that KNO played an important role in the formation of BFO nanoparticles, as‐synthesized showed enhanced ferromagnetism room temperature.
Free-standing single-crystal PbTiO3 nanoplates (see picture) were synthesized by a facile hydrothermal method. A “self-templated” crystal growth is presumed to lead the formation of nanoplates, which have ferroelectric single-domain structures, whose polarization areas can be manipulated writing and reading. The are also effective catalysts for oxidation carbon monoxide. Low-dimensional nanomaterials, such as nanowires1 nanotubes,2, 3 received extensive attention because their fascinating...
An ethanol solvothermal route has been developed to prepare ultrathin anatase TiO 2 nanosheets with dominant {001} facets (≈97%), a thickness of ≈2.5 nm, and side length ≈200 nm. The introduction solvent significantly enhances the content surface chemisorbed F − on nanosheet, which higher stability further lowers energy facets, giving rise large percentage active facets. Adopting well‐defined morphology, such loaded 1 wt% Pt exhibit an H evolution rate as high 17.86 mmol h −1 g ,...
Graphene, a very intriguing two-dimensional Dirac electronic system with high carrier mobility, is promising for spintronics. However, the long-range ferromagnetic order always absent in pristine graphene. Here we report fabrication and transport properties of graphene-$\mathrm{BiFe}{\mathrm{O}}_{3}$ heterostructures. It found that magnetic proximity effect results strong Zeeman splitting graphene exchange field up to hundreds tesla. The $\ensuremath{\nu}=0$ quantum Hall state further...
ConspectusSolar-driven photocatalytic water splitting paves a way to produce green hydrogen for building sustainable clean energy system, particularly within the framework of carbon-neutral initiative. However, date, solar-to-hydrogen (STH) conversion efficiency particulate photocatalysts falls far short demand over 10% industrial applications. Single-domain ferroelectric semiconductor materials with amazing unidirectional spontaneous polarization penetrating bulk are promising candidates as...
Abstract A large depolarization field in single‐domain PbTiO 3 is anticipated to drive the spatial separation of photogenerated charge carriers and enable potential active sites for photocatalytic overall water splitting reaction. However, negatively polarized surface usually cannot provide sufficient oxidation oxygen because lacking vacancies, inevitably hindering Here, ferroelectric polarization screening reconstructed by a heteroepitaxial SrTiO film on positively nanoplates generate...
Abstract For many decades, zero thermal expansion materials have been the focus of numerous investigations because their intriguing physical properties and potential applications in high-precision instruments. Different strategies, such as composites, solid solution doping, developed promising approaches to obtain materials. However, microstructure controlled behavior via interface or surface has not realized. Here we report observation an impressive (volumetric coefficient, −1.41 × 10 −6 K...
Implantable localized drug delivery systems (LDDSs) with intelligent functionalities have emerged as a powerful chemotherapeutic platform in curing cancer. Developing LDDSs rationally controlled release and real-time monitoring holds promise for personalized therapeutic protocols but suffers daunting challenges. To overcome such challenges, series of porous Yb3+/Er3+ codoped CaTiO3 (CTO:Yb,Er) nanofibers, specifically designed surface functionalization, were synthesized doxorubicin (DOX)...
The efficacy of dynamic therapy for solid tumors suffers daunting challenges induced by tumor hypoxia. Herein, we report a biocompatible nanosystem containing Fe(OH)3-modified upconversion nanoparticles (UCNPs) promoting synergetic chemo- and photodynamic with the modulation In this system, UCNPs convert 808 nm near-infrared excitation to visible photon energy, which stimulates chlorin-e6 photosensitizers generate toxic reactive oxygen species (ROS) consumption dissolved in cancer cells....
Surface oxygen vacancies have been widely discussed to be crucial for tailoring the activity of various chemical reactions from CO, NO, water oxidation by using oxide-supported catalysts. However, real role and potential function surface in reaction remains unclear because their very short lifetime. Here, it is reported that can well confined electrostatically a polarization screening near perimeter interface between Pt {111} nanocrystals negative polar (001) ferroelectric PbTiO3....
The composition in ferroelectric oxide films is decisive for optimizing properties and device performances. Controlling a distribution these by facile approach thus highly desired. In this work, we report solution epitaxy of PbZrxTi1−xO3 with continuous gradient Zr concentration, realized competitive growth at ~220 °C. These intriguing demonstrate frequency-independent dielectric permittivity below 100 kHz from room-temperature to 280 particular, the can be largely regulated 50 slightly...