A5008490600- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Advanced Memory and Neural Computing
- Ferroelectric and Piezoelectric Materials
- Acoustic Wave Resonator Technologies
- Dielectric materials and actuators
- Semiconductor materials and devices
- Nanofabrication and Lithography Techniques
- Neuroscience and Neural Engineering
- Ferroelectric and Negative Capacitance Devices
- Advancements in Semiconductor Devices and Circuit Design
- Multiferroics and related materials
- Advanced Photocatalysis Techniques
- Advanced Fiber Laser Technologies
- Transition Metal Oxide Nanomaterials
- Covalent Organic Framework Applications
- Thin-Film Transistor Technologies
- Biochemical and Structural Characterization
- Adhesion, Friction, and Surface Interactions
- Catalytic Processes in Materials Science
- TiO2 Photocatalysis and Solar Cells
- Perovskite Materials and Applications
- Iron oxide chemistry and applications
- Carbon Nanotubes in Composites
State Key Laboratory of Transducer Technology
2023-2025
Shanghai Institute of Microsystem and Information Technology
2023-2025
Chinese Academy of Sciences
2023-2024
Fudan University
2004-2023
Soochow University
2013-2019
Suzhou Vocational Institute of Industrial Technology
2016-2018
Suzhou Research Institute
2015
National University of Singapore
2009-2010
Reliable and reproducible resistive switching behaviors were observed in graphene oxide (GO) thin films prepared by the vacuum filtration method. The Cu/GO/Pt structure showed an on/off ratio of about 20, a retention time more than 104 s, threshold voltages less 1 V. effect could be understood considering desorption/absorption oxygen-related groups on GO sheets as well diffusion top electrodes. Our experiments indicate that is potentially useful for future nonvolatile memory applications.
Resistive memory effect has been found in carbon nanostructure-based devices by Standley et al. [Nano Lett. 8, 3345 (2008)]. Compared to nanostructures, hydrogenated amorphous (a-C:H) much more controllable preparation processes. Study on a-C:H-based is of great significance applications carbon-based electronic devices. We observed nonvolatile resistance behaviors metal/a-C:H/Pt structures with device yield 90%, ON/OFF ratio >100, and retention time >105 s. Detailed analysis...
The physical properties of polymers strongly depend on the molecular or supermolecular order and orientation. Here we demonstrate preferential orientation lamellar crystals enhancement ferro/piezoelectric in individual poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-TrFE)) nanowires fabricated from anodic alumina oxide (AAO) templates. crystallographic a axis P(VDF-TrFE) was found to be aligned along long due geometrical confinement grapho-expitaxial growth. alignment crystallization...
Adjusting the local coordination environment of single-atom electrocatalysts is a viable way to improve catalytic performance. The diversity geometric structures limited traditional in-plane configuration, with only little consideration paid out-of-plane configurations due lack suitable carriers and fabrication methods. This study reports Co-based catalysts mediated by conjugated bipyridine-rich covalent organic framework (COF). bipyridine nitrogen on COF layer backbone these serves as...
ConspectusPolymer-based organic field-effect transistors (OFETs) have attracted great attention owing to their significantly improved performance and the recently emerged prospects for broad applications. The charge carrier mobility of polymer-based OFETs has been from 10–5 more than 10 cm2 V–1 s–1 over past three decades. With close or higher that amorphous silicon, application fields extended sensing logic drive circuits. During OFET operation, carriers are successively injected in then...
ABSTRACT Organic field‐effect transistors (OFETs), with their potential for low‐cost manufacturing and compatibility flexible substrates, have emerged as an indispensable element in next‐generation electronics. However, the existing OFETs are significantly hindered by lack of reconfigurability multifunctionality application complex electronic systems. To address these limitations, we propose a novel design strategy to develop dual‐gate organic transistor (DG‐OFET), primarily featuring...
Abstract Intrinsically stretchable semiconducting polymers are promising candidates for developing wearable electronics, but remain underdeveloped because the correlation between microstructural evolution during stretching and resultant charge transport is not clearly understood. In this study, we clarify impact of molecular orientation on dynamic performance stretched polymers, controlling orientations via solvent-dependent spin-coating. We found that strain-enhanced electrical feasible by...
Nanoimprinting has been well explored to create nanostructures and induce molecular orientation in conjugated polymer thin films. We demonstrate here that large area poly(3-hexylthiophene) (P3HT) nanopillar arrays can be fabricated by a simple, cost-effective nanoimprinting method solvent-swollen plasticized state at room temperature. In addition, the solvent-assistant room-temperature induces face-on chain alignment P3HT nanopillars; i.e., π–π stacking of is aligned normal substrate,...
Spontaneous ferroelectric topological domains are observed in epitaxial BFO films using PFM. The uniform arrays of centre domain structures and their reversible switching realized utilizing PFM tip-fields assisted by the mobile charges.
The correlation between hierarchical structures and polarization switching in ferroelectric poly(vinylidene fluoride-ran-trifluoroethylene) has been probed by combining transmission electron microscopy studies with piezoresponse force observations. Differences are demonstrated homogeneous anisotropic thin films well-defined lamellar orientation, the later exhibiting quadrangular domain shape double hysteresis. We propose that within lamella is dominated wall flow motion, while amorphous...
Abstract The molecular packing and resultant charge transport behaviors of semiconducting polymers are widely known to be temperature‐dependent. Due the limitation measurement methods, previous studies on behavior have been mainly focused a very limited temperature range, therefore cannot support understanding behaviors. In this study, with homemade temperature‐dependent grazing incidence XRD chamber, relationship between structure properties diketopyrrolopyrrole‐based is investigated across...
We develop a solvent-assisted room temperature nanoimprint lithography (SART-NIL) technique to fabricate an ideal active layer consisting of poly(3-hexylthiophene) nanopillar arrays surrounded by [6,6]-phenyl-C61-butyric acid methyl ester. Characterization scanning electron microscopy, two-dimensional grazing incidence wide angle X-rays diffraction, and conducting atomic force microscopy reveals that the SART-NIL can precisely control size P3HT arrays. With decrease in diameters arrays,...
The simulation of neurotransmitter transmission in the biological nervous system holds great potential for next generation implantable neurological devices. Two challenges are (1) fabrication synaptic devices with selectivity to neurotransmitters artificial reflex arcs and (2) direct construction biocompatible interfaces between tissues form biofeedback. Herein, we report a flexible biohybrid motor biofeedback inspired by neuromuscular acetylcholine (ACh). Biocompatible built seeding cells...
Controlling functionalities, such as magnetism or ferroelectricity, by means of oxygen vacancies (${V}_{\mathrm{O}}$) is a key issue for the future development transition-metal oxides. Progress in this field currently addressed through ${V}_{\mathrm{O}}$ variations and their impact on mainly one order parameter. Here we reveal mechanism tuning both ferroelectricity simultaneously using ${V}_{\mathrm{O}}$. Combining experimental density-functional theory studies...
Silk fibers featuring exceptional mechanical strength and high extensibility are composed of fibril bundles with diameters in the range 20–150 nm. Regeneration silk similar superstrong properties from reconstituted protein remains a challenge because controlled self-assembly macromolecular components on nanoscale is required. The nanoconfined geometry investigated this study. Using template-filling method, cylindrical nanofibers fabricated for different within nanopores (50–120 nm) anodic...
Solvent-assistant room-temperature nanoimprinting lithography is used to fabricate field effect transistors composed of nanostrip arrays as active channels. The nanostrips comprise highly ordered nanocrystalline diketopyrrolopyrrole–polymer lamellae, in which the b-axis aligned essentially parallel long axis nanostrips. charge mobility increased by a factor 20, compared those homogeneous thin films. As service our authors and readers, this journal provides supporting information supplied...
A new n-type organic semiconductor (DFA4) that features a fully-fused tetradecyl cyclic π-backbone was designed and synthesized. OFET OPV devices based on DFA4 were fabricated characterized, respectively.
A Fe2O3 wrapped CuFeO2 layer structure was fabricated on ITO glass by electrophoretic deposition and sol-gel methods at 400 °C. Such low fabrication temperature avoids the damage of glass's transparency conductivity. The FeCl3 gel penetrated through enhanced connection conductivity between particles CuFeO2/ITO interface. Pt were decorated surface a photoreduction method to improve PEC performance. inserted thin also worked as buffer layer, which removed upward barrier interface improved activity.
This article reports on using atomic force microscopy to investigate the structure and switching of ferroelectric domains nanodot arrays. High‐density arrays epitaxial discrete nanodots are fabricated by template‐assisted tailoring thin films. Furthermore, measurement vectorial polarization distribution is conducted, which helps identify four topological domain states. In addition convergent divergent states with upward downward polarization, double‐center triple‐center identified. Thus,...
Abstract Highly aligned aggregation state structures have great significance for effective charge‐carrier transport in organic semiconductors. Several methods been developed to provide semiconducting molecules with highly oriented structure; among these, using a water surface form semiconductor films is widely implemented strategy, wherein solutions are spread on the of water. However, common techniques film formation surfaces generally result nonuniform orientation owing isotropic process...
We present a systematic study of high-order harmonic generation (HHG) from helium ion with the initial state prepared as coherent superposition electronic ground and an excited state. As result, conversion efficiency spectrum is significantly enhanced. When we add static electric field in fundamental field, supercontinuum region distinctly extended isolated 100 pulse can be generated. Moreover, use spatial nonhomogeneous to increase cutoff energy spectrum, which about 700 eV, 50 obtained...