A5052224896- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Advanced Memory and Neural Computing
- Advanced Sensor and Energy Harvesting Materials
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Perovskite Materials and Applications
- Organic Light-Emitting Diodes Research
- Advanced Thermoelectric Materials and Devices
- ZnO doping and properties
- Advanced Photocatalysis Techniques
- Semiconductor materials and devices
- Gas Sensing Nanomaterials and Sensors
- Thermal properties of materials
- Luminescence and Fluorescent Materials
- Nanowire Synthesis and Applications
- Copper-based nanomaterials and applications
- Photoreceptor and optogenetics research
- Neuroscience and Neural Engineering
- Molecular Junctions and Nanostructures
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Ferroelectric and Negative Capacitance Devices
- Thin-Film Transistor Technologies
- Porphyrin and Phthalocyanine Chemistry
City University of Hong Kong
2014-2024
University of Glasgow
2019-2024
Hong Kong University of Science and Technology
2024
Kowloon Hospital
2015-2019
Institute of Electrical and Electronics Engineers
2019
University of Hong Kong
2004-2015
City University of Hong Kong, Shenzhen Research Institute
2013-2015
MWT Materials (United States)
2015
State Key Laboratory of Millimeter Waves
2015
Institute of Molecular Functional Materials
2012-2013
Abstract ZnO tetrapod nanostructures have been prepared by the evaporation of Zn in air (no flow), dry and humid argon flow, nitrogen flow. Their properties investigated using scanning electron microscopy (SEM), X‐ray diffraction (XRD), photoluminescence (PL) excitation (PLE) spectroscopies (at different temperatures), paramagnetic resonance (EPR) spectroscopy at –160 °C room temperature. It is found that fabrication conditions significantly influence EPR PL spectra obtained. While a g =...
Abstract Flexible non‐volatile memories have attracted tremendous attentions for data storage future electronics application. From device perspective, the advantages of flexible memory devices include thin, lightweight, printable, foldable and stretchable. The flash memories, resistive random access (RRAM) ferroelectric memory/ferroelectric field‐effect transistor (FeRAM/FeFET) are considered as promising candidates next generation device. Here, we review general background knowledge on...
Photocatalytic degradation of toxic organic pollutants is a challenging tasks in ecological and environmental protection. Recent research shows that the magnetic iron oxide-semiconductor composite photocatalytic system can effectively break through bottleneck single-component semiconductor oxides with low activity under visible light recycling photocatalyst from final products. With high reactivity light, oxide-semiconductors be exploited as an important recovery (MRP) bright future. On this...
Abstract The in‐depth understanding of ions' generation and movement inside all‐inorganic perovskite quantum dots (CsPbBr 3 QDs), which may lead to a paradigm break through the conventional von Neumann bottleneck, is strictly limited. Here, it shown that formation annihilation metal conductive filaments Br − ion vacancy driven by an external electric field light irradiation can pronounced resistive‐switching effects. Verified field‐emission scanning electron microscopy as well...
The implementation of biocompatible and biodegradable information storage would be a significant step toward next-generation green electronics. On the other hand, benefiting from high density, multifunction, low power consumption multilevel data storage, artificial synapses exhibit attractive future for built-in nonvolatile memories reconstructed logic operations. Here, we provide comprehensive critical review on developments bio-memories with view to inspire more intriguing ideas this area...
Abstract Fingertip skin exhibits high sensitivity in a broad pressure range, and can detect diverse stimuli, including textures, temperature, humidity, etc. Despite adopting microstructures functional materials, achieving sensor devices possessing over wide linear range with multifunctional sensing capabilities is still challenging. Herein, inspired by the of fingertip skin, highly sensitive demonstrated response capabilities. The porous layer designed hierarchical on surface. By optimizing...
Abstract Neuromorphic computing systems that are capable of parallel information storage and processing with high area energy efficiencies, offer important opportunities for future in‐memory computing. Here, it is shown a carbon dots/silk protein (CDs/silk) blend can be used as light‐tunable charge trapping medium to fabricate an electro‐photoactive transistor synapse. The synaptic device optically operated in volatile or nonvolatile modes, ensuring concomitant short‐term long‐term...
Abstract Simulating biological synaptic functionalities through artificial devices opens up an innovative way to overcome the von Neumann bottleneck at device level. Artificial optoelectronic synapses provide a non‐contact method operate and shortcomings of electrical devices. With advantages high photoelectric conversion efficiency, adjustable light absorption coefficient, broad spectral range, nanowires (NWs)‐based have attracted wide attention. Herein, better promote applications...
Abstract Neuromorphic computing systems can perform memory and tasks in parallel on artificial synaptic devices through simulating functions, which is promising for breaking the conventional von Neumann bottlenecks at hardware level. Artificial optoelectronic synapses enable synergistic coupling between optical electrical signals modulation, opens up an innovative path effective neuromorphic systems. With advantages of high mobility, transparency, ultrawideband tunability, environmental...
For decades, the widespread application of thermoelectric generators has been plagued by two major limitations: heat stagnation in its legs, which limits power conversion efficiency, and inherent brittleness constituents, accelerates generator failure. While notable progress made to overcome these quintessential flaws, state-of-the-art suffers from an apparent mismatch between performance mechanical toughness. Here, we demonstrate approach potentially enhance efficiency while suppressing...
Abstract Motion recognition (MR)‐based somatosensory interaction technology, which interprets user movements as input instructions, presents a natural approach for promoting human‐computer interaction, critical element advancing metaverse applications. Herein, this work introduces non‐intrusive muscle‐sensing wearable device, that in conjunction with machine learning, enables motion‐control‐based avatars. To facilitate MR, the proposed device simultaneously detects muscle mechanical...
Abstract In this data explosion era, ensuring the secure storage, access, and transmission of information is imperative, encompassing all aspects ranging from safeguarding personal devices to formulating national security strategies. Leveraging potential offered by dual-type carriers for transportation employing optical modulation techniques develop high reconfigurable ambipolar optoelectronic transistors enables effective implementation destruction after reading, thereby guaranteeing...
The morphology and optical properties of ZnO nanostructures prepared by thermal evaporation Zn under different conditions was investigated. in air, dry humid argon flow, nitrogen flow were characterized scanning electron microscopy, transmission x-ray diffraction, photoluminescence. Tetrapod nanorods obtained for fabrication while or nanowires tetrapod obtained. Growth from the end nanorod observed. Influence preparation on structure room-temperature photoluminescence is discussed.
Arrays of ZnO/ZnxCd1–xSe (0 ≤ x 1) core/shell nanocables with shells tunable compositions have been synthesized on fluorine-doped tin oxide glass substrates via a simple ion-exchange approach. Through the effects stoichiometry and type II heterojunction, optical absorptions nanocable arrays can be controllably tuned to cover almost entire visible spectrum. Lattice parameters band gaps ternary ZnxCd1–xSe were found respectively linear quadratic relationships Zn content (x). These are further...
ZnO tetrapod nanostructures were prepared by evaporating Zn metal under humid argon flow. After the fabrication, Mn diffusion doping was performed at two different temperatures (600 and 800 °C). The samples characterized scanning electron microscopy, transmission x-ray fluorescence, diffraction (XRD), superconducting quantum interference device magnetometer, photoluminescence. Diffusion resulted in increase of size tetrapods, but no new peaks found XRD spectrum. doped structures to be...
Organometallic nanowires with luminescent and current-modulating properties were self-assembled from cyclometalated/terpyridyl platinum(II) complexes auxiliary arylisocyanide/arylacetylide ligands incorporated into a compact organic light-emitting field-effect transistor (see picture) by solution-processable protocols. The exhibit both electron hole mobilities of 0.1 cm2 V−1 s−1. Detailed facts importance to specialist readers are published as ”Supporting Information”. Such documents...
Weiche Materie mit hartem Kern: Durch PtII⋅⋅⋅PtII- und hydrophobe Wechselwirkungen gehen planare Organoplatin(II)-Kationen Chlorid- oder Sulfat-Gegenionen in Wasser rot emittierende, viskoelastische, gestapelte Mesophasen über, aus denen leicht ausgerichtete Filme uniaxiale Mikrofasern cofacialer Molekülanordnung erhalten werden. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents peer-reviewed, but not copy-edited or typeset. They...
A hybrid double-floating-gate flexible memory device by utilizing an rGO-sheet monolayer and a Au NP array as upper lower floating gates is reported. The rGO buffer layer acts charge-trapping introduces energy barrier between the gate channel. proposed demonstrates strong improvement in both field-effect-transistor (FET) characteristics.
Copper-based alloy nanoparticles (NPs) have recently triggered much research interest for the development of low-cost and high-performance bimetallic catalysts that industrial applications.