A5101899474- Magnetic properties of thin films
- Semiconductor materials and devices
- GaN-based semiconductor devices and materials
- Semiconductor materials and interfaces
- ZnO doping and properties
- Copper-based nanomaterials and applications
- Phase Change Materials Research
- Metal and Thin Film Mechanics
- Advanced Photocatalysis Techniques
- Supercapacitor Materials and Fabrication
- Electrocatalysts for Energy Conversion
- Adsorption and Cooling Systems
- Advanced Memory and Neural Computing
- Catalytic Processes in Materials Science
- Gold and Silver Nanoparticles Synthesis and Applications
- Silicon and Solar Cell Technologies
- Geochemistry and Elemental Analysis
- 2D Materials and Applications
- Physics of Superconductivity and Magnetism
- Nanocluster Synthesis and Applications
- CO2 Reduction Techniques and Catalysts
- nanoparticles nucleation surface interactions
- Chalcogenide Semiconductor Thin Films
- Thin-Film Transistor Technologies
- Quantum Dots Synthesis And Properties
Agency for Science, Technology and Research
2016-2025
Institute of Materials Research and Engineering
2016-2025
Singapore Institute of Technology
2024
University of California, San Diego
2023
National University of Defense Technology
2023
National Grid (United States)
2023
Shenzhen Children's Hospital
2023
Beijing Solar Energy Research Institute
2023
Nanyang Technological University
2022
Fujian Normal University
2022
Reduced graphene oxide (rGO)-conjugated Cu2O nanowire mesocrystals were formed by nonclassical crystallization in the presence of GO and o-anisidine under hydrothermal conditions. The resultant are comprised highly anisotropic nanowires as building blocks possess a distinct octahedral morphology with eight {111} equivalent crystal faces. mechanisms underlying sequential formation follows: first, GO-promoted agglomeration amorphous spherical nanoparticles at initial stage, leading to...
We present a facile approach for the fabrication of nanocomposite comprising α-Fe2O3 nanotubes (NTs) anchored on reduced graphene oxide (rGO) electrochemical capacitors (ECs). The hollow tubular structure NTs presents high surface area reaction, while incorporation rGO provides an efficient two-dimensional conductive pathway to allow fast, reversible redox reaction. As result, materials exhibit specific capacitance which is remarkably higher (∼7 times) than alone. In addition, nanocomposites...
Cupric oxide (CuO) thin film was sputtered onto fluorine-doped tin (FTO) coated glass substrate and incorporated into a photoelectrochemical (PEC) cell as photocathode. Through in situ nanocrystal engineering, CuO shows an improvement its stability photocurrent generation capability. For the same thickness (150 nm), films deposited at sputtering power of 300 W exhibit ∼0.92 mAcm–2 (0 V vs RHE), which is significantly higher than those 30 (∼0.58 mAcm–2). By increasing to 500 nm, further...
Abstract The electrochemical conversion of nitrate to ammonia is a way eliminate pollutant in water. Cu-Co synergistic effect was found produce excellent performance generation. However, few studies have focused on this high-entropy oxides. Here, we report the spin-related nitrate-to-ammonia using oxide Mg 0.2 Co Ni Cu Zn O. In contrast, Li-incorporated MgCoNiCuZnO exhibits inferior performance. By correlating electronic structure, that spin states are crucial for pair with high O can...
Physically loading of paclitaxel (PTX) onto carbon nanotubes (CNTs) is achieved through immersion poly(ethylene glycol) (PEG)-graft-single walled CNTs (PEG-g-SWNTs) or PEG-graft-multi-walled (PEG-g-MWNTs) in a saturated solution PTX methanol. After once the capacity (LD%) 26% (w/w) and 36% for PEG-g-SWNTs PEG-g-MWNTs, respectively. With these contents, loaded PEG-g-MWNTs still have good dispersity aqueous individual can be observed TEM images. released from PEG-g-CNTs several times faster...
Abstract This report describes a new route to covalently bonded polymer–graphene nanocomposites and the subsequent enhancement in thermal mechanical properties of resultant nanocomposites. At first, graphite is oxidized by modified Hummers method followed functionalization with Octadecylamine (ODA). The ODA functionalized oxides are reacted methacryloyl chloride incorporate polymerizable CC functionality at nanographene platelet surfaces, which were subsequently employed situ...
The growth mechanism of CeO2 nanocrystals prepared by the hydrothermal method has been studied in this article. synthesis follows two stages, initial nucleation nuclei and subsequent ripening process. involves precipitation Ce3+ cations OH– ions to form Ce(OH)3 nanoparticles transition from 2–3 nm through an oxidation rapid dehydration In process, oriented attachment a lattice matched surface Ostwald results nanocrystals. dominant for reactions is attachment. addition polyvinylpyrrolidone...
We report a facile chemical synthesis of well-defined gold nanocrosses through anisotropic growth along both <110> and <001>, whereas nanorods grow only either or <001>. The multiple branching was achieved by breaking the face-centered-cubic lattice symmetry copper-induced formation single double twins, resulting exhibited pronounced near-IR absorption with great extension to mid-IR region. As studied discrete dipole approximation (DDA) simulations, entire nanocross gets excited even when...
The modification of zinc oxide (ZnO) with silver (Ag) has proven to be an effective strategy enhance the optical and electrical properties, in which interactions between ZnO Ag are critically determined by structure morphology ZnO–Ag hybrids. In order achieve homogeneous controllable distribution, polydopamine (PDA) was introduced via situpolymerization assist decoration nanorods (NRs) nanoparticles (NPs). Compared pristine NRs, light absorption is significantly enhanced for PDA assisted...
Multilayer coating structure comprising a copper (Cu) layer sandwiched between titanium dioxide (TiO2) were demonstrated as transparent heat reflecting (THR) on glass for energy-saving window application. The main highlight is the utilization of Cu, low-cost material, in-lieu silver which widely used in current commercial glass. Color tunable was realized through design multilayer and process optimization. impact thermal treatment overall performance sputter deposited TiO2/Cu/TiO2 thin film...
A highly crystalline graphitic carbon nitride homojunction was synthesized by calcination of deep eutectic solvent precursors in NaCl/KCl molten salt media and exhibited excellent performance selective photocatalytic oxidation.
Abstract Traditional catalytic techniques often encounter obstacles in the search for sustainable solutions converting CO 2 into value-added products because of their high energy consumption and expensive catalysts. Here, we introduce a contact-electro-catalysis approach reduction reaction, achieving Faradaic efficiency 96.24%. The is driven by triboelectric nanogenerator consisting electrospun polyvinylidene fluoride loaded with single Cu atoms-anchored polymeric carbon nitride (Cu-PCN)...
Abstract Heterojunction solar cells of p ‐type cupric oxide (CuO) and n silicon (Si), ‐CuO/ ‐Si, have been fabricated using conventional sputter rapid thermal annealing techniques. Photovoltaic properties with an open‐circuit voltage ( V oc ) 380 mV, short circuit current J sc 1.2 mA/cm 2 , a photocurrent 2.9 were observed for the cell annealed at 300 °C 1 min. When duration was increased, but found to reduce because degradation interface quality. An improvement in resulting record value 509...
A carbon/SnO2/carbon core/shell/shell hybrid nanofibrous mat was successfully prepared via single-spinneret electrospinning followed by carbonization and hydrothermal treatment. The morphology structure of nanofibers were characterized field-emission scanning electron microscopy, transmission thermogravimetric analysis, wide-angle X-ray diffraction photoelectron spectroscopy, their electrochemical properties studied as an anode in lithium ion batteries (LIBs). It is shown that the designed...
We report a novel optical property in WS2 monolayer. The monolayer naturally exhibits beautiful in-plane periodical and lateral homojunctions by way of alternate dark bright band the fluorescence images these monolayers. interface between different species within sample is distinct sharp. This gives rise to intriguing concentric triangular patterns this special facilitated chemical heterogeneity. photoluminescence dominated emissions from trion biexciton while emission defect-bound exciton...
Driven by the demand for shape-controlled synthesis of α-Fe2O3 nanostructures and understanding their growth mechanism shape-dependent properties, we report octadecahedral nanocrystals with a hexagonal bipyramid shape introducing F– anions in solution. The hydrothermal process from hydrolysis Fe3+ precursors involves three steps: nucleation akaganeite (β-FeOOH) nanorods, followed formation goethite (α-FeOOH) crystals acicular twinned shapes, subsequent transformation into hematite (α-Fe2O3)...
One-dimensional (1D) metallic nanocrystals constitute an important class of plasmonic materials for localization light into subwavelength dimensions. Coupled with their intrinsic conductive properties and extended optical paths absorption, nanowires are prevalent in light-harnessing applications. However, the transverse surface plasmon resonance (SPR) mode traditional multiply twinned often suffers from weaker electric field enhancement due to its low degree morphological curvature...
A cobalt–nickel sulfide composite electrode synthesized onto Ni foam through a facile thermal decomposition method showed remarkable activity towards electrocatalytic hydrogen production.