A5031771510- 2D Materials and Applications
- Transition Metal Oxide Nanomaterials
- Gas Sensing Nanomaterials and Sensors
- ZnO doping and properties
- Advanced Photocatalysis Techniques
- Ga2O3 and related materials
- Advanced Fiber Laser Technologies
- Copper-based nanomaterials and applications
- Advanced Sensor and Energy Harvesting Materials
- Electronic and Structural Properties of Oxides
- Perovskite Materials and Applications
- Thin-Film Transistor Technologies
- Nanomaterials and Printing Technologies
- Photonic and Optical Devices
- Photorefractive and Nonlinear Optics
- MXene and MAX Phase Materials
- Iron oxide chemistry and applications
- Force Microscopy Techniques and Applications
- Advanced Materials and Mechanics
- Lipid Membrane Structure and Behavior
- Electrocatalysts for Energy Conversion
- Spectroscopy Techniques in Biomedical and Chemical Research
- Gold and Silver Nanoparticles Synthesis and Applications
- Semiconductor materials and devices
- Ferroelectric and Negative Capacitance Devices
RMIT University
2018-2024
Centre for Quantum Computation and Communication Technology
2022-2023
MIT University
2018-2020
Abstract Two-dimensional piezotronics will benefit from the emergence of new crystals featuring high piezoelectric coefficients. Gallium phosphate (GaPO 4 ) is an archetypal material, which does not naturally crystallise in a stratified structure and hence cannot be exfoliated using conventional methods. Here, we report low-temperature liquid metal-based two-dimensional printing synthesis strategy to achieve this goal. We exfoliate surface print interfacial oxide layer gallium, followed by...
We report the synthesis of centimeter sized ultrathin GaN and InN. The relies on ammonolysis liquid metal derived two-dimensional (2D) oxide sheets that were squeeze-transferred onto desired substrates. Wurtzite nanosheets featured typical thicknesses 1.3 nm, an optical bandgap 3.5 eV a carrier mobility 21.5 cm2 V-1 s-1, while InN thickness 2.0 nm. deposited highly crystalline, grew along (001) direction only three unit cells. method provides scalable approach for integration 2D morphologies...
Ultrathin α-Fe<sub>2</sub>O<sub>3</sub> and FeP are synthesized by engineering the lattice matching degree between water-soluble template target material for hydrogen evolution reaction.
Atomically thin layers of Bi<sub>2</sub>O<sub>3</sub> are isolated from liquid bismuth, allowing the development ultrafast 2D-enabled UV photo-detectors.
High dielectric constant (high-k) ultrathin films are required as insulating gate materials. The well-known high-k dielectrics, including HfO2, ZrO2, and SrTiO3, feature three-dimensional lattice structures thus not easily obtained in the form of distinct sheets. Therefore, their deposition layers still imposes challenges for electronic industries. Consequently, new nanomaterials with k range 40 to 100 a band gap exceeding 4 eV highly sought after. Antimony oxide nanosheets appear potential...
Ultrathin transparent conductive oxides (TCOs) are emerging candidates for next-generation electronics. Indium oxide (In2O3) incorporated with post-transition-metal ions (e.g., Sn) has been widely studied due to their excellent optical transparency and electrical conductivity. However, electron transport properties deteriorated at the ultrathin two-dimensional (2D) morphology compared that of intrinsic In2O3. Here, we explore domain transition-metal dopants in In2O3 thicknesses down...
Excitation wavelength-dependent photoluminescence (PL) in two-dimensional (2D) transition-metal chalcogenides enables a strong excitonic interaction for high-performance chemical and biological sensing applications. In this work, we explore the possible candidates domain of post-transition-metal chalcogenides. Few-layered 2D p-type tin monosulfide (SnS) nanoflakes with submicrometer lateral dimensions are synthesized from liquid phase exfoliation bulk crystals. PL is found, radiative...
Abstract 2D materials with high in‐plane anisotropy are rapidly emerging as a tantalizing class of nanomaterials promising applications in nanoelectronics and optoelectronics since they provide an additional degree freedom that can be exploited device design. The large‐area synthesis such remains however challenging the anisotropic crystal structure renders identifying suitable growth substrate to difficult, while nanosheets usually too fragile for exfoliation transfer macroscopic sheets....
The library of two-dimensional materials is limited since many transition metal compounds are not stratified and can thus be easily isolated as nanosheets. Liquid metal-based synthesis provides a new approach to overcome this limitation.
Abstract Photodetectors formed with layered two‐dimensional (2D) materials have shown significant potential for integration photonic circuits, offering fast, high responsivity and low noise detection over a broad range of optical wavelengths. However, only preliminary trials this concept been performed on emerging photonics platforms such as lithium niobate insulator (LNOI). In study, novel architecture consisting ≈15 nm thick black phosphorus (bP) photoconductors draped LNOI waveguides is...
Ultrathin transparent semiconducting oxides have attracted considerable attention in multifunctional electronic and optoelectronic devices, owing to their exciting physical properties excellent stability. However, due wide bandgap, absorption the visible region is very limited. Here, we show enhanced light–matter interactions by integrating plasmonic gold nanoparticles onto ultrathin SnO2 nanosheets, leading higher optical spectra. In this work, a vacuum-free liquid metal printing technique...
Cholesterol is believed to induce the formation of membrane domains, "rafts", which are implicated in a range natural and pathologic processes. Therefore, it important understand role that cholesterol plays these structures. Here, we use label-free spectroscopic imaging investigate fractioning supported bilayer membranes at nanoscale. Scattering-type scanning near-field optical microscopy (s-SNOM) was used visualize cholesterol-induced domains 1,2-dimyristoyl-sn-glycero-3-phosphocholine...
Abstract Diamond color centers (optically active defects) can be used for all‐optical thermometry non‐invasive and localized temperature measurements. The visible to near‐infrared photoluminescence of these defects is greatly attenuated in optical fibres biological samples therefore limits their use. A center Si‐doped diamond with emission coinciding the O‐band a major transparency window has recently been reported. It zero phonon line (ZPL) at 1221 nm well‐resolved side‐band features. In...