A5086339863- 2D Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Perovskite Materials and Applications
- MXene and MAX Phase Materials
- Plasmonic and Surface Plasmon Research
- Advanced Memory and Neural Computing
- Graphene research and applications
- Photonic and Optical Devices
- Chalcogenide Semiconductor Thin Films
- Metamaterials and Metasurfaces Applications
- ZnO doping and properties
- Conducting polymers and applications
- Ga2O3 and related materials
- Advanced Chemical Sensor Technologies
- Organic and Molecular Conductors Research
- Thermal Radiation and Cooling Technologies
- Advanced Semiconductor Detectors and Materials
- Advanced Photocatalysis Techniques
- Gold and Silver Nanoparticles Synthesis and Applications
- Electronic and Structural Properties of Oxides
- Copper-based nanomaterials and applications
- Orbital Angular Momentum in Optics
- Advanced Fiber Laser Technologies
- Thin-Film Transistor Technologies
The University of Melbourne
2019-2025
RMIT University
2012-2023
ARC Centre of Excellence for Transformative Meta-Optical Systems
2023
MIT University
2018
Monash University
2012-2013
Commonwealth Scientific and Industrial Research Organisation
2013
The fascinating electronic and optoelectronic properties of free-standing graphene has led to the exploration alternative two-dimensional materials that can be easily integrated with current generation technologies. In contrast 2D oxide dichalcogenides, elemental analogues graphene, which include monolayer silicon (silicene), are fast emerging as promising alternatives, predictions high degree integration existing This article reviews this class – silicene, germanene, stanene, phosphorene...
Abstract In the quest to discover properties of planar semiconductors, two‐dimensional molybdenum trioxide and dichalcogenides have recently attracted a large amount interest. This family, which includes (MoO 3 ), disulphide (MoS 2 diselenide (MoSe ) ditelluride (MoTe possesses many unique that make its compounds appealing for wide range applications. These can be thickness dependent may manipulated via number physical chemical processes. this Feature Article, comprehensive review is...
We demonstrate that the energy bandgap of layered, high-dielectric α-MoO(3) can be reduced to values viable for fabrication 2D electronic devices. This is achieved through embedding Coulomb charges within high dielectric media, advantageously limiting charge scattering. As a result, devices with ∼11 nm thickness and carrier mobilities larger than 1100 cm(2) V(-1) s(-1) are obtained.
Two-dimensional (2D) transition metal dichalcogenide semiconductors offer unique electronic and optical properties, which are significantly different from their bulk counterparts. It is known that the structure of 2D MoS2, most popular member family, depends on number layers. Its alters dramatically at near atomically thin morphologies, producing strong photoluminescence (PL). Developing processes for controlling MoS2 PL essential to efficiently harness many its capabilities. So far, it has...
Two dimensional molybdenum disulfide (MoS(2)) has recently become of interest to semiconductor and optic industries. However, the current methods for its synthesis require harsh environments that are not compatible with standard fabrication processes. We report on a facile method layered MoS(2) using thermal evaporation technique, which requires modest conditions. In this process, mixture dioxide (MoO(2)) is produced by evaporating sulfur powder trioxide (MoO(3)) nano-particles...
Planar 2D materials are possibly the ideal channel candidates for future field effect transistors (FETs), due to their unique electronic properties. However, performance of FETs based on is yet exceed those conventional silicon devices. Here, a thin film made from liquid phase exfoliated molybdenum oxide nanoflake inks with highly controllable substoichiometric levels presented. The ability induce oxygen vacancies by solar light irradiation in an aqueous environment allows tuning properties...
We demonstrate that a three dimensional (3D) crystalline tungsten trioxide (WO(3)) nanoporous network, directly grown on transparent conductive oxide (TCO) substrate, is suitable working electrode material for high performance electrochromic devices. This nanostructure, with achievable thicknesses of up to 2 μm, prepared at room temperature by the electrochemical anodization RF-sputtered film deposited fluoride doped tin (FTO) glass, under low applied anodic voltages and mild chemical...
Electrical-based biosensing platforms offer ease of fabrication and simple sensing solutions. Recently, two-dimensional (2D) semiconductors have been proven to be excellent for the field effect transistors (FETs) due their large transconductance, which can efficiently used developing sensitive bioplatforms. We present a 2D molybdenum trioxide (MoO3) FET based platform, using bovine serum albumin as model protein. The conduction channel is nanostructured film made α-MoO3 nanoflakes, with...
Few-layer black phosphorous (BP) has emerged as a promising candidate for next-generation nanophotonic and nanoelectronic devices. However, rapid ambient degradation of mechanically exfoliated BP poses challenges in its practical deployment scalable To date, the strategies employed to protect have relied upon preventing exposure atmospheric conditions. Here, an approach that allows this sensitive material remain stable without requiring isolation from environment is reported. The method...
While layered materials are increasingly investigated for their potential in nanoelectronics, functionality and efficiency depend on charge injection into the via metallic contacts. This work explores characteristics of different metals (aluminium, tungsten, gold, platinum) deposited to nanostructured thin films made two-dimensional (2D) MoS2 flakes. Metals chosen based functions relative electron affinity MoS2. It is observed, analytically verified that lower contact lead smaller Schottky...
Elemental 2D black phosphorus (BP) is a highly anisotropic versatile material capable of exhibiting wide ranging electronic characteristics from semi-metallic to semiconducting. Its thickness dependent tunable energy gap makes it an exciting prospect for deployment in variety applications. The main hurdle limiting diverse applications incorporating BP its ambient instability. degrades rapidly under room conditions, affecting structure and properties. In this report, we cover the recent...
Memristive devices are the precursors to high density nanoscale memories and building blocks for neuromorphic computing. In this work, a unique room temperature synthesized perovskite oxide (amorphous SrTiO 3 : a‐ STO) thin film platform with engineered oxygen deficiencies is shown realize performance scalable metal‐oxide‐metal (MIM) memristive arrays demonstrating excellent uniformity of key resistive switching parameters. STO memristors exhibit nonvolatile bipolar significantly (10 –10 4 )...
Few-layer black phosphorus (BP) is an emerging material of interest for applications in electronics. However, lack ambient stability hampering its incorporation practical devices as it demands inert operating environment. Here, we study the individual effects key environmental factors, such temperature, light and humidity on deterioration BP. It shown that own does not cause degradation. In fact, few-layer BP employed a recoverable sensor. This eliminates active parameter Hence, by simply...
Abstract Layered black phosphorous has recently emerged as a promising candidate for next generation nanoelectronic devices. However, the rapid ambient degradation of mechanically exfoliated poses challenges in its practical implementation scalable As photo-oxidation been identified main cause degradation, to-date, strategies employed to protect have relied upon preventing exposure atmospheric oxygen. These inhibit access material limiting use. An understanding effect individual wavelengths...
Atomically thin materials face an ongoing challenge of scalability, hampering practical deployment despite their fascinating properties. Tin monosulfide (SnS), a low-cost, naturally abundant layered material with tunable bandgap, displays properties superior carrier mobility and large absorption coefficient at atomic thicknesses, making it attractive for electronics optoelectronics. However, the lack successful synthesis techniques to prepare large-area stoichiometric atomically SnS layers...
Highly confined and low-loss polaritons are known to propagate isotropically over graphene hexagonal boron nitride in the plane, leaving limited degrees of freedom manipulating light at nanoscale. The emerging family biaxial van der Waals materials, such as α-MoO3 V2O5, support exotic polariton propagation, their auxiliary optical axis is plane. Here, exploiting this strong in-plane anisotropy, we report edge-tailored hyperbolic patterned nanocavities via real-space nanoimaging. We find that...
A single photodetector capable of switching its peak spectral photoresponse between two wavelength bands is highly useful, particularly for the infrared (IR) in applications such as remote sensing, object identification, and chemical sensing. Technologies exist achieving dual-band IR detection with bulk III-V II-VI materials, but high cost complexity well necessity active cooling associated some these technologies preclude their widespread adoption. In this study, we leverage advantages...
Abstract Miniaturization and energy consumption by computational systems remain major challenges to address. Optoelectronics based synaptic light sensing provide an exciting platform for neuromorphic processing vision applications offering several advantages. It is highly desirable achieve single‐element image sensors that allow reception of information execution in‐memory computing processes while maintaining memory much longer durations without the need frequent electrical or optical...
Abstract Smart, low-cost and portable gas sensors are highly desired due to the importance of air quality monitoring for environmental defense-related applications. Traditionally, electrochemical nondispersive infrared (IR) designed detect a single specific analyte. Although IR spectroscopy-based provide superior performance, their deployment is limited large size high cost. In this study, smart, low-cost, multigas sensing system demonstrated consisting mid-infrared microspectrometer machine...
Using ZnO seed layers, an efficient approach for enhancing the heterointerface quality of electrodeposited ZnO–Cu2O solar cells is devised. We introduce a sputtered layer followed by sequential electrodeposition and Cu2O films. The employed to control growth crystallinity augment surface area films, thereby tuning heterointerface. Additionally, also assists in forming high with no pin-holes, pH electrolyte solution. X-ray electron diffraction patterns, scanning atomic force microscopy...