A5058673191- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Nanowire Synthesis and Applications
- Photonic and Optical Devices
- Semiconductor Quantum Structures and Devices
- Magnetism in coordination complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Metal complexes synthesis and properties
- Plasmonic and Surface Plasmon Research
- Advancements in Semiconductor Devices and Circuit Design
- Crystallography and molecular interactions
- Photonic Crystals and Applications
- Crystal structures of chemical compounds
- Lanthanide and Transition Metal Complexes
- GaN-based semiconductor devices and materials
- Semiconductor materials and interfaces
- Optical Coatings and Gratings
- Indoor and Outdoor Localization Technologies
- Silicon Nanostructures and Photoluminescence
- Semiconductor materials and devices
- Near-Field Optical Microscopy
- Quantum Dots Synthesis And Properties
- Microwave Engineering and Waveguides
- Smart Grid and Power Systems
- Force Microscopy Techniques and Applications
Australian National University
2015-2025
Qingdao Agricultural University
2023-2025
ARC Centre of Excellence for Transformative Meta-Optical Systems
2020-2025
Anhui University
2024
Qingdao Center of Resource Chemistry and New Materials
2024
Jiangsu University of Technology
2024
Guilin Medical University
2024
Shenzhen University
2024
Anhui Medical University
2024
China University of Mining and Technology
2024
We report the growth of stacking-fault-free and taper-free wurtzite InP nanowires with diameters ranging from 80 to 600 nm using selective-area metal–organic vapor-phase epitaxy experimentally determine a quantum efficiency ∼50%, which is on par epilayers. also demonstrate room-temperature, photonic mode lasing these nanowires. Their excellent structural optical quality opens up new possibilities for both fundamental optics optoelectronic devices.
Precise and sensitive analysis of exosomal microRNA (miRNA) is great importance for noninvasive early disease diagnosis, but it remains a challenge to detect miRNA in human blood samples because their small size, high sequence homology, low abundance. Herein, we integrated reliable Pt–S bond-mediated three-dimensional (3D) DNA nanomachine magnetic separation homogeneous electrochemical strategy the detection with background sensitivity. The 3D was easily prepared via facile rapid freezing...
Precise identification and analysis of multiple protein biomarkers on the surface breast cancer cell-derived extracellular vesicles (BC-EVs) are great significance for noninvasive diagnosis subtypes, but it remains a major challenge owing to their high heterogeneity low abundance. Herein, we established CRISPR-based homogeneous electrochemical strategy near-zero background ultrasensitive detection BC-EVs. To realize high-performance capture isolation BC-EVs, fluidity-enhanced magnetic...
Co/Fe Prussian Blue analogues are known to display both thermally and light induced electron transfer attributed the switching between diamagnetic {FeIILS(μ-CN)CoIIILS} paramagnetic {FeIIILS(μ-CN)CoIIHS} pairs (LS = low spin; HS high spin). In this work, a dinuclear cyanido-bridged complex, smallest {Fe(μ-CN)Co} moiety at origin of remarkable physical properties these systems, has been designed by rational building-block approach. Combined structural, spectroscopic, magnetic photomagnetic...
We report the electrical transport and H(2)S sensing properties of single beta-AgVO(3) nanowire device. nanowires were successfully prepared by ultrasonic treatment followed hydrothermal reaction using V(2)O(5) sol. The individual exhibits a "threshold switching" phenomenon. High bias (i.e., 6 V for Au contacts) is required to initially switch device from nonconductive conductive, it may be related formation nanoscale metallic Ag when enough voltage applied between two electrodes. This novel...
Highly compact, filter-free multispectral photodetectors have important applications in biological imaging, face recognition, and remote sensing. In this work, we demonstrate room-temperature wavelength-selective multipixel based on GaAs0.94Sb0.06 nanowire arrays grown by metalorganic vapor phase epitaxy, providing more than 10 light detection channels covering both visible near-infrared ranges without using any optical filters. The array geometry-related tunable spectral photoresponse has...
GaAs/AlxGa1−xAs core-shell nanowires were grown by metal organic chemical vapor deposition with optimized AlxGa1−xAs shell and twin-free Au-catalyzed GaAs cores. Time-resolved photoluminescence measurements carried out on single at room temperature, revealing minority carrier lifetimes of 1.02 ± 0.43 ns, comparable to self-assisted molecular beam epitaxy. The long are mainly attributed improvement the interface quality. upper limit surface recombination velocity structure is calculated be...
We experimentally determine the lasing mode(s) in optically pumped semiconductor nanowire lasers. The spatially resolved and angle-resolved far-field emission profiles of single InP lasers lying horizontally on a SiO2 substrate are characterized microphotoluminescence (μ-PL) setup. obtained polarization dependent match very well with numerical simulations enable unambiguous identification mode(s). This technique can be applied to characterize modes other type nanolasers that integrated...
Selective-area epitaxy is highly successful in producing application-ready size-homogeneous arrays of III-V nanowires without the need to use metal catalysts. Previous works have demonstrated excellent control nanowire properties but growth mechanisms remain rather unclear. Herein, we report a detailed study revealing that fundamental pure wurtzite InP ⟨111⟩A can indeed differ significantly from simple picture facet-limited selective-area process. A dual regime with and metallic droplet...
Identifying the specific role of physical guidance cues in growth neurons is crucial for understanding fundamental biology brain development and designing scaffolds tissue engineering. Here, we investigate structural significance nanoscale topographies as neurite outgrowth circuit formation by growing on semiconductor nanowires. We monitored using optical scanning electron microscopy evaluated spontaneous neuronal network activity functional calcium imaging. show, first time, that an...
Silicon photonic modulators rely on the plasma dispersion effect by free-carrier injection or depletion, which can only induce moderate refractive index perturbation. Therefore, size and energy efficiency of silicon are ultimately limited as they also subject to diffraction limit. Here we report an ultracompact electro-optic modulator with total device footprint 0.6 × 8 μm2 integrating voltage-switched transparent conductive oxide one-dimensional crystal nanocavity. The active modulation...
A cyano-bridged {Fe2Co2} complex shows reversible single crystal-to-single crystal transformation between diamagnetic and paramagnetic states switched specifically by losing absorbing methanol at room temperature in the solid state. And solvent loss form presents temperature- pressure-induced intramolecular electron transfer behaviour.
Nanowire lasers are integrated with planar waveguide devices using a high positional accuracy microtransfer printing technique. Direct nanowire to coupling is demonstrated, losses as low -17 dB, dominated by mode mismatch between the structures. Coupling achieved both end-fire into facet, and from printed directly onto top surface of waveguide. In-waveguide peak powers up 11.8 μW demonstrated. Basic photonic circuit functions such power splitting wavelength multiplexing presented. Finally,...
Transparent conductive oxides have emerged as a new type of plasmonic material and demonstrated unique electro-optic (E-O) modulation capabilities for next-generation photonic devices. In this paper, we report an ultra-compact, broadband electro-absorption (EA) modulator using epsilon-near-zero (ENZ) indium-tin oxide (ITO). The device is fabricated on standard silicon-on-insulator platform through the integration with 3 μm long, 300 nm wide gold slot waveguide. active E-O region consists...
Accurate positioning and organization of indium phosphide (InP) nanowires (NWs) with lasing emission at room temperature is achieved using a nanoscale transfer printing (TP) technique. The NWs retained their after to targeted locations on different receiving substrates (e.g., polymers, silica, metal surfaces). were also organized into complex spatial patterns, including 1D 2D arrays, controlled number elements dimensions. developed TP technique enables the fabrication bespoke nanophotonic...
Terahertz time-domain spectroscopy (THz-TDS) has emerged as a powerful tool for materials characterization and imaging. A trend toward size reduction, higher component integration, performance improvement advanced THz-TDS systems is of increasing interest. The use single semiconducting nanowires terahertz (THz) detection nascent field that great potential to realize future highly integrated THz systems. In order develop such components, optimized material optoelectronic properties careful...
Heat management mechanisms play a pivotal role in driving the design of nanowire (NW)-based devices. In particular, rate at which charge carriers cool down after an external excitation is crucial for efficiency solar cells, lasers, and high-speed transistors. Here, we investigate thermalization properties photogenerated by continuous-wave (cw) photoluminescence (PL) InP GaAs NWs. A quantitative analysis PL spectra recorded up to 310 K shows that can thermalize temperature much higher than...
Greater demand for III–V nanostructures with more sophisticated geometries other than nanowires is expected because of the recent intensive investigation nanowire networks that show great potential in all-optical logic gates, nanoelectronics, and quantum computing. Here, we demonstrate highly uniform arrays InP tunable shapes, such as membrane-, prism-, ring-like which can be simultaneously grown by selective area epitaxy. Our in-depth shape evolution confirms essentially determined pattern...
Point-of-care testing (POCT) plays an increasingly important role in biomedical research and health care. Quantitative phase microscopes (QPMs) with good contrast, no invasion, labeling, high speed automation could be effectively applied for POCT. However, most QPMs are fixed on the optical platform bulky size, lack of timeliness, which remained challenging POCT solutions. In this paper, we proposed a plug-and-play QPM multimode imaging based quantitative differential contrast (qDPC) method....
The ever-increasing global network traffic requires a high level of seamless integration between optical interconnect systems and complementary metal-oxide-semiconductor (CMOS) circuits. Therefore, it brings stringent requirements for future electro-optic (E-O) modulators, which should be ultracompact, energy efficient, bandwidth, in the meanwhile, able to directly driven by state-of-the-art CMOS In this Letter, we report low-voltage silicon photonic crystal nanocavity modulator using an...