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online seminar


Environmental effects of oxide nanomaterials

Stanislaus Wong presents on the role of chemical composition, morphology, structure, size, and shape in the toxicity of nanomaterials

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Using nanotechnology to enhance the performance of LEDs and other light sources

Lab talk

Nanotechnology research highlights: find out what the authors have to say

Polarization enables dopant-free nanowire devices

Ability to form polarization-induced electron or hole carriers in GaN-based nanowires removes need to introduce dopant atoms to create functional devices

High-speed femtosecond laser induced nanostructuring

Universal approach should suit almost any solid material including dielectric, semiconducting or metallic surfaces

White electroluminescence from nanowire arrays

LEDs on silicon substrates combine multiple emission colours from InGaN nanowires to produce white light without phosphor conversion

Lasers write semiconducting nanoparticles inside silica monoliths

Local generation of nanoparticles deep within or just under the surface of silica xerogel

SERS aggregates patterned by laser trapping

Optical trapping of plasmonic nanoparticles and bubble formation in aqueous suspension

Turning ZnO nanowires into ultra-bright UV emitters

Ultraviolet emission enhanced by a factor of almost 50

Cyto-friendly system for targeted cancer imaging

Fluorescent gold nanoclusters detect and illuminate specific cancer cells

Plasmonic nanobubbles: combining diagnosis and treatment into theranostics

Laser and gold nanoparticle system shows promise for rapid diagnosis and treatment of diseases at cell level

Test structure highlights SPP response

Relationship between metal electron density and surface plasmon polaritons (SPPs) revealed

Green single quantum-dot electroluminescence at 150 K

Promising milestone towards electrically driven single-photon emission at room temperature

Optical discrimination of metallic carbon nanotubes

Laser irradiation in the open air selectively removes m-CNTs from CNT mixtures

Efficient silicon heterostructure LEDs unveiled

Silicon nanocrystals embedded in a SiO2 matrix and combined with an n-type Al-doped ZnO (n-ZnO) layer to improve external quantum efficiency

Nanocrystals: size does matter

New fabrication method enables detailed studies of silicon nanorod emission

New routes to adjusting light from artificial atoms

Squeezing silicon quantum dots changes their colour

Nanowriter manipulates magnetic nanoparticles for high-density data storage

Dispersion and morphology of as-grown self-organized nanoparticles can be tuned via the post-irradiation dose of a low-energy ion beam

Non-tapered InN nanowires exhibit record narrow linewidths

Homogeneous structure allows band gap to be derived directly from PL spectroscopy in the range 5-300 K

Quantum-dot coating whitens LEDs

Korean team uses spin-coating technique to prototype white-light-emitting device

ZnS nanotubes available in template format

Highly controlled synthesis route provides foundation for investigating size-dependent phenomena

Coaxial cobalt-in-carbon nanotubes set optical-limiting benchmark

Applications for functionalized one-dimensional nanostructures include safety devices for sensitive optical detectors and human eyes

Nickel electrodes challenge ITO in OLED test

Thin-film nickel anode performs well in comparative study