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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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LEDs

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

X-ray sources see through commercial fabrication challenges

Matthew Cole highlights some of the advantages nanomaterials could offer the commercial x-ray source market if fabrication challenges can be met.

White light emission from a Si nanocrystal thin film

Observation of white light emission suggests potential for applications in white-light Si lasing and Si lighting.

InGaN/GaN multiquantum wells show high stability

InGaN/GaN quantum wells shows high stability upon ion irradiation.

Novel hybrid quantum well-dots nanostructures

Hybrid quantum well-dots nanostructures increase the efficiency of photovoltaic devices.

Polarizing colour filters for power-saving display

Developing more efficient liquid crystal display technology.

Designing nanoparticle dimers to achieve superbackscattering

Reaching the backscattering upper bound with nanoparticle pair designs.

Reconfiguring slanted plasmonic nanocolumnar thin films

Employing ion beam irradiation to tune photonic and plasmonic properties.

A feasible route to ultra-narrow multispectral light absorbers

Predicting the absorption scheme for highly scalable ultra-narrow multispectral light absorbers.

Ultra-thin multilayer films reveal surprising optical properties

Breaking down the ‘effective medium’ approach for sensing applications.

Artificial magnetism provides perfect electromagnetic absorbers

Patterning graphene for a tunable terahertz absorber.

Near-field transducers for next-generation hard-drive technology

Overcoming thermal issues with plasmonic nanostructures in heat-assisted magnetic recording.

Graphene nanoribbons steer infrared light

Controlling the reflection of infrared light using an aperiodic array of graphene strips.

Single-layer graphene electrodes

Replacing indium tin oxide with graphene for high-efficiency quantum-dot light-emitting diodes.

Ultraviolet light-emitting diodes: high efficiency and low cost

High-temperature growth enables short emission wavelength LEDs based on wide band gap semiconductors.

Controlling carbon nanotube photoluminescence

Silicon microring resonators could be key to carbon nanotube-based light sources.

Controlling emission from one dimensional photonic crystals for improved detection

Using near-field coupled emission can enhance or direct fluorescence

Ordered In(Ga)N nanocolumns grown on silicon

Rod-like structures fabricated via selective area growth process are ideal for LED applications and can be tuned across wide spectral range

Nanowires grown on polycrystalline silicon

Freestanding nanowires on glass-based polycrystalline silicon could improve light-emitting devices.

Understanding today the light sources of tomorrow

Resolving the debate on the radiative recombination mechanism in next-generation high-efficiency, phosphor-free, white LEDs.

Laser beam exfoliates graphite to form chemically tunable platform

Green synthesis route produces free-standing reduced graphene oxides at water–air interface.