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IOP A community website from IOP Publishing in the lab


1: Increasing control of optical properties with magnetoplasmonics

Paolo Vavassori describes research combining magnetic properties with plasmonic systems.

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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

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.

ZrO2 nanoparticles boost colour temperature uniformity in white LEDs

Deviations in angular-dependent correlated colour temperature could be improved by 58%.

Seed particles govern nanowire growth and properties

Gold-seeded GaN nanowires grow slower compared with nickel-seeded ones and also contain 2D defects that are seldom found in nickel-seeded GaN nanowires.

Analysis compares growth mechanisms of Zn-polar ZnO nanowires on O-polar ZnO and on sapphire

Understanding how nanowires grow on different substrates will help developers to optimize the performance of devices such as photovoltaic solar cells, nano-generators and light-emitting diodes

Metallic ferrofluids show optical limiting

Nickel nanofluid with kerosene base displays optical limiting and magnetic field dependent transmission

Time-resolved fluorescence spectroscopy looks deeper into germanium nano-islands in silicon

Fluorescence spectra with nanosecond temporal resolution reveal charge-recombination dynamics at a glance

Vectorial recipe serves up a Xe'ek of multi-waves

Combined action of metallic nanosystems gives ultrafast all-optical phase modulation

InGaN/GaN heterostructures: building blocks for solid-state lighting

Optical analysis of single nanowire emission identifies main source of loss and reveals route for improving the performance of nanoLEDs