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IOP A community website from IOP Publishing spring round-up


We look at the top stories on over the first three months of 2015.

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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

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

Nano LEDs printed on silicon

Light-emitting quantum-dot patterns stamped directly onto hole transporting layer at room temperature

Selective area MOVPE drives III-V nano-integration on silicon

GaAs nanowires grown coherently on silicon without misfit dislocations

Microstructures control growth of organic light-emitting nanofibres

Gold-coated silicon microstructures guide nanofibers in preferred directions on sample surface

Nanocarbon suspension heats up

Study determines factors that contribute to increased thermal conductivity of nanofluids

Ion implantation embeds catalyst nanoparticles

Iron atoms introduced into easy-to-pattern SiO2 layers to nucleate nanowire growth

Nanoporous layer brightens LED performance

AlN layer patterned by AAO helps team to build better LEDs

Novel self-organized GaN nanorods

The development of high quality, self-organized and catalyst-free grown gallium nitride nanorods for LEDs, single photon emitters and biosensors

Handy control of ZnO film texture

Texture-controlled growth of ZnO films on substrates at room temperature by pulsed laser deposition

Smart PEG hydrogel enables highly selective nanoassembly

Microwell arrays assist self-assembly of colloidal structures for photonic crystal and biosensing applications