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nanotechweb.org 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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Top-grade perovskite boosts solar cells

(with audio) A hot-casting solution-processing technique produces perovskite crystals with millimetre size grain cells.

QDs couple to PRCs

Plasmonic ring cavities could be good alternatives to the widely used “dimer” or “bowtie” nanoantenna structures as possible light emitting sources in all-optical chip circuits.

Hedgehog particles break the rules

(with video) Spiky structures dissolve in both hydrophobic and hydrophilic solvents – without being “chemically camouflaged”.

Triggering mineralization Nature’s way

In situ electron microscopy reveals the role acidic polymers play in allowing living organisms to form minerals.

Porphyrins split water using red light

Molecules could help in the development of low-cost artificial photosynthetic systems that can produce hydrogen fuel in a renewable way.

STM sees many-body effects

(with audio) Researchers succeed in directly imaging how electrons interact with each other in a single molecule.

Conducting hydrogel makes a good biosensor

New and simple device can detect a wide range of human metabolites, including glucose, uric acid and cholesterol.

Opals turn atom spectra upside down

(with audio) The natural simplicity of atoms as perfect resonators reveals new optical behaviour in photonic crystals.

Molecular motors make contracting gel

Light-driven device could find use in a wide range of applications, including artificial muscles, nano- and micro-robots, and advanced mechanical motors that work using nanomachines.

Nanowire photonic chip detects single photons

(with audio) Device could be used to make real-world optical quantum computers in the future.

Engineered nanoribbon bandgaps help improve electronics

Researchers create atomically perfect graphene ribbons with varying widths using a bottom-up fabrication technique.

Nanocomplex images differentiating stem cells

New real-time imaging technique could be used to screen drugs for treating neurodegenerative diseases and brain trauma.

Making better Li-ion battery membranes

Depth-profiling XPS technique can determine how lithium ions are distributed in nanostructured block polymer electrolyte thin films.

CQD solar cells go hierarchical

Devices with pyramid-shaped electrodes absorb much more incoming sunlight.

'Delta doped' NV centre couples to PC cavity

Researchers make major strides in positioning diamond defect with nanoscale accuracy.

Semiconductor solder seals nanojoints

Chalcogenidometallates could be used to make clean electrical contacts when fabricating tiny transistors and printable electronics and optoelectronics.

Nanoscientists bag Descartes-Huygens Prize

Ludwik Leibler and Willem Vos rewarded for their work in polymer science and nanophotonics respectively.

NanoMRI could image single biomolecules

Technique is also the first nanoscale magnetic resonance imaging technique to work at room temperature.

Nanotechweb.org: best of 2014

We look at some of the highlights from the past 12 months.

MoS2 goes piezoelectric

Result will be important for designing atomically thin devices, low-power on/off switches in MEMS, ultrasensitive biosensors and even valleytronics.