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IOP A community website from IOP Publishing in the lab


5: Biocompatible lasers

Riccardo Sapienza and Marta Castro Lopez show us their research creating biocompatible lasers that could be used to diagnose disease.

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A look at how nanotechnology benefits solar cells, water treatment, wind turbines and other clean energy applications

Lab talk

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

Energy storage team designs carbon-encapsulated Fe3O4 nanocrystals

Simple glucose treatment could help to expand the electronic or electrochemical applications of metal oxides.

Li-ion batteries benefit from hierarchical LiFePO4/C

LiFePO4/C cathode offers excellent Li storage performance and high tap density.

CdTe coating improves photo-electron conversion efficiency of ZnO/CdS coaxial nanorods

Stepwise band structure of ZnO/CdS/CdTe photoelectrode helps to improve charge separation and extend electron diffusion length.

Hybrid nanomaterial enhances performance of thermoelectric generator

Asymmetric illumination scheme boosts current in prototype devices.

Imprinted nanovoids trap light in solar cells

Scalable and inexpensive technique suits organic thin-film devices.

1D magnetite nanostructures obtained without templates for energy applications

Fe3O4 nanobelts synthesized by a one-pot and template-free hydrothermal method using Na2CO3 and FeCl2 as reactants.

Flexible organic solar cells equipped with graphene electrodes

Reduced sheet resistance of chemically doped graphene film improves device performance.

Mild post-deposition treatments benefit colloidal nanocrystal solar cells

Use of dilute carboxylic acid solutions improves the photovoltaic response of tetrapod-shaped colloidal nanocrystal solids.

Sandia team demonstrates III-nitride nanowire array solar cells

Nanowire architecture could lead to higher efficiencies by overcoming strain limitations and guiding light via air voids.

Air-assisted fabrication paves the way for low-cost graphene solar cells

Easy-to-make graphene devices are ideal candidates for assorted infrared imaging applications.

Bent substrate enhances water splitting

ZnO nanorod arrays supported by a flexible polyethylene terephthalate substrate exhibit improved photoelectrochemical properties.

Nanowire coating benefits solar energy conversion

Metal oxide enabled silicon electrodes support efficient water solar splitting and hydrogen generation.

Feeling the heat of pyroelectricity

AFM operating in electrostatic force microscope mode reveals evolution of force gradients in gemstone placed on thermally cycled heating stage.

Study compares light trapping in hexagonal and square nano arrays

Array symmetry has little impact compared with other parameters such as periodicity, nanowire diameter and length

Highly flexible Ti-mesh upgrades DSSC electrodes

Dye-sensitized solar cells equipped with TiO2 nanotubes on Ti-mesh outperform foil-based designs in latest study

Quantum dot photonic nanocrystals increase conversion efficiency of solar cells

Self-organized growth and wet etching combined to create unique nanostructures for advanced management of photons and carriers

Aligned carbon nanotubes and non-aqueous electroytes ramp up performance of supercapacitors

Straight nanoconduits enable fast movement of ions to and from the electrode surface

Stamped polymer top layer provides opportunity for more-efficient hybrid solar cells

Upper network of thin channels further enhances the performance of hybrid polymer-silicon nanowire devices

Core-shell nanoparticles further improve cycling stability of lithium-ion batteries

Combination of a high-capacity active core and an electroconductive shell shown to enhance battery performance

Synergistic effect of nanocrystal integration and process optimization ramps up polymer solar-cell efficiency

Texas Tech team investigates the photophysical properties of SWNT/P3HT composite as a function of semiconducting-SWNT fractions