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

Technology update

Breaking research and industry highlights

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Polymer sorts carbon nanotubes

Technique separates semiconducting tubes from metallic ones, and smaller-diameter tubes from bigger ones

Flexible TEG breaks new power record

Thermoelectric generator could be used in mobile phones, laptops, biomedical sensors and other portable devices

Nickel nanofilm protects silicon PEC anode

A new corrosion-resistant electrode for use in photoelectrochemical cells could help in the development of large-scale hydrogen generators in the future

Ultrathin solar cell is efficient and easy to make

Perovskite-based devices have better than 15% light-conversion efficiency

Colloidal zinc phosphide for photovoltaics

Semiconducting nanocrystals are promising candidates for efficient solar cells

Porous polymers made simple

Single-step process could make life easier for manufacturers of catalytic converters and other products requiring hierarchically porous structures

Strained WS2 nanosheets boost hydrogen production

2D tungstenite might give platinum catalysts a run for their money

Exposed nanofilm edge states make good HER catalyst

2D molybdenum and tungsten selenide on curved surfaces appear to be active electrocatalysts for the hydrogen evolution reaction

Phototransistor combines graphene and chlorophyll

Approach boosts sensitivity to light

Graphene and nanotube carpets for energy storage

Hybrid super capacitor shows promise for portable electronics and renewable power applications. best of 2012

Find out which nanotechnology breakthroughs made it into our review of the year.

QD photodetector speeds up

New quantum-dot device dispenses with conventional thin-film architecture.

MoSe2 single layers for solar cells

2D material could rival graphene in optoelectronics applications.

Nanostructure could help make electron cloak

Device would be invisible to electrons.

Power cell generates and stores energy in one step

Hybrid device could power portable electronics.

Quantum dots for superior solar cells

Power-conversion efficiencies reach an all-time high of 7% for these materials.

Hybrid solar cells move on

UCLA researchers combine nanopillars with light-absorbing polymers.

Layered structures for next-generation solar cells

Simple solution-based processing technique could help make better devices.

Nano-heterojunctions improve solar cells

Structures may allow for high quantum efficiencies even in poor photovoltaic materials.

Light-trapping technique helps solar cells thin down

Devices could be just as efficient while being 10 times less thick.