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IOP A community website from IOP Publishing

Feynman Lectures 50th anniversary celebration seminar series


Building a brain: The atomic switch network

Speaker: James K Gimzewski from the University of California in Los Angeles

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Buyer’s Guide

Cleantech

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

Technology update

Protons penetrate graphene

Although theory suggests graphene is impermeable to protons, recent experiments show proton conductance of a single layer may be high.

Plasmons excite hot carriers

New theory could help enhance solar-energy conversion in photovoltaic devices and make better photocatalysts.

A dip in seawater energizes graphene

First observations of an induced "waving potential" when graphene is dipped into an ionic solution suggests possible applications in self-powered sensors and monitors, as well as in remote ocean devices.

Array of hope for silicon solar cells

The enhanced light absorption in single silicon nanowires does prevail when scaled up into nanowire arrays

Lab talk

Simple route to a widely applicable carbon coating

Direct pyrolysis of coronene leads to the amorphous carbon coating of boron powders.

Colloidal quantum dots: solar applications

Semiconductor nanocrystals for versatile quantum heterojunction solar cells.

Trapping light with nanowire-decorated micro-pyramids

Hybrid anti-reflective surfaces show great potential in solar-cell applications.

Highly ordered titanium dioxide nanotubes for dye-sensitized solar cells

Understanding surface roughness for more efficient devices.