Photonic-crystal full-colour displays

According to the NewScientist, full-colour photonic crystal displays could be on the market within two years. A team of Canadian researchers have developed a reflective display based on silica microspheres which can produce the whole visible spectrum without the need for colour filters.

The researchers stretch the crystals by bonding them to an electroactive polymer that [...]

Paper battery/supercapacitor

Researchers at Rensselaer Polytechnic Institute have developed thin, flexible energy storage devices consisting of more than 90 percent cellulose. The paper is infused with aligned carbon nanotubes (electrodes), and an electrolyte (e.g. an ionic liquid). The technology allows to fabricate batteries, supercapacitors, or devices which combine both functions.

According to the press release, the devices can [...]