Tunable material promises cheap route to electronic books and advertising displays. A material that can readily switch between a rainbow of colors has cleared a key hurdle to commercialization, according to a group of entrepreneurial chemists. The developers of 'photonic ink' (P-Ink) say that the material could be used in electronic books or advertising displays. Their finished product, described in the latest issue of Angewandte Chemie1, can display any color, using a few volts of electricity. (source: nature.com)
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