we could be looking at the next advancement in high security prison cells, or with correct application could be used as a future touch screen based visual display.

Ainda que não teremos o aquecimento do material, melhor ainda!

linke.

We report a metallic state in a nanostructured porous crystal 12CaO.7Al2O3 by incorporating electrons in the inherent subnanometer-sized cages, in which a three-dimensionally closely packed cage structure acts as an electronic conduction path. High-density electron doping ( approximately 2 x 1021 cm-3), which was achieved by a thermal treatment in Ti metal vapor at approximately 1100 degrees C, induces homogenization of the cage geometry to a symmetric state, resulting in an insulator-metal transition with a sharp enhancement of the electron drift mobility from approximately 0.1 to 4 cm2 V-1 s-1. The results provide an approach for the realization of electroactive functions in materials composed only of environmentally benign elements by utilizing the appropriate nanostructures.