ARGONNE, Illinois, Jan. 23 -- The U.S. Department of Energy's Argonne National Laboratory issued the following news release: By Savannah Mitchem A flash of light traps this material in an excited state indefinitely, and new experiments reveal how it happens. A dry material makes a great fire starter, and a soft material lends itself to a sweater. Batteries require materials that can store lots of energy, and microchips need components that can turn the flow of electricity on and off. Each ma  more