Ultra-thin graphene sheets could power smart wallpaper, other future apps

New ultra-thin, patterned graphene sheets developed by scientists could enable future applications such as “smart wallpaper” generating electricity from waste light or heat, and power a host of applications within the growing “internet of things,” says a new study.
A form of carbon just one atom thick, graphene is very strong and an excellent electronic material, but is inefficient for optical applications as it absorbs only 2.3 percent of the light falling on it. However