Graphene peq

A team at the Institute of Physical Chemistry "Rocasolano" in Madrid predicts that graphene – a layer of carbon just one atom thick – could be used to create a perfect absorber of light if it is doped and patterned into a periodic array. The work could lead to improved light-detection devices, particularly in the infrared part of the electromagnetic spectrum, where current technologies struggle to function.

Reference:Complete Optical Absorption in Periodically Patterned Graphene