Optoelectronic and plasmonic applications of graphene relies on cooling of hot electrons generated after interaction with light. A group of reserachers have studied the nature of this cooling using graphene as a thermometer and explains the findings by invoking supercollision mechanism found recently in graphene.
http://www.nature.com/nphys/journal/vaop/ncurrent/abs/nphys2493.html
http://www.nature.com/nphys/journal/vaop/ncurrent/abs/nphys2493.html
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