Samsung has found a way of growing large mono molecular sheets of graphene without any grain boundaries on Germanium doped silicon wafers.

http://www.androidauthority.com/samsung-graphene-364824/

 

So allot of those amazing graphene discoveries and products that have been flooding the tech news the past six years now become more likely to be manufactured.

Out of all of the methods, I think this is the most promising. Combing the quality of exfoliated, with the ease of manufacture of Cu grown is quite the achievement.