Graphene is not the future of microelectronics IMO. It's much easier to keep the know-how of silicon and improve it: people right NOW are building transistors in sub 5 nm gate length in silicon. Graphene electronics is so detached from conventional solid state electronics, that it's not 10 years we can do all we can do with silicon in graphene and better.

Silicon technology is based on doping. When you start to reduce the size then you can't dope the material anymore (and before you get that small then the doping process becomes so non-uniform that your structures may be small - but they'd not behave as uniformely/predictably as they'd need to). There are size limits to what you can do with that material.

Plus, high purity silicon is rare and expensive to make. Carbon is ubiquitous - and a lot stronger/less brittle than silicon. Try getting to single layer tech with silicon and it'll splinter all over the place, because you can't find a good substrate on which it will stay in one piece.

..high purity silicon is rare and expensive to make..

The price of graphene is even higher. It's actually the most expensive material at the Earth by its volume cost.

Try getting to single layer tech with silicon and it'll splinter all over the place

This is irrelevant for applications in high-integration density electronics. Btw the thin silicone films are flexible.

Graphene has actually gotten a lot easier to reproduce, and getting cheaper quite quickly.

This is very awesome.