  Graphene and two-dimensional materials (2DM) remain an active field of
research in science and engineering over 15 years after the first reports of
2DM. The vast amount of available data and the high performance of device
demonstrators leave little doubt about the potential of 2DM for applications in
electronics, photonics and sensing. So where are the integrated chips and
enabled products? We try to answer this by summarizing the main challenges and
opportunities that have thus far prevented 2DM applications.
