2d Silicon Hybrid Material

I noticed an article on a new 2d sheet combining silicon, nitrogen, and boron. It's another honeycomb-shaped system, challenging the almighty graphene When I first read the news article I thought this had been synthesized, which would've been really nice. But at this point the work is only computational, but it's still quite interesting. There are so many candidates for 2d semiconductors out there... makes me think, which one will be the king? Link