There have been 3,000 to 4,000 scientific papers written on Perovskite – but so far none of the 10,000 to 20,000 scientist we know who are working on it have made any real money out of it. The big problem as those researchers will tell you with Perovskite, is long term stability, and we know that the one rule in the renewables marketplace is that energy systems have to be stable for at least 15 years, better still 35, because national infrastructure just cannot change more frequently than that. For most of those academics studying perovskite – it is just not as mature a technology as it needs to be. Talking to Oxford PV CEO Frank Averdung last week, he…