"Researchers in Japan reported a 100-fold improvement in their solar energy conversion method <...> Still, despite the 100-fold efficiency jump, BaTaO2N isn’t

"Researchers in Japan reported a 100-fold improvement in their solar energy conversion method <...> Still, despite the 100-fold efficiency jump, BaTaO2N isn’t quite ready for prime-time hydrogen production." ...A 100-fold efficiency jump, and on the IEEE site at that! One wonders how small it was before. I wish that supposedly authoritative sites such as the IEEE's one would actually publish verified data other than what to me seems like over-exaggerated hype just to gain news headlines. I'll take all that back if or when I see verifiable quantum efficiency figures taken before and after the breakthorugh.