Interesting, they managed to capture energy from the entire spectrum of sun light.
And it have better efficience in the case of ver low solar incidense.
https://news.osu.edu/chemistry-findi...ore-efficient/
But hydrogen??? Hell... Hydrogen sucks...
1-Comressed hydrogen leaks, since the hydrogen atoms are too small and pass through metal containers.
2-To turn hydrogen liquid you spent the equivalent to about 50% of the energy the same amount of hydrogen could deliver.
3-Hydrogen it's not very efficient to be transformed back in energy. Burn it's almost bad as a engine car in terms of efficience. And fuel cells are not a practical reality yet and also not much efficient (around 50%).
So you have to energy problem to transport hydrogen, as it leak from comrpessed tanks, the absurd of 50% of equivalente energy needed to use it as liquid, and you also have low efficience ways of use,
It's better to keep photovoltaic solar cells as energy into electricity, instead of it to skip to hydrogen.