The complexes are useful for the conversion and storage of solar energy, for the production of photocurrents, and as catalysts for reduction reactions, for example, the production of hydrogen peroxide from oxygen and hydrogen gases, the production of H2 gas from water, and the reduction of ketones to form alcohols. This is as good as or better than any other existing PV technology and they are promising more. I do not know if this has yet been achieved, or even if it is achievable, but it is good to know that alternative technologies exist. I went to the page and read what they had to say. That sounds about right, based on thermodynamic principles and the color temperature of sunlight.
Reality is a long way from that.
That's only par for current PV technologies, and even that's contingent on a successful research program.