Theoretically more than 80% efficiency possible!
Great article and great subject. Would love to read more articles of you.
As you know the limit only applies for standard single p-n junction cells as for example all those silicon stuff that is used nowadays.
However moving to multiple layers in tandem modules you can theoretically and also in the real world get massively over that limit.
Gallium-Arsenide based cells are already over that limit in real world...
Maybe you can write more about those, and about polymer cells etc..
Would be happy to here more about your science insights! Thx!