It cannot be there the solar3d design was going to be more costly.
Basically it was thin film, which had to be foto cured, more as in how they make processors.
It should be more cost efficient if they manage to scale it up big time there you use much less silicon but the most used production way for pv cells nowadays is still poured and strained silicon.
There was one company experimentating with poured strained silicon which would then be lasered to create tiny porous structures that would capture the photons in a similar way as the solar3d concept did. Never heard from them again tough, probably not enough capital.
Maybe they should call Nelson :-)
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