Only applies to single-junction cells. 68%-efficient solar panels are quite theoretically possible, they'll just be incredibly difficult to manufacture cheaply. The current world record for solar panel efficiency is 47.6%.
I agree, however the author is convinced about current popular solar panel technology.
Indeed even theoretically we can do 86% multi and 99% with quantum dots——in the current state of technology these remain science fiction considering the commercial manufacturing processes available.
Indeed even theoretically we can do 86% multi and 99% with quantum dots——in the current state of technology these remain science fiction considering the commercial manufacturing processes available.