An interesting idea, but it's total wishcraft at this point. One significant thing the article misses is that if (big if!) they can make this work, it could si

An interesting idea, but it's total wishcraft at this point. One significant thing the article misses is that if (big if!) they can make this work, it could significantly increase the power output of the solar cells, since PV cell voltage is inversely a function of junction temperature. (Current is a function of insolation. This is why PV panels make much more power on a cold, clear winter day than they do in the middle of a Texas summer - the extra voltage more than makes up for the smaller winter current. And why although they've never caught on for cost reasons, hybrid PV/thermal panels can make sense on two fronts.)