Australia Engineers Set New Solar Energy World Record With 34.5% Sunlight To Energy Efficiency (unsw.edu.au)

An anonymous reader writes: Australian engineers have edged closer to the theoretical limits of sunlight-to-electricity conversion by photovoltaic cells with a device that sets a new world efficiency record. A new solar cell configuration developed by engineers at the University of New South Wales has pushed sunlight-to-electricity conversion efficiency to 34.5% -- establishing a new world record for unfocused sunlight and nudging closer to the theoretical limits for such a device. The record was set using a 28-cm2 four-junction mini-module -- embedded in a prism -- that extracts the maximum energy from sunlight. It does this by splitting the incoming rays into four bands, using a hybrid four-junction receiver to squeeze even more electricity from each beam of sunlight.

Comments

Re:Not actually the most efficient

[DRJlaw]

So, they run it through a prism... the split the spectrum... would that not be considered 'focused'?

Since focusing involves making light rays converge and prisms generally make light rays diverge, I'm going to answer no.