Microscopic algae called diatoms could help triple the electrical output of experimental, dye-sensitized solar cells, according to researchers at Oregon State University and Portland State University.

By trapping light inside the nanoscale pores of thin-film solar cells coated with diatoms, the engineers claim that more incident photons are captured to boost electricity generation, thereby greatly increasing efficiency.

“In our system, photons bounce around inside pores formed from diatom shells,” said OSU professor Greg Rorrer, “making them three times more efficient.”