Nanopillar Solar Cells

Researchers at the University of California, Berkeley, have made a new kind of solar cell by growing an array of upright nanoscale pillars on aluminium foil. They make bendable solar cells by encapsulating the entire cell inside a transparent, rubbery polymer. The design, the researchers suggest, could lead to solar cells that cost less than conventional silicon photovoltaics. The nanopillars allow the researchers to use cheaper, lower-quality materials than those used in conventional silicon and thin-film technologies. What’s more, the technique used to make the cells could be adapted to make rolls of flexible panels on thin aluminum foil, cutting manufacturing costs