Simple Nano Trick Purifies Silicon for Energy Applications

A grind and an acid bath produces silicon good enough for batteries and solar cells

3 min read

Simple Nano Trick Purifies Silicon for Energy Applications
A nanotech trick for making nearly photovoltaics grade silicon starts with bulk silicon [left], which is milled to a nanoscale powder [center], and then purified with acid [right].
Photo: Jia Zhu