Crystalline-silicon micro-photovoltaic cells measure from 14 to 20 micrometers thick and 0.25 to 1 millimeter across, offering a diverse array of potential uses.
Photo by Murat Okandan
Sandia project lead Greg Nielson holds a solar cell test prototype with a microscale lens array fastened above it. Together, the cell and lens help create a concentrated photovoltaic unit.
Photo by Randy Montoya