Inspect solar cells without a microscope

摘要

Solar cells convert light energy into electricity, making them a renewable energy source. Solar-cell manufacturers often use SEMs (scanning electron microscopes) to detect defects in solar cells while they're still ; in wafer form. Although SEMs can see down to a solar cell's grain structure, they can be slow because their scan ar-ea is small. A SEM must scan a wafer many times to cover it.